The Crew Dragon Flies

Crew Demo landing

This weekend a very important event happened, something many rocket enthusiasts have been waiting for. The first capsule designed to hold commercial crew was launched by SpaceX. A successful launch, the Falcon 9 carrying the first crew Dragon lifted off from pad 39A at the Kennedy Space Centre, Cape Canaveral, FL on the 2nd of March 2019 at 07:49 UTC. This was the first orbital test of the Dragon capsule, and although it was unmanned, it did hold a dummy test astronaut nicknamed Ripley, after the heroine from Alien.

loading the rocket
The modified Falcon 9 being rolled out towards the launch pad on the specially designed trailer. Credit: SpaceX
Crew Dragon
A close up side on view of the Crew Dragon while it it waiting to be loaded. Credit: SpaceX

The capsule was launched on top of the 70m tall Falcon 9 that had minor changes to work with NASA’s strict requirements for commercial crew. Trailing off in a north easterly direction, the Dragon capsule sailed on a 27 hour autonomous route towards the International Space Station. The capsule itself is 16ft tall, and 13ft in diameter, and is designed to be able to hold 7 people in relative comfort (compared to the previous equivalents). This capsule sits on top of a trunk that could contain some cargo on future trips. The capsule is 12ft tall, 12ft in diameter, and coated in solar arrays. The cargo section is not designed to survive a journey back to Earth, with the heat shield and thermal protection system being on the capsule itself.

John Kraus Photos
A great long exposure shot of the Crew Demo launching, taken from Merritt Island. FL. Credit: John Kraus Photography. Click on the photo and buy one of his rocket prints!

The first stage of the Falcon 9 powered through the thick lower atmosphere for about 2 and a half minutes before shutting down and separating. The booster B1051.1 was brand new, performing landing burns on its way back through the atmosphere to come back and land successfully on the autonomous drone ship “Of Course I Still Love You”. The landing was particularly rough with choppy seas out in the Atlantic that day. The booster did not manage to hit right on the X on the pad, but was still stood up when it returned to port Canaveral. This was a big moment as it is now the 35th successful booster recovery. Just a minute after the first stage landed the second stage engine cut-off. A few moments later the Crew Dragon was released from the second stage to begin the 27 hour journey to the ISS.

landscape
A landscape view of the launchpad 39A at Cape Canaveral, with the first commercial crew mission on board the Falcon 9. Credit: Marcus Cote Photography. Click the image and go buy one of his prints!

The 400lb capsule glided to an automated docking early on Sunday morning, completing one of the major milestones of the mission. Aided by a laser rangefinder and a thermal camera the Dragon capsule approached the space station and linked with the docking port on the forward end of the complex at 10:51 UTC. This is now the first privately owned human rated spaceship to reach the ISS. The link up happened at over 400km over the northern end of New Zealand during what is known as orbital night time. The capsule first held back at around 60 m from the station, testing radio links. When given the go ahead it then moved towards the ISS at 10cm per second or 0.2mph. The capsule actually arrived 9 minutes ahead of schedule when the latches engaged to create a connection with the International docking adapter.

Crew Dragon
The Crew Dragon moving slowly towards the ISS. Credit: NASA

The station docking adaptor was installed over the old space shuttle docking port, at the forward end of the Harmony module. The arrival marks the first time a visiting spaceship has docked there since the last flight of the shuttle Atlantis in 2011. Once docked 12 hooks closed to forma firm mechanical connection, and then two umbilical lines were attached by robotic arms to allow the stations electrical system to power the Dragon module during the stay. After a number of checks, Saint-Jacques opened the crew Dragons hatch, becoming the first person to board the ship. The crew wore face masks when entering the Dragon, as they would with any other visiting spacecraft, for precaution. Once the capsule was given the all clear the crew removed their masks and unloaded the 100 lb of cargo stowed under the seats. On board the Dragon was a small stuffed toy in the shape of Earth, made by Celestial Buddies. NASA astronaut Anne McClain quickly picked it up and made a video with it. Celestial buddies were unaware that they would have one of their toys would be going on a mission, and they are therefore sold out for now, but they have some great other toys on offer instead.

Crew Dragon
A closer view of the Crew Dragon, just moments bore docking. Credit: NASA
long exposure of the Falcon 9
A 277 second exposure of the Falcon 9 launching from LC-39A, so long that it shows the separation of the first stage. Credit: Mike Seeley.

The Crew Dragon will depart the space station early on Friday at 07:31 UTC, followed by a de-orbit burn at 12:50 UTC. The spacecraft jettisons the unpressurised trunk section, with the solar panels and radiator, what will burn up in the atmosphere. The heat shield on the Crew dragon will then protect it as it comes into the atmosphere from a northwest to southeast direction. Aiming for a splashdown under the four parachutes somewhere in the Atlantic Ocean, east of Cape Canaveral at 13:45 UTC. The next big test for the Crew Dragon will be a launch where the launch escape system is tested. Designed to push the capsule away from the rocket if there is a major failure, that launch will be in late June of 2019 if all goes well. The first crewed mission is planned for July this year.

A great image turned into a poster from the rocket launch, with an emotive quote by Elon Musk. Credit: Erik Kuna.

Thank you for reading, take a look at my other posts if you are interested in space, electronics, or military history. If you are interested, follow me on Twitter to get updates on projects I am currently working on.

Follow @TheIndieG
Tweet to @TheIndieG

The First Launch of a Commercial Lunar Lander

Marcus Cote Photo
A Falcon 9 lights up the sky above the Space Coast for the first time in 2019. Here’s a long exposure from 321 Boat Club in Melbourne, Florida. Credit: @marcuscotephoto

At 01:45 UTC on February the 22nd 2019 an already flown Falcon 9 was the first SpaceX rocket flown from the Cape in 2019. Launching from SLC-40 in Cape Canaveral, FL, the 70 metre high rocket flew three satellites into space. On board was an Indonesian communications satellite, a privately funded Israeli moon lander and an experimental space surveillance satellite for the US Air Force. The Falcon 9 first stage booster successfully landed back on Earth for a third time, landing on the autonomous drone ship “Of Course I Still Love You”.

SpaceX launch
A shot of the Falcon 9 launching from SLC-40 at Cape Canaveral with 3 satellites on board. Credit: SpaceX.

The Israeli moon lander is the first of its kind, attempting to be the first privately funded mission to the Moon. It was also the first to separate from the rocket at 33 minutes after liftoff. Within minutes of separation the spacecraft opened its four landing legs and radioed ground control with a status report. At 585 kg at launch it is not especially heavy for a spacecraft, and not the heaviest on board, but without fuel it would only be 150 kg. It is roughly 2m in diameter and 1.5 m tall with the landing legs extended. It is named Beresheet after the Hebrew title of the biblical book of Genesis. After several orbits of the Earth the spacecraft will begin to slowly raise its orbit with the on board thrusters. The process will take roughly 7 weeks to reach the Moon’s area of gravitational influence. At that point the spacecraft will perform manoeuvres to be captured into a lunar orbit, staying there for between two weeks and a month. When in the correct orbit, it will attempt a soft landing on the surface, aiming at the northern end of Mare Serenitatis. The landing zone is a circle of about 15 km.

