关于这张图
This image depicts the Saturn V S-IVB (third) stage for the Apollo 10 mission being removed from the Beta Test Stand 1 after its acceptance test at the Douglas Aircraft Company's Sacramento Test Operations (SACTO) facility. After the S-II (second) stage dropped away, the S-IVB (third) stage was ignited and burned for about two minutes to place itself and the Apollo spacecraft into the desired Earth orbit. At the proper time during this Earth parking orbit, the S-IVB stage was re-ignited to speed the Apollo spacecraft to escape velocity injecting it and the astronauts into a moon trajectory. De…
