Little West (lunar crater) Little West (lunar crater) Little West is a small crater (30-meter diameter) in Mare Tranquillitatis on the Moon, east of the Apollo 11 landing site known as Tranquility Base. The Apollo 11 astronauts Neil Armstrong and Buzz Aldrin landed the Lunar Module (LM) "Eagle" approximately 60 meters west of Little West Crater on July 20, 1969. This is the crater Neil Armstrong mentions during his final descent onto the lunar surface. The south-west rim of the crater marks the farthest point that either astronaut traveled from the lunar module during their time on the lunar surface for the Apollo 11
Apollo command and service module a retrorocket to perform the deorbit burn for Earth orbital Apollo flights. The engine selected was the AJ10-137, which used Aerozine 50 as fuel and nitrogen tetroxide (NO) as oxidizer to produce of thrust. The thrust level was twice what was needed to accomplish the lunar orbit rendezvous (LOR) mission mode, because the engine was originally sized to lift the CSM off of