SpaceIL co-founders Kfir Damari, Yonatan Winetraub and Yariv Bash insert a time capsule on the Beresheet spacecraft. Credit: SpaceIL
spacex launch
Great view of the 9 engined, 70m rocket launching from the Cape in late February. Credit: SpaceX

The aim of the Moon lander, beyond being the first commercial lander, is to measure the Moon’s local magnetic field to help understand how it formed in the early solar system. To do this it has an on board magnetometer, made by the Weizmann Institute of Science. It also has a laser retroreflector array payload provided by NASA Goddard Space Flight Center. This is a device that will reflect a laser back the direction that it came from. The Apollo astronauts installed a similar device that is still used today to measure the distance the Moon is from Earth at any one time. You do need a very powerful laser to achieve this though. With minimal science instruments the spacecraft is not designed to last long on the surface. It has no thermal control so is expected to quickly overheat when functioning. It therefore has an expected life of just two days after landing on the surface. The craft also has a digital time capsule that contains over 30 million pages of data, including a full copy of the Bible, English-language Wikipedia, many children’s drawings, memories of a Holocaust survivor, Israel’s national anthem, the Israeli flag and a copy of the Israeli Declaration of Independence.

rocket landing
The Falcon 9 rocket’s first stage lands on SpaceX’s drone ship “Of Course I Still Love You.” Credit: SpaceX

Made as a competitor for the Google Lunar X prize, Beresheet is made by SpaceIL. They are a non-profit, and have reportedly produced the mission for less than $100 million, which is extraordinarily cheap for this kind of mission. This is going to be the first private interplanetary mission that’s going to go to the moon,” said Yonatan Winetraub, a co-founder of SpaceIL, which had its origin in a brainstorming meeting in a Tel Aviv bar. “This is a big milestone. This is going to be the first time that it’s not going to be a superpower that’s going to go to the moon. This is a huge step for Israel.

“Until today, three superpowers have soft landed on the moon — the United States, the Soviet Union and recently, China,” . “And (we) thought it’s about time for a change. We want to get little Israel all the way to the moon. This is the purpose of SpaceIL.”


Winetraub, in a news conference
long exposure launch
Long exposure of the launch from across the water. Credit: SpaceX

The Indonesian Nusantara Satu communications satellite was by far the heaviest payload on board at 4,100 kg, deployed 44 minutes into flight. Formerly known as PSN-6, Nusantara Satu is a high throughput satellite that will provide voice and data communications as well as broadband internet throughout the Indonesian archipelago and South East Asia. Built by SSL for PT Pasifik Satelit Nusantara, it was the first private telecommunications company in Indonesia. The cost of the project is estimated at $230 million. The mission uses solar electric ion thrusters to get to the correct orbit, but will employ conventional chemical thrusters to stay in that orbit. It is expected to last at least 15 years.

Nusantara Satu
The Nusantara Satu spacecraft, topped with the Beresheet lunar lander and the U.S. Air Force’s S5 space situational awareness satellite, is pictured before encapsulation inside the Falcon 9 rocket’s payload fairing at Cape Canaveral. Credit: SSL

The other secondary payload on the Falcon 9 was an experimental Air Force satellite intended to test space situational awareness technologies. The flight was brokered by Spaceflight, a Seattle based company that finds rideshare launch services. The S5 satellite was made for the Air Force Research Laboratory (AFRL). Although the mission has had very little information released about it there has been some. Blue Canyon Technologies announced in September 2017 that it won a contract from AFRL to build two small satellites to operate in GEO. One was identified as S5, a 60 kg satellite using a payload provided by Applied Defence Solutions. The illustrations released show an optics system attached to a satellite bus, and a solar array. “The objective of the S5 mission is to measure the feasibility and affordability of developing low cost constellations for routine and frequent updates to the GEO space catalog,” Blue Canyon Technologies said in its statement. The S5 satellite is attached to the Nusantara Satu satellite and will be until it reaches GEO, where it will separate, turn on, and start its mission. This is not dissimilar to Hispasat 30W-6 that also deployed a smallsat after launch last year.

blue canyon S5 smallsat
Blue Canyon Technologies announced in September 2017 it won an AFRL contract to provide the bus for an experimental smallsat called S5 for space surveillance applications. Credit: Blue Canyon Technologies

Thank you for reading, take a look at my other posts if you are interested in space, electronics, or military history. If you are interested, follow me on Twitter to get updates on projects I am currently working on.

Follow @TheIndieG
Tweet to @TheIndieG

Mars InSight Has Been Busy

insight selfie
This is NASA InSight’s first full selfie on Mars. It displays the lander’s solar panels and deck. On top of the deck are its science instruments, weather sensor booms and UHF antenna. Credit: Nasa/JPL-Caltech.

So I have talked previously about the launch of the latest lander on Mars, named Mars Insight. Launched on the 5th of May 2018 by an Atlas V 401 from Vandenberg AFB, it began its 6 month journey to the red planet. Travelling across 484 million km it landed on 26th of November 2018. It landed much like the Curiosity and Phoenix missions with a parachute decent and then using rockets to lower the lander onto the surface gently. The mass of the lander is about 358 kg, but due to the gravity on Mars being two thirds less it only weighs 134.6 kg on the surface. Just a few hours after touchdown the Mars Odyssey orbiter relayed signals indicating that the solar panels had successfully opened, generating power. The relayed signal also contained a pair of images of the landing site. For the next few weeks InSight checked the health of the on board systems and monitor the weather and temperature of the landing site.

InSights workspace
This mosaic, made of 52 individual images from NASA’s InSight lander, shows the workspace where the spacecraft will eventually set its science instruments. The lavender annotation shows where InSight’s seismometer and heat flow probe can be placed. Credit: NASA/JPL-Caltech

The images relayed were used to find the best area to place the Seismometer instrument. There was then some time for scientists to evaluate the information and pick the best spot to place the sensitive instrument. On the 19th of December Insight used its 8ft robotic arm to pick up the Seismometer from the deck of the lander, and place it on the ground nearby. The position picked was one fairly free of rocks, making the leveling process easier. There was then another set of a few weeks to adjust the cable and ensure the SEIS instrument was perfectly placed. Then the arm picked up a protective cover from the lander to place over the instrument. This is designed to minimise noise from the surrounding atmosphere, being introduced from huge temperature changes and wind vibrations. This will allow the seismometer to pick up the tiny tremors that the planet may have. This is the first time another planet has been studied this way, the only other planetary body being the Moon. Viking 1 and 2 had seismometers on board but design flaws meant the results were inconclusive.

Temperature is one of the biggest issues with a mission like this. On Mars the temperature can range over 90 degrees Celsius in just a single sol (Martian day). The protective cover is ringed with a thermal barrier and a section of chain mail around the bottom. The wind and thermal shield has been specifically designed for the environment to moderate the temperatures. JPL has a history dealing with Mars temperatures from the many missions it has sent there including the Phoenix lander, and the Curiosity rover. The SEIS instrument was provided by the French Space Agency CNES, and developed by the Institut de Physique du Globe de Paris, with JPL building the wind and thermal shield. There is also a great British part of the instrument with some of the silicon sensors designed and fabricated by Imperial College London. The microseismometers were designed to pick up the faintest seismic activity from the surface. Scientists from Oxford’s Department of Physics also supported the development, and the Rutherford Appleton Laboratory’s RAL Space worked closely with the team to develop the front electronics of the instrument as well as the space qualification.

