Armadillo Aerospace was an aerospace startup company based in Mesquite, Texas. Its initial goal was to build a crewed suborbital spacecraft capable of space tourism,[2] and it had also stated long-term ambitions of orbital spaceflight. The company was founded by John Carmack,[3] co-founder and former chief technical officer of id Software.
On October 24, 2008, Armadillo won $350,000 by succeeding in the Level 1 Northrop Grumman Lunar Lander Challenge. On September 12, 2009, Armadillo won $500,000 by succeeding in Level 2 of the same challenge.[4][5][6]
In 2010, they signed an exclusive deal with Space Adventures. Armadillo Aerospace was to provide a suborbital rocket to fly tourists into space, while Space Adventures would sell tickets for the experience.[7][8]
In August 2013, Carmack announced that Armadillo Aerospace had been put in "hibernation mode", following setbacks including the crash of the STIG-B rocket in January 2013.
In May 2014, several former employees of Armadillo Aerospace formed a new company, Exos Aerospace, which was created to carry their former company's research into reusable commercial spacecraft. The new company set up their operations in one of Armadillo's former facilities at the Caddo Mills Municipal Airport, in Texas.[9] Exos completed acquisition of Armadillo assets in early 2015, and intended to begin launches of the Suborbital Active Rocket with Guidance (SARGE) in 2016 from Spaceport America in New Mexico. SARGE will be an enhanced Armadillo STIG-B.[10] The first flight of SARGE took place in 2018 from Spaceport America.
In September 2017, John Carmack retweeted a post about SpaceX rocket bloopers, along with his post "I showed all of our crashes at the beginning of Armadillo Aerospace, but everyone thought it was a terrible idea and talked me out of it." In the comment section, one person asked if there's chance of comeback for Armadillo Aerospace. He subsequently replied that there is the chance that he might "want to try at some point" with his own scheme, giving a sign that Armadillo Aerospace could someday return from hibernation mode.[11]
Research and development principles
The company placed a strong emphasis on a rapid build and test cycle. Armadillo Aerospace designed and built more than 12 vehicles which used about 50 engine designs for over 100 rocket flights.[12] Each design had several features in common. One was the use of modern computer technologies and electronics to simplify rocket control and reduce development costs. Another was the use of liquid propellants and VTVL to facilitate short launch-to-launch times.
Prize competitions
X-Prize competition
The company was a competitor for the Ansari X-Prize. Armadillo's X-Prize vehicle was unorthodox among modern rockets in that instead of using stabilization fins, which complicate the design and increase drag, Armadillo used an aerodynamically unstable design, where the computer controlled jet vanes based on feedback from fibre optic gyroscopes. Armadillo stated a preference for simplicity and reliability over performance, which was evident in its choice of hydrogen peroxide (50% concentration in water) and methanol as a mixed monopropellant for the vehicle. A monopropellant-based engine requires only a single tank as well as greatly simplified plumbing and other hardware.
Wirefly X-Prize Cup 2006
Armadillo Aerospace competed in the 2006 X PRIZE Cup. Armadillo Aerospace was the only competitor in the Lunar Lander Challenge. The company took two similar vehicles, Pixel and Texel, to the event. The vehicles narrowly failed to win the Level 1 prize, after making three dramatic attempts totalling over 5 minutes in the air,[13] finally crashing out on the final attempt. Persistent landing problems were the main cause of failure, with the undercarriage breaking several times, and landing slightly off the pad on one occasion due to guidance difficulties.
Rocket Racing League
In 2008, the Rocket Racing League announced that Armadillo Aerospace engines would be used in a second generation of X-Racer aircraft.[20] , the Rocket Racing League was utilizing a highly modified Velocity XL FG airframe and an Armadillo Aerospace 2,500 pound thrust liquid oxygen (LOX) and ethanol rocket engine in both the Mark-II X-Racer and Mark-III X-Racer demonstration vehicles.[21] The Rocket Racing league never got out of its early development mode, and no racing season was ever held.
Vehicles
Super Mod
The Super Mod reusable launch vehicle is a vertical-takeoff, vertical-landing (VTVL)[22] uncrewed rocket which was developed by Armadillo in 2010–2011. It was submitted to NASA as a potential suborbital vehicle for use as a suborbital reusable launch vehicle (sRLV) under NASA's Flight Opportunities Program.[22] It added aerodynamic fairings, partially extendable landing legs with lower aerodynamic drag, and systems improvements to the basic Mod vehicle structure and systems.
Stig
In late 2010, Armadillo started development of a new, longer rocket design created for lower-drag, higher-speed high-altitude flights, which they named Stig in homage of the Top Gear driver The Stig.[23] This rocket had similar systems, motors, and component weights as the Super Mod vehicles but was aerodynamically optimized for high-altitude flights with long 15 in diameter cylindrical tanks instead of larger spherical tanks.
Staff and funding
Armadillo was headed, and largely funded, by John Carmack, a developer of video games including the Doom and Quake series. During its early days, all of its employees (including Carmack) had other, full-time jobs and contributed their efforts twice weekly to Armadillo on a voluntary basis. Armadillo had a relatively small budget and was not supported by aerospace companies or agencies like NASA, ESA, or Boeing. Armadillo Aerospace publicly declared itself fully self-funded.[26]
In February 2006, Carmack stated that the program to date had cost slightly over $2 million.[27] Even by the standards of X-Prize candidates, this is a low budget. Scaled Composites is estimated to have spent $25 million on its SpaceShipOne development program.
On August 8, 2006, Armadillo Aerospace announced that it had reached a sponsorship deal with Nvidia. While details were sparse, John Carmack said, "There is a chance at this point that I may have written the last personal cheque I need to for Armadillo."
Future research
Carmack stated in his monthly reports and in forum posts that he expected his path to an orbital vehicle to include modular rockets similar to OTRAG technology. Lutz Kayser, the founding engineer of OTRAG, visited Armadillo in May 2006 and loaned Carmack some of their original research hardware.
"'I have been corresponding with Lutz for a few months now, and I have learned quite a few things. I seriously considered an OTRAG style massive-cluster-of-cheap-modules orbital design back when we had 98% peroxide (assumed to be a biprop with kerosene), and I have always considered it one of the viable routes to significant reduction in orbital launch costs. After really going over the trades and details with Lutz, I am quite convinced that this is the lowest development cost route to significant orbital capability. Eventually, reusable stages will take over, but I actually think that we can make it all the way to orbit on our current budget by following this path. The individual modules are less complicated than our current vehicles, and I am becoming more and more fond of high production methods over hand crafter prototypes.' -- June 2006 Armadillo Aerospace Update[32]"
See also
- Alt.space
- NewSpace
- List of private spaceflight companies
- Blue Origin
- Space Fellowship – hosts the official Armadillo Aerospace Forum
- Reusable Vehicle Testing – program of the Japanese Space Agency JAXA
- Commercial Spaceflight Federation
- Blue Origin New Shepard
External links
References
- Jeff Foust. Exos Seeks To Revive Armadillo Rocket Technology Space News, 11 May 2015, retrieved 2 November 2017^
- ^
- Armadillo Aerospace FAQ^