I worked with Masten Space on the development of Vertical Takeoff and Landing (VTOL) rocket vehicles. Early work included avionics, wiring, grounding, valve design, actuator design and controls.
A significant event was the Northrop Grumman Lunar Landing Challenge. During the first attempt for the first prize with a $1 million purse, the flight vehicle caught fire after landing due to a fuel leak. I assembled lead a team of volunteers to rewire the vehicle overnight. Masten employees were not involved as they needed sleep after prepping for 2 weeks. Without detailed knowledge of the vehicle design and with an equally inexperienced crew, we set up tools, procedures, and workspaces to repair the damaged wiring harnesses, engine damage, and install a drip-pan for the fuel leak from a trash can lid. With time running out, soldering was conducted on live circuits while systems checks were conducted. The vehicle was turned over to the Masten team at 6:00 the next morning. The second flight was successful, and the elated team is in the photo below.
YouTube link: Masten's Oct 29 flight for Level2 of Northrop Grumman Lunar Lander X PRIZE Challenge 2009