SEIS instrument cutaway
Cutaway illustration showing interior components of SEIS. Credit: NASA/JPL-Caltech/CNES/IPGP
microseismometer
One of the microseismometer sensors, carved from a single piece of silicon 25mm square. Credit: Imperial College/T.Pike.

On the 12th of February the lander deployed the HP3 package onto the surface. Known as the Heat Flow and Physical Properties Package, it was placed about a meter away from the seismometer. The Idea of HP3 is to measure the heat flow through Mars’s subsurface, hopefully helping scientists to figure out how much energy it takes to build a rocky planet like Mars. An interesting instrument, it has a self-hammering spike, or mole, allowing it to burrow up to 5m below the surface. This is much deeper than any previous mission. Viking 1 only scooped down 8.6 inches, and the predecessor of Insight, Phoenix dug to 7 inches. The probe was provided by the German Aerospace Centre (DLR). A tether attached to the top of the mole features heat sensors to measure the temperature of the Martian subsurface. Heat sensors in the mole itself will measure the soils thermal conductivity (how easily the heat moves through the surface). The mole plans to stop every 50 centimetres to take the measurements, as the hammering creates friction, releasing heat that would likely impact the instruments readings. It is then heated up by 28 degrees Celsius over 24 hours, with the temperature sensors measuring how rapidly this happens.

A GIF of the Insight lander placing the instruments on the ground. Credit: NASA/JPL-Caltech

Along with the Insight lander, the launch also contained a new first, a pair of cubesats known as MarCO-1 and MarCO-2. The size of small suitcases the pair were the first cubesats to enter and work in deep space. The team nicknamed the WALL-E and EVE, and they functioned as communications relays during the insight landing, beaming back data from the decent, along with the first image. WALL-E also managed to capture its own great images of Mars as it soared past it. The mission cost was about $18.5 million, much less than most missions, and was designed by JPL as a technology demonstrator mission. Neither is still in contact with Earth, with WALL-E losing contact on the 29th of December 18, and EVA losing contact on the 4th of January 19. JPL says they will attempt to contact the pair again in the future, but it is unlikely. The MarCO satellites will still live on though, with some of the spare parts going towards other cubesat missions, including experimental radios, antennas and propulsion systems. They also pushed the idea of using commercial parts to develop the system.

MarCO
Engineer Joel Steinkraus uses sunlight to test the solar arrays on one of the Mars Cube One (MarCO) spacecraft at NASA’s Jet Propulsion Laboratory. Credit: NASA/JPL-Caltech
MarCO GIF
MarCO-B, one of the experimental Mars Cube One (MarCO) CubeSats, took these images as it approached Mars. Credit: NASA/JPL-Caltech

Just as an addition, there is a great comic that can be found here about Mars Insight, by the oatmeal. It is worth a quick read.

Thank you for reading, take a look at my other posts if you are interested in space, electronics, or military history. If you are interested, follow me on Twitter to get updates on projects I am currently working on.

Follow @TheIndieG
Tweet to @TheIndieG

Snowy Day at Harwell

So Oxfordshire got a big helping of snow in the last few years, and although Harwell campus wasn’t shut immediately it allowed for a great walk into work from the bus stop. It was a great opportunity for a few photos, and I decided to make this post to highlight some of my favourites.

snowy trees next to the cricket pitch
Snowy trees next to the cricket pitch.
snowy trees next to the road from Thomson entrance
A view towards the cricket pavillion from the edge of the pitch.
view from cricket pitch
A view across the road from the cricket pitches.
Thomson entrance
The Thomson entrance with a snowy cover.
Snowy fence
A view through the fence with a heavy helping of snow.
Campus HQ
Campus HQ from the Thomson entrance.
Snowy campus HQ
Campus HQ from the entrance, flag flying.
Quad One
A view towards the Quad One section of campus, and the new gym.
Campus pond
The pond frozen over, still wouldn’t skate on it though.
Oxford Space Systems
The Oxford Space Systems building and connected businesses with a snowy front lawn.
On top of the mound
Some undisturbed trees on top of the STFC mound.
Fermi Avenue
Fermi Avenue as the snow started up again.
Satellite Applications Catapult
Satellite Applications Catapult from the bus stop.
Bus stop
Bus stops with a few weary travellers hoping the busses are still running

Thank you for taking a look at my photos of a snow covered Harwell campus. Take a look at my other posts if you are interested in space, electronics, or general history, especially about the Harwell campus. If you are interested, follow me on Twitter to get updates on projects I am currently working on. Most of all, thank you for taking the time to read my posts.

Follow @TheIndieG
Tweet to @TheIndieG

Eighth Set of Iridium NEXT satellites launched

flying falcon 9
A falcon 9 launching from Vandenberg AFB in the early hours of the morning. Credit: SpaceX

At 15:31 UTC on January the 11th 2019 an already flown Falcon 9 was the first SpaceX rocket flown in 2019. Launching from Vandenberg Air Force Base in California, it launched ten more Iridium NEXT satellites. The 70 metre high rocket with its 9 merlin 1D engines is the first of 18 expected flights this year for SpaceX. A surprisingly clear day for Vandenberg, the Falcon 9 flew over the Pacific Ocean early in the morning (local time) giving a great view of the launch. The Falcon 9 first stage booster successfully landed back on Earth for a second time, landing on the autonomous drone ship “Just Read the Instructions”.

vandenberg launch
A great view of the Falcon 9 launching with another 10 Iridium NEXT satellites aboard, finishing up the set. Credit: SpaceX
The mission patch of the Iridium NEXT 8 mission.

The booster used for this mission was B1049.2, which had previously flown on Telstar 18V mission, making this the second time this Block 5 first stage has flown. The 1.71 million pounds of thrust took the 9,600 kg payload towards a Polar Low Earth Orbit, like the other Iridium NEXT satellites. The rocket deployed the satellites one at a time over a roughly 15 minute period, around 30 minutes into the flight. Each of the 1,896-pound (860-kilogram) Iridium Next satellites will use their own thrusters to climb into a higher 476-mile-high (780-kilometer) to orbit, where six of the new spacecraft will rendezvous with the last of the old Block 1 satellites.

NEXT satellites
The Iridium Next satellites were connected to their dispensers inside a clean room at Vandenberg Air Force Base, California, before mating to the Falcon 9 rocket. Credit: Iridium
The SpaceX rocket high above the ground at Vandenberg, CA. 10 Iridium NEXT satellites aboard. Credit: SpaceX

This mission of ten more upgraded spacecraft has completed the build-out of Iridium’s modernised $3 billion global communications network. They are setting up for the planned debut of new broadband and aircraft tracking services in the coming months. This completes the 75 payloads on eight Falcon 9 missions since January 2017. The idea was to upgrade the old voice and data relay networks currently still in use. Iridium ordered 81 Iridium NEXT satellites from Thales Alenia Space and Northrop Grumman Innovation Systems, which were built in Gilbert, Arizona. Two weeks after the maiden flight of the Falcon 9 in 2010 Iridium announced a nearly $500 million contract for SpaceX to deliver the satellites to orbit. The initial plan was to start launching in 2015, finishing around 2017. Delays pushed by two Falcon 9 problems in 2015 and 2016 pushed the schedule back. In the end only 75 of the planned 81 have been launched, with 6 being flight spares. They could be launched to be additional backups for the system.

Falcon 9
A photo showing the raw power of the Merlin 1D engines launching the Falcon 9. Credit: SpaceX

The old satellites, that were built by Lockheed Martin had an initial lifespan of 7 years, and have way outlived their planned life. Engineers are currently deactivating the retiring satellites as the new stations arrive in orbit. Most of them have been maneuvered out of orbit to fall back to Earth and burn up in the atmosphere. They have usually gone through a process of “passivation” where the batteries and propellant tanks are drained to minimise chances of them exploding at some point in the future. Iridium satellites have also been a popular sight for astronomers, with “Iridium flares” becoming a commonly used term. It is where reflective parts of a satellite catch a glint from the sun and show up on the ground as a flash, sometimes 5-20 seconds long. They can be as bright as magnitude -8, which is brighter than Venus in the sky. Iridium satellites have been known to be a noticeable cause of these flares, leading to the name “Iridium flares”. The new satellites have a different antenna shape meaning they do not reflect in the same way.

Iridium flares
An iridium flare over Butser Hill, Hampshire. Credit: Nikki Young (@astro_niks)

As well as majorly upgraded telecommunications ability the satellites also host a radio receiver for Aireon, an affiliate of Iridium. Aireon work with traffic control authorities in Europe and Canada. The new instrumentation will track air traffic worldwide, including planes travelling outside the range of conventional ground based radar. This completion of the network has allowed the services provided by Aireon to take a big step forward towards starting operations. When airplanes fly out of radar range, pilots are typically instructed to maintain a certain course and altitude, ensuring 30-to-100 miles (about 50-150 km) of separation between aircraft for safety purposes. With real-time global monitoring, those requirements could be relaxed. According to Aireon the certification of the system should be complete by March, allowing operational trials over the North Atlantic.

merlin engines
A photo showing the Raw power of the nine Merlin 1D engines, exposed to see the flames in a better light. Credit: SpaceX

Thank you for reading, take a look at my other posts if you are interested in space, electronics, or military history. If you are interested, follow me on Twitter to get updates on projects I am currently working on.

Follow @TheIndieG
Tweet to @TheIndieG

The Genius of Bob Widlar

National Semiconductor Ad
A famous National Semiconductor ad based on the Widlar Salute and methedology

If you are at all interested in early IC design, especially that in the start of silicon valley, it’s likely that you will have come across the name Bob Widlar. If you have not heard of him then this post may shed some light on an early pioneer of the semiconductor industry. Not just a great hardware engineer, arguably a legendary one. Shaping integrated circuit designs for over a decade he created circuits still in use today, and some of the most famous chips ever. Including the uA702, the first linear IC operational amplifier and the LM109, the first high power voltage regulator. Although a great engineer he was famous for his pranks, and odd office habits. He definitely would not like the current state of corporations, with a bohemian look on life Bob Widlar can definitely be described as eccentric.

Bob widlar salute
Bob Widlar showing the official Widlar salute.

In the late 1960’s and 70’s the semiconductor industry was like something out of a scene in a wild west film. The bars around Silicon Valley were packed day and night with engineers creating innovative circuits and designs left and right, and Bob was right there in the middle of it all. I think a key point to note is that he was partial to his alcohol, for better or worse there are accounts that he wouldn’t make a speech until the had his allotment of scotch or wine. This wasn’t uncommon for the time though, everyone around him was likely the same. The History of Semiconductor Engineering (a very expensive book) describes, “Bob was a fiercely independent individual, very happy to be by himself, and he did everything in a stunning way, which was absolutely natural to him, but completely weird to so-called ‘normal people’.” Basically he didn’t care what other people thought about him. If you want to change an entire industry you have to upset a few people on your way, so this mindset might be best.

Bob Widlar disliked digital circuitry
It could be said that Bob widlar was not a fan of digital circuitry.

There isn’t much known about his early life, and reportedly rarely spoke about it. We do know thought that electronics played a huge role in his early life as his dad was a self taught radio engineer. His father worked at a local radio station so Bob had access to ultra-high frequency transmitters. At 15 he was featured in his local newspaper as an electronics designer who could fix radio and TV sets. Allegedly he also played pranks on the local police using radios, but there is no known details. The passion for electronics continued on when he joined the United States Air Force in 1958. He was responsible for teaching fellow recruits in the use of electronic equipment such as radios. During this time he actually wrote a book, his first, Introduction to Semiconductor Devices. This seems to be a slightly different person to the famous side of Bob Widlar. Some say that his “liberal mind” wasn’t a good fit for the military environment, but his early performance reviews suggest otherwise. His superiors noted his superior electronics and communications skills, they also noted that he had an above average ability to use clear concise words to express himself, and always strived for perfection. In areas of improvement he was recommended to stop dramatising his frustrations at inefficiencies that exist”. This might be closer to the famous widlar. He then left the service in 1961 for unknown reasons, and joined the Ball Brother Research Corporation in Boulder, Colorado. There he helped develop analog and digital equipment for NASA. He was simultaneously studying for a degree with the University of Colorado and graduated in the summer of 1963.

His work at Ball Brothers brought him in contact with Jean Heorni and Sheldon Roberts (who invented radiation hardened transistors), some of the founders of Fairchild Semiconductor. They breached professional ethics by hiring him, a key employee of their customer. He apparently arrived at the interview intoxicated and told the R&D manager what he thought of Fairchild’s analog circuits, saying”what they are doing is bullshit”. He had a second interview and was hired even with the objections by the initial interviewers. His first task at Fairchild was to target IC reliability by improving the fabrication process. He managed to reduce the price of the planar process, and showed he could improve his own bosses designs and squeezed him out of the company. At this point Fairchild only had a lineup of three analog IC’s, all designed for the military, all amplifiers. They were all built inefficiently, like a conventional circuit with discrete devices, creating a sort of hybrid IC. The famous Gordon Moore (of Moore’s Law fame) wanted the company to favour digital IC’s as they were cheaper, easier to design and allowed high volume. Widlar opposed the strategy and held digital electronics in low esteem, famously saying “every idiot can count to one”. Along with the process engineer David Talbert, they rushed through Widlars designs for new and improved analog IC’s, changing the industry as they did so. He managed to remove the need for big resistors and capacitors in IC’s, and truly grasped the planar process. This is when he created the μA702, the first true linear integrated circuit, and the first monolithic operational amplifier.

Bob and a group of engineers at National Semiconductor.

He also created the μA709, another legendary chip. This moved Fairchild to become the leader in the field of linear IC’s. Their circuits were sold out for two years. Some say that at one point Widlar designed and Talbert made 80% of the linear circuits in the world. The problem was that Fairchild never shared the massive profits with them. So he took up a job with National Semiconductor in 1965, taking a huge amount of stock as part of the deal. He refused to do the exit interview at Fairchild and wrote one line to them “I want to be RICH!”. Oddly, Fairchild continued to pay his salary until 1966, Widlar said “Maybe they did not believe that I was actually leaving. Some people are really a little slow.” By 1966 they had set up the epitaxial process at Santa Clara, and created the industry’s first linear regulator. The LM100, a revolutionary new circuit became a flagship product, soon followed up in 1967 with the LM101, an op amp with highly improved performance due to a simple yet robust design. He followed it up with many more improvements to amplifiers, with higher bandwidth, voltage and gain. As well as the famous Widlar current source, he also managed to harness the bandgap phenomenon and built the bandgap voltage reference. This allowed the design of the LM109, a voltage regulator with a power transistor and precise voltage source on one die, something never seen before. By this time Fairchild had gone into a massive decline while National Semiconductor had rocketed up the food chain. In December 1970 he resigned from National Semiconductor and cashed in his stock for $1 million, apparently due to payment issues. He retired to Puerto Rico at the age of 33. The next four years he spent as a consultant.

Widlar current source. Original drawing from the 1967 U.S. patent.

He did come back to National Semiconductor in 1974 as a consultant. During the short stints he spent there he developed the LM12 power amplifier and and the LM10 ultra-low voltage amplifier. These have stayed in production until the 21st century, with the LM10 not even having a reasonable clone for the next decade. in 1981 he spent three years starting Linear Technologies, but this relationship eventually fell apart three years later over patent rights, and his shares were forcibly bought. For the remainder of his life he worked at National semiconductor until 1991 when he died of a heart attack at the age of 53. He had apparently taken up running late in his life and was much healthier. One of his fellow engineers Bob Pease said the damage was done in the first 20 years.

Bob Widlar standing over artwork of the LM10 power amplifier

On top of his famously eccentric nature, fighting in bars and unceremoniously leaving companies he was a well known prankster. The most famous one was the day he brought a sheep to work. The reason was to save money for the company by using it as a lawn mower. He brought it in the back of his Mercedes-Benz convertible for the day. The management not particularly pleased refused to comment. Widlar even invited some young photojournalists to document the event. After the day he left the sheep in a local bar and it was “mysteriously stolen”. On another note he apparently disliked people coming into his office and being excessively loud. He therefore built what is now known as a Hassler circuit which emits a high pitched sound whenever it hears something too loud. In the same vein he also blew up a public address speaker he found annoying with firecrackers! As an analog engineer and highly skilled with high frequency transmitters he once traced one of his problems to interference from the control tower of San Jose airport. In the Widlar way he called up the airport and demanded that they shut down the transmitter. He did have a thing about faulty components and problems, as any electronic engineer can appreciate. If he had spent a day trying to fix a fault just to find a simple component was the cause he would take it out to the workshop an pulverize it with a hammer. The practice now known as Widlarizing usually uses a sledgehammer and requires the component to be smashed so small you don’t even need to sweep it up off the floor. This was so the component couldn’t cause anyone else more problems.

Bob Widlar with the famous sheep, trying to get it to mow the lawn for him. The Mercedes is in the background, badly parked.

Thank you for reading, take a look at my other posts if you are interested in space, electronics, or general history. If you are interested, follow me on Twitter to get updates on projects I am currently working on. Most of all, thank you for taking the time to read my posts.

Follow @TheIndieG
Tweet to @TheIndieG

How Satellite Data Can Aid Archeology

For hundreds of years, maybe even thousands, humans have been digging holes, trying to unearth treasures of a bygone age. It is a messy affair, lots of shoveling and moving large amounts of dirt or sand. When it gets down to it small trowels may need to be used or even little brushes. How do we know where to dig? Well sometimes there are already existing structures, or the remnants of buildings. There could also be a building that has been there a long time. We just have to find hints that something interesting is under the ground. Archaeology can find things like pottery, tools and coins, but also parts of old structures. The problem is that more often than not these things are buried, else we would already know about them. In recent years archaeologists have used remote sensing methods to have a basic look underneath the ground before they dig it up. Basically the devices send a signal into the ground and see what gets reflected back. This can be very time consuming, moving equipment to a random field and spend all day setting up and getting reasonable measurements. Now with the increase of satellite technology there is a new way to look for new sites.

Inverted kite aerial photo of an excavation of a Roman site at Nesley near Tetbury in Gloucestershire. Taken on a kite line. Credit: Dr John Wells

The method of using satellite imagery, such as that found on Google Maps, is generally referred to as an aerial survey. Traditionally this was done using cameras attached to an airplane, balloon or UAV’s. People have also been known to use kites! These pictures can be useful to help map a large area, or a site that is particularly complex. Plus if they are taken fairly often then they can be used to document to progress and status of the dig. This angle of image can also help to detect things not obvious from the ground. Things like different coloured soil/sand, or locations of certain types/colours of flowers can hint at a buried structure or wall. When solid rocks develop under plants they tend to grow slower, so a wall may actually be fairly obvious if looked at over time. Certain plants such as ripening grain changes colour rapidly, and if anything slows it down then it is noticeable compared to the other grain. When looking at different times of day the shadows could show areas of a field that are slightly raised from its surrounding.

In this satellite image, the white arrows show a potential previously unknown buried pyramid and the black arrows other structures which have yet to be investigated. Credit: National Research Council, Italy.

With more and more Earth monitoring satellites going up all the time, companies like Planet Labs can now offer a satellite image of a specified part of land with updated images in the days and sometimes hours timescale. There have also been changes in the type of satellite going up, they are no longer just taking standard images. Modern technology allows the use of sensors seeing different wavelengths of light. The different bands of the electromagnetic spectrum can tell us different things about the thing you are looking at, and most of the spectrum, the human eye cannot see. Most of these satellites are designed to be used to look at weather conditions, specifically things like clouds and effect on the ground. Many modern weather satellites use microwave sensors to probe the ground. Much like microwave radar used to track airplanes, the satellites can send a signal towards the ground, and the signal that gets reflected back can say plenty about the surface. This is similar to the way ground penetrating radar works. SAR (Synthetic Aperture Radar) satellites are an example of this technology. There is also a good portion of satellites with Infrared spectrum sensors. This band is often giving data on aspects like temperature, showing how different sections of land are reacting to weather conditions can say plenty about what the ground is made of. There are also other methods to map the surface, such as LIDAR which is used in range finding applications, showing distances from the satellite to the ground.

Airborne laser-scanning technology, called LiDAR, provides a 3-D map of part of the Maya city at Caracol in Belize. LiDAR cuts through the jungle to reveal the hidden features beneath, a revolution in the study of ancient Maya landscapes. Credit: Courtesy Arlen Chase

Even though this is a fairly new technology for archaeology, there have been some significant uses of it. One of the most prominent uses have been to study the Maya civilization in ancient Mesoamerica. A particular area of interest is the Petén region of northern Guatemala. Very dense forest, and little to no modern settlements in the area make it difficult to study. Remote sensing has allowed scientists to study potential causeways and canals used by this early civilization. There have also been hints at cisterns and temples and buildings that they may have lived in. This allows for archaeologists to have a much better idea of where to look, without ever having to visit the jungle. In Peru, a group of Italian scientists have been getting results using satellite imagery. They have managed to get images of a buried settlement, including a pyramid in a riverbed. The North of Peru has also been known to be a haven for clandestine excavations. Satellite data has been useful to map and monitor archaeological looting. There have also been attempts to find lost cities such as Iram of the Lost Pillars in the Arabian Peninsula. The researchers found interesting information on old trade routes and uncovered a previously unknown settlement. There is also an award winning TED talk by Dr Sarah Parcak on using citizen science to search for sub-surface remains, Using normal people looking at satellite images they have prospectively found several significant sites in various parts of Egypt and the ancient Roman Empire.

A LiDAR image of the Caana complex at the heart of Caracol, at left, shows the tree canopy surrounding a 140-foot-tall building (in an aerial photo at right). The lasers also penetrate the jungle to reveal structures hidden by that overgrowth. Credit: Courtesy Arlen Chase.

Thank you for reading, take a look at my other posts if you are interested in space, electronics, or general history. If you are interested, follow me on Twitter to get updates on projects I am currently working on. Most of all, thank you for taking the time to read my posts.

Follow @TheIndieG
Tweet to @TheIndieG

A Great Start to the Space Year

2018 was a great year for space, but it was barely a few days into 2019 and three amazing achievements in space have happened. We had new Horizons studying the furthest object studied in space, the Chinese space agency landing a rover on the far side of the Moon, and OSIRIS-REx mission reached bennu.

New Horizons

By far the biggest news in the space sector recently, New Horizons officially flew by object 2014 MU69, the outermost close encounter of any Solar System object. Launching in 2016, New Horizons was a mission designed to help us understand the worlds at the edge of our Solar System. The biggest part of the mission was in 2015 when it made the first reconnaissance of the dwarf planet Pluto, producing some amazing photos. After that it kept venturing out into the Kuiper Belt to study more mysterious objects. The spacecraft is helping us to understand the basic questions about the surface properties, interior makeup, geology and atmosphere of the bodies it passes. The exploration of the Kuiper belt is one of the big priorities in planetary science currently. New Horizons fits into this plan, by seeing how Pluto and its Moons “fit in” to the other objects in the Solar System. It has already aided in finding four previously unknown Moons of Pluto, and studied the known Moon Charon in much more detail.

New Horizons Artist
An artistic impression of what New Horizons looked like when it passed Pluto and Charon. Credit: NASA Goddard Media Studios.

New Horizons was designed, built and is operated by The John Hopkins University Applied Physics Laboratory in Laurel, Maryland. Alan Stern of the Southwest Research Institute (SwRI) in Boulder, Colorado is the principal investigator. It flew by the Kuiper belt object 2014 MU69 barely a few hours into the new year at 05:33 UTC on January 1st 2019. The flyby technically ends on January 9th, where it switches from 3-axis mode to spin mode. This is the beginning of the downlink phase which could run for around 18 months! This is because it is so far away, the frequency (and therefore the data rate) is much lower than if the spacecraft was close. The current extended mission is planned to last until April 30th, 2021. If still operational there may be a new extended mission, but it has very limited fuel at about 11kg. The craft could in theory visit another Kuiper Belt object. If it lasts until the mid 2030’s it will join Voyager 2 in the Heliosphere, but based on the RTG it may run out about then.

Ultima Thule
Image of 2014 MU69, taken 30 minutes before closest approach from a distance of 28,000 km (17,000 mi). Credit: NASA/John Hopkins Applied Physics Laboratory.

Chang-E4

On January 3rd 2019 at 02:26 UTC China’s Chang’e-4 spacecraft successfully landed on the far side of the Moon. The first ever soft landing on the far side of the Moon, up until this point we only has remotely sensed images. The target of the spacecraft was the Von Kármán crater, located within the South Pole-Aitken basin. This is where an ancient lunar impact may have exposed some of the Moon’s mantle. The plan is to study this region directly with the rover and the lander. It also allows for a close up look at the far side of the Moon, which could be a perfect place for science applications such as radio astronomy. As there is no direct line of sight to the far side of the Moon they need a relay satellite. The satellite that China launched is the Queqiao relay satellite, launched in May 2018.

An image of the rover similar to the Chang’e-3’s rover. Credit: CNSA.

OSIRIS-Rex

Coming into the new year, on December 31st OSIRIS-REx entered orbit around Bennu. The orbit is at around 1.75 km (just over a mile), and is the place it will be doing an extensive remote sensing campaign. 101955 Bennu, or 1999 RQ36, is a carbonaceous asteroid in the Apollo group. Discovered in 1999, it has a 1 in 2700 chance of impacting Earth between 2175 and 2199. The name Bennu references the Egyptian mythological bird associated with the sun, creation and rebirth. The OSIRIS-REx mission is a sample return mission to the asteroid Bennu. Its goal is to obtain a sample of at least 60g and then bring that sample back to Earth for scientific study. The aim is to help scientists to learn about the formation and evolution of Solar System in its initial stages of planet formation and the source of organic compounds that eventually lead to life. If the mission is successful on September 24th 2023 it will be the first US spacecraft to return samples from an asteroid.

Asteroid Bennu, imaged by the OSIRIS-REx probe (3 December 2018). Credit: NASA/ Goddard/ University of Arizona.

Thank you for reading, take a look at my other posts if you are interested in space, electronics, or military history. If you are interested, follow me on Twitter to get updates on projects I am currently working on. Most of all, thank you for taking the time to read my posts this year! So all have a Happy New Year, and here’s to a great 2019 in space!

Follow @TheIndieG
Tweet to @TheIndieG

The Space Missions of 2018

2018 has definitely been a big year for space, and space exploration. I have managed to capture a few of the great moments like the launch of InSight, JAXA landing rovers on an asteroid, and the launch of the Parker Probe. There have been a few others that are notable mentions, and that is the point of this post, to talk about some great launched missions, and others that have finished their jobs, purposely or forced.

Bepicolombo

The British built Bepicolombo launched in October 20th, to begin its 7 year journey to visit Mercury. Currently one of the least explored planets in the solar system, Bepicolombo intends to change that. When it arrives in late 2025 it will endure temperatures of over 350 °C, and be there for at least a year, possibly for twice that. It is made up of two spacecraft, the Mercury Planet Orbiter (MPO) lead by ESA, and the Mercury Magnetospheric Orbiter (MMO) lead by JAXA. The aim is to measure the composition, atmosphere and magnetosphere of Mercury to understand its history. This could lead to understanding more about how other planets such as Earth formed. BepiColombo is named after Professor Giuseppe (Bepi) Colombo (1920-1984) from the University of Padua, Italy. He made big leaps in understanding Mercury, and suggested to NASA how to use a gravity-assist swing-by of Venus to place Mariner 10 into a solar orbit of Mercury.

