Orbital ATK resupply the ISS

Orbital ATK launch of a Antares 230 Rocket
Orbital ATK launch a cargo resupply mission to the ISS on an Antares Rocket from Wallops. Credit: Orbital ATK Flickr.

On May 21st 2018, Orbital ATK’s Antares launch vehicle orbited the companies Cygnus OA-9 cargo hauling spacecraft. Launched from the little known NASA Wallops Island in Virginia, it took off from pad 0A at 08:44 UTC. OA-9 took 3,250 kg of cargo to the international space station, along with several cubesats that with deployer hardware added roughly 120 kg. This launch was in honour of J.R.Thompson, former Orbital Science CEO, who passed away in 2017.

Antares 230 waitjng
Antares 230 rocket waiting to launch from NASA Wallops Island. Credit: Space Launch Schedule

It was the third flight of the Antares 230 variant, a redesigned vehicle powered by two Energomash RD-181 engines instead of the AJ-26 engines that powered the first five Antares flights. The change was made after one of the AJ-26 turbopumps failed and triggered a destructive explosion above the pad in 2004. Cygnus OA-9 was the sixth enhanced Cygnus with a stretched cargo module, but only the third to fly on Antares, Atlas 5 launched the other three.#

ISS Cargo waiting
The OA-9 Cygnus cargo waiting to me mated with the rest of the rocket at Orbital ATK. Credit: Orbital ATK Flickr.

According to Orbital ATK, Cygnus  OA-9 weighed 6,173 kg at launch, matching OA-8 payload for heaviest launched by an Antares rocket. The RD-181 engines produce a total of 392 tonnes of thrust at liftoff, that powers the 293 tonne rocket into the sky. Built in Ukraine (former Soviet design), the first stage burned for 211 seconds. After first stage shutdown it seperated and coasted “up hill” for 37 seconds before the Orbital ATK Castor 30XL second stage motor ignited to produce 51 tonnes of thrust for 160 seconds. The payload fairing separated 12 seconds before second stage ignition. Cygnus separated into a 198 x 317 km x 51.63 deg orbit about 9 min 6 sec after liftoff.

OA-9 loading cargo
Orbital ATK loading cargo into the Cygnus OA-9 second stage. Credit: Orbital ATK Flickr.

The Buran Warehouse

So browsing the internet recently, I came across a great blog by Ralph Mirebs. He classes himself as an urban explorer and photographer. In this blog post, he has some awesome photographs that he has taken in an abandoned hangar in Kazakhstan.

The Baikonur Cosmodrome in Kazakhstan is currently the only place where astronauts can be sent up to the International Space Station. They get sent up via the Soyuz rocket, after the USA’s Space Shuttle was retired in 2011. Now the European space agency, and NASA both use this launch site to send up astronauts. On the subject of the space shuttle though, one hangar in the Cosmodrome holds some great pieces of history, captured by Mirebs in photographic form.

The Hangar

The hangar in question is knows as the MZK building. Designed by the Izhevsk Institute “Prikampromproekt”, the building is 132m long, and 62m high. Its fairly run down now, but in it’s day it was at the pinnacle of the Soviet space effort. The doors on the front measure 42m by 36m. Big enough to transport the rocket systems needed for the project. On top of that, these doors were perfectly sealed, so the building could be kept at a higher than normal pressure, to keep dust out. They weren’t really doors, they were just structures that just happened to move.

the massive doors

The building itself is fairly close to a heavily used launch site, so naturally it was made from a special form of steel, and was designed to withstand a rocket exploding on the nearest launch site. There are offices and laboratories on either side, four stories high. They hold testing equipment and controls. Inside the main part of the building are 3 cranes that are able to lift 400 tons each.

the 400 ton cranes

So what is this enormous secret Soviet era building holding? Well it houses 2 Buran class rockets, of only a few left in the world. The Buran programme was the Soviets reaction to the NASA’s space shuttle system. Although the Buran programme didn’t really take off (if you’ll pardon the pun!) it still holds some historical significance today. The reasoning behind the Buran system will be saved for a later post.

Looking at them, you would be forgiven for thinking that these weren’t really important. They have years of bird poo and dust covering them. Of the two ships in the hangar, one is the second flying prototype. Known as “little bird”, although never officially named. At the time that the Buran programme finished in 1993, it was about 97% ready. Unfortunately, the ship is now showing signs of wear, with the heat tiles falling off, and smashed windows. This ship started to be built in 1988, and was meant to fly in 1991 and 1992; with planned flights to the Mir space station.

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The second ship is known only as OK-MT, simply made as an engineering mockup. It has the same look, and shape, but was never designed to fly, it was for use by engineers to test functions on the ship, so they don’t accidentally break the real thing. This one was a mockup for the other ship, known as OK-1k2, which was the only Buran calls shuttle to have the red bars on the cargo bay. This one seems in better condition, still holding onto many heat tiles, and most of it’s windows.

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Unfortunately, most of the insides of the shuttles have been torn out, likely salvaged to be used on other projects. Some think they could have been salvaged for precious metals. Although it is a bit of a mess there is still a quality about the way it looks. A ship that was so close to being a massive part of the space age, and missing out by just a few years. Imagine if the Chief Designer had these ideas a few years before, these ships could have been the way we send astronauts into space.

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It is sad that these pieces of equipment are just the remnants of the late Soviet Union, just left to rot. Hopefully one day they will end up in a museum, along with the other important parts of the space race era. Until then, we can only use these pictures to get a glimpse into the Buran Shuttle.