Speaking of quality work and NASA, I saw a spare Lunar Rover, and any racing bike mechanic could have made it a lot lighter and a bit more rugged with a file. All their land vehicles look as if they were designed by people who have never gone off-road in their lives. However, I know that they have been riding around in airliners with fuselages that are pressurized tubes supporting themselves without a separate frame. The ISS astronauts live in pressurized tubes just floating in space without landing stresses, just an occasional very gentle push to correct the orbit. However, those tubes are bolted to a separate frame, like an old-fashioned pickup truck's bits, that weighs SEVEN TONS.