Bepicolombo artists impression
Artist’s impression of the BepiColombo spacecraft in cruise configuration. The Mercury Transfer Module is at the bottom. The Mercury Planetary Orbiter is in the middle. The Mercury Magnetospheric Orbiter sits inside the sunshield, visible at the top. Credit: ESA/ATG medialab

InSight

Back in May I posted about how an Atlas V had just lifted the Mars Insight lander. In late November the $814 million lander it reached its target of the Elysium Planitia region of Mars, landing safely. The aim is for it investigate how the processes that shaped all the inner rocky planets more than 4 billion years ago worked. It uses two seismometers (one of which built by RAL space in the UK) and a number of other instruments to study the crust, mantle and core of the red planet. It works by measuring how much the area shakes when asteroids hit the planet. Also measuring the heat flow and precision tracking it is getting a glimpse of Mars we have yet to see. The launch also allowed for two cubesats, MarCO-A and MarCO-B to be the first to be launched into deep space. The first test of miniaturised cubesat technology being used on another planet. This mission will be one to watch for the near future.

There’s a quiet beauty here. Looking forward to exploring my new home. #MarsLanding pic.twitter.com/mfClzsfJJr— NASA InSight (@NASAInSight) November 27, 2018

Kepler

A bit sadder news is the end of the Kepler space telescope after 9 years service. It has collected a huge amount of data in its lifetime, finding the night sky is filled with billions of hidden planets, more planets than stars. This may seem obvious but is not easy to prove. During its time the planet hunter has found evidence of more than 2,600 planets outside our solar system, and left hints at many more, paving the way for future planet hunters and getting good engineering data on what works and what doesn’t. Telescopes such as ARIEL which will launch in the net decade will have better design due to Kepler. The space telescope had been running low on fuel for months, and struggled to point the correct way. After the 4 year mission it continued to work a different mission named K2. In October it was officially declared dead, left in orbit as it may have been dangerous for it to enter the atmosphere.

The Kepler Space Telescope mission, by the numbers
The Kepler Space Telescope mission, by the numbers. Credit: NASA/Ames/Wendy Stenzel

Parker Solar Probe

Back in august I wrote about the classic Delta IV heavy launching with the Parker Solar Probe aboard. The aim is to get closer to the sun than previously possible. Over the next seven years the probe will make 24 close approaches to the sun, with the aim of eventually getting within 3.8 million miles of the surface. The previous record (that Parker has now broken) was 26.6 million miles, set in 1976. It will revolutionise our understanding of the sun, and how the changing conditions can affect the solar system. It will use Venus’ gravity to slowly get closer to the sun. As a reference, we are 93 million miles away from the sun. It will eventually fly through the sun’s outer atmosphere, known as the Corona for the first time, getting brand new, in situ measurements. The spacecraft has a 4.5 inch thick carbon composite shield to protect it from the heat and radiation. The temperatures will reach over 1300 C.

Parker Solar Probe in the Fairing
Parker Solar Probe in the Fairing, ready to be put on the rocket in the clean room. Credit: NASA/Johns Hopkins APL/Ed Whitman

TESS

Back in April I posted about the launch of the TESS exoplanet hunter by a Falcon 9. I have already talked about exoplanets and planet hunters, and this is a big part of that plan. TESS stands for Transiting Exoplanet Surveying Satellite, and it does what it says on the tin, it is surveying the sky for potential exoplanets. Basically it is looking for exoplanets that could harbour life. The expectation is that it will catalog thousands of planet candidates and vastly increase the known number of exoplanets. Approximately 300 are expected to be Earth-sized and super-Earth-sized exoplanets that can then use the future more complex telescopes such as JWST to look at in more detail. The satellite will look at the sky for two years by breaking it up into 26 sections, and looking at each one for 27 days at a time. Unlike Kepler and K2 TESS will be looking at brighter stars, meaning ground based observatories can corroborate the observations.

the TESS telescope
The TESS satellite before launch, the four cameras can be seen on the top of the spacecraft; Credit: NASA.

Dawn

In September I posted about the Dawn spacecraft and the rise of Ion Engines. With the loss of the Dawn mission around the same time as Kepler, they ran out of fuel within two days of each other. The 11 year Dawn mission racked up a few very important records. It is the first spacecraft to orbit two different celestial bodies, and the first to orbit any object in the main asteroid belt between Mars and Jupiter. It is also a record breaker for electric speed. Travelling over 25,700 mph. Visiting Ceres and Vesta, it found out some very important scientific data that tells us a huge amount about the formation of our solar system. With a large proportion of the meteorites hitting Earth coming from these two bodies, Dawn showed the difference between the potential dwarf planets. One of the early uses of ion engines, it also showed the potential of the efficient form of travel, and now many more satellites are using them.

Dawn prior to encapsulation at its launch pad on July 1, 2007. Credit: NASA/Amanda Diller

Mars Rovers

This is a mixed bag, we have already had great news about the InSight lander, with it recording sounds of Martian winds, the rovers also have big news this year. In June the Curiosity rover found Organic matter in the Martian soil. The samples, taken from 3 billion year old mudstone contained complex hydrocarbons. This along with its detection of methane changes in the atmosphere are one step along the way to finding evidence of life on other planets. There have also been many more photos from the red planet, with Curiosity taking a few more selfies. See here how the car sized rover achieves the great pictures. On the other side of it there was a huge Martian storm that may have killed the Opportunity rover by covering the solar panels in dust. Although there are still hopes the rover can start communications again, we will have to see.

Curiosity in a dust storm
An image shared by Seán Doran on Sunday of the Mars Curiosity in the middle of a dust storm reported to cover an area the size of the US and Russia Combined. CredIt: NASA/JPL/Seán Doran.

Asteroid Rovers

In late september, another great story came out, that JAXA (the Japanese space agency) successfully landed a number of rovers on an asteroid. Still to launch all of the four onto the surface, there are already great images from the surface of an asteroid. The little rovers use a hopping mechanism to get around, as the gravity on the asteroid is so small a wheeled rover just wouldn’t work. The spacecraft will also be attempting to collect samples to return to Earth in the coming years. The Hayabusa 2 probe is a follow up to the Hayabusa probe which was not a sample return. The second launched on December 3rd 2014 and rendezvoused with the near-earth asteroid 162173 Ryugu on the 27th of June 2018. Currently in the process of surveying the asteroid for a year and a half, it will depart in December 2019, returning to Earth in December 2020.

 MINERVA-II image
First pictures from a MINERVA-II-1 rover that landed on the asteroid. Credit: JAXA.

Thank you for reading, take a look at my other posts if you are interested in space, electronics, or military history. If you are interested, follow me on Twitter to get updates on projects I am currently working on. Most of all, thank you for taking the time to read my posts this year! So all have a Happy New Year, and here’s to a great 2019 in space!

Follow @TheIndieG
Tweet to @TheIndieG

Operation Mincemeat: The Imaginary Man

Major Martin Identity card
One of the identity cards on Major Martins body when it was found.

The 1st of May 1943, the height of the second world war. Early in the morning on a spanish beach, a fisherman found a waterlogged corpse. Not an uncommon thing to find at this time it looked like he had washed ashore during the night. The dead body was a man dressed in British military uniform wearing a life jacket and suspiciously he had a briefcase chained to his arm. Reported as a casualty of an airplane accident at sea the body was moved to a local port where Nazi officials in the city of Huelva took possession of it. From the items on the body they identified him as Major William Martin, a temporary captain acting major in the British Royal Marines. The German intelligence organisation (the Abwehr) decided to break open the briefcase to examine the contents, but did contemplate letting it go on intercepted. Along with personal effects they found personal correspondence between Lt. Gen. Sir Archibald Nye, vice chief of the Imperial General Staff, and Sit General Harold Alexander, the British commander of North Africa. The letters described key details of plans to invade Nazi Held territory. It seemed like Germany now had the upper hand, but all was not as it seemed. All part of the British Operation Mincemeat, this is not a christmas story.

Within days the news of the body being found in Spain got to the British military. The body was returned and buried with full military honours in Huelva. The spanish took longer to return the documents though. The British admiralty demanded their return, with emphasis on discretion due to their sensitive nature. The Spanish government had to respond as they were technically a neutral party, but they were sympathetic to the Nazi cause. Eventually the documents were returned to the British military, but not before the German Abwehr agents had teased open the sealed letters, photographed the entire contents of the briefcase, and then resealed the envelopes. The photographs made their was to Berlin to be carefully analysed. The German intelligence were wary of a ruse, and examined the other effects in great detail. His possessions included many normal items like a photograph and love letters from his fiance, a set of keys, recently used stubs for the theatre and a hotel bill. After the close inspection they believed the items were likely genuine. This indicated the letters he was transporting were also authentic. There was another letter from the Chief of Combined Operations to the Commander-in-Chief in the Mediterranean that indicated that Major Martin was carrying a letter too sensitive to be sent through normal channels. This was the apparently reason that he was flying, acting as a courier. An image of his body can be found here.

Major Martin's fiancee, but really an MI5 officer.
The image of Major Martin’s fiancee found in the briefcase.

By all appearances the Axis powers had stumbled upon some extremely valuable intelligence, and they thought that the Allies were unaware. This, a letter indicating the exact beaches that the Allies were planning to use to invade, beaches the Axis powers could divert troops and reinforcements. The plan in the letters was described as “Operation Husky”, a secret plan to invade Nazi controlled Europe via Sardinia, Corsica and Greece. It also described a false attack upon Sicily, to draw German forces away from the “true” invasion site. Up to this point the Germans expected the Allies would invade via Sicily. Upon learning of the letter, Adolf Hitler took action. On May 12th he sent an order: “Measures regarding Sardinia and the Peloponnese take precedence over everything else.” This order diverted significant defences away from Sicily to the landing points indicated in the letter. These defences included an extra Waffen SS brigade, several Panzer divisions, patrol boats, minesweepers and minelayers. The thing is, the attacks never came to Sardinia, Corsica or Greece. The German intelligence had been duped by an elaborate deception designed to draw the Nazi defences away from the true target: Sicily. Major Martin, the dead man with the briefcase never existed.

Adm. John Godfrey
Adm. John Godfrey, the British director of naval intelligence, crafted the idea for Operation Mincemeat with the help of Lt. Cmdr. Ian Fleming. When Fleming went on to create the world of James Bond, it was rumored that the character M was based off of Godfrey. Credit: Imperial War Museum

The idea to plant false military documents on a dead man, who then fell into German hands was conceived by Lt. Cmdr. Ewen Montagu at British Naval Intelligence. He had built on an earlier idea proposed by Flight Lt. Charles Cholmondeley of the counter-intelligence service MI5. The original plan was to place a wireless radio on a dead soldier whose parachute was rigged to look like it had failed. The radio would then be a channel to provide disinformation to the enemy. This plan was deemed impractical, so the death at sea ruse conceived by Montagu was used instead, dubbed operation mincemeat. The Montagu team quietly procured the body of a 34 year old homeless man who had recently died of pneumonia. As his lungs already contained fluid like a drowned man’s would, it was perfect. As the body was waiting in storage his new identity was fabricated. MI5 had an operation known as the Twenty Committee, who had expertise in counter espionage. They were known as the XX, witch is the roman numeral for 20, but also refers to “double cross”. They gave the corpse identification, keys, personal letters, and other possessions. They attempted to show that Major Martin was an absent minded yet responsible chap, so as to explain the fact he had chained himself to the briefcase. They planted evidence such as overdue bills, and a replacement ID card to achieve this.

transporting Major Martin
Charles Cholmondeley and Ewen Montagu on 17 April 1943, allegedly transporting the body to Scotland.

On April 2th 1943, the new Major Martin was placed on the submarine HMS Seraph in a special steel canister packed with dry ice. The crew set of the coast of Spain, where a citizen of the Axis-aligned country would locate the body and report it to the authorities. After two days at sea the sub surfaced about a mile off the coast of Spain at 4:30 in the morning. The plan was so secret that the crew of the submarine believed the canister contained meteorological equipment, carrying it on deck. Then everyone went below, apart from the officers. There in the dark, Lt. Norman L.A. (Bill) Jewell, the commander of Seraph explained the plan, and the contents of the canister, swearing the men to secrecy. They then removed Major Martin from the canister, onto the deck. They then fitted a life jacket and chained the briefcase to him. They read the 39th Psalm and committed the body to the sea, where the tide could take him to shore. When discovered, the British requesting the swift return of the briefcase helped the illusion that the contents were important. To complete the illusion, Major Martin was even mentioned in the British Casualty list in the Times. When the British got the documents back they found tell tale signs that the letters were opened. They also intercepted German transmissions indicating the Nazi’s were moving forces towards Greece and Corsica. The news prompted a brief cable to Winston Churchill with the words “Mincemeat Swallowed Whole”.

Officers of HMS Seraph
The officers of HMS Seraph, the submarine selected for the operation, on board in December 1943. Credit: Royal Navy

On July 9th 1943 the Allied forces launched the real attack, Operation Husky. The plan struck the southern tip of Sicily, and the swiftly conquered the island. For the following two weeks the Germans still anticipated the landings in Sardinia and Greece, but they never came. By the time they realised of the trick, there was no time to regroup, so the forces retreated to Messina. It took a month to take control of the entire island. In the years afterwards there have been speculation of the true identity of Major William Martin. In 1996 an amateur historian, Roger Morgan wrote the book the Man Who Never Was. The book theorised that the body was of Glyndwr Michael, a Welsh vagrant. His official cause of death was of chemical pneumonia due to ingesting rat poison. The markings at his burial place in Heuva have been updated to show Glyndwr’s name on the tombstone. That being said, not everyone is convinced, as some pieces of the story don’t fit such as the time between his official death and the execution of Operation Mincemeat. Also the HMS seraph took a long detour before heading to the Spanish coast, which leads to the possibility the body was picked up elsewhere. There are theories that it could be a victim of an accident onboard the HMS Dasher. Due to the nature of the operation, and the efforts to protect the true identity it is unlikely we will ever find out who Major Martin was.

Thank You for reading, take a look at my other posts if you are interested in space, electronics, or any other sort of history. Alternatively follow me on Twitter to get updates on projects I am currently working on.

Follow @TheIndieG
Tweet to @TheIndieG