|
|
|
|
|
|
by simonh
2458 days ago
|
|
|
Those were balloon construction, which is a bit different. They were designed to be kept rigid by the internal pressure of the propellant. Actually the Centaur[0] is still built this way, using stainless steel. [0] https://en.wikipedia.org/wiki/Centaur_(rocket_stage) |
|
|