Trans-lunar injection
Videos
A trans-lunar injection is a propulsive maneuver used to send a spacecraft toward the Moon. Typical lunar transfer trajectories approximate Hohmann transfers, although low-energy transfers have also b
Artist's concept of NASA's Constellation stack performing the trans-lunar injection burn
S-IVB
Videos
The S-IVB was the third stage on the Saturn V and second stage on the Saturn IB launch vehicles. Built by the Douglas Aircraft Company, it had one J-2 rocket engine. For lunar missions it was fired tw
Trans-lunar injection
…nine Apollo missions, which landed the first humans on the Moon. For the Apollo lunar missions, TLI was performed by the restartable J-2 engine in the S-IVB third stage of the Saturn V rocket. This particular TLI burn lasted approximately 350 seconds, providing 3.05 to 3.25 km/s (10,000 to 10,600 ft/s) of…
S-IVB-206 which was used for the Skylab 2 flight
Cutaway drawing of the Saturn V S-IVB
Apollo 7 S-IVB in orbit over Cape Canaveral
Distant view of Apollo 7 S-IVB stage