If you've ever played Black Ops 2, there is a plane called a "Hunter Killer" its rocket powered. Its fuselage is round, the wings spring open. So if it were to be placed in a tube that has one side blocked off. The plane would just launch from the pressure and its rocket power. That has to work, if it gets stuck, well, good luck. But how would the fuselage be made round from a sheet a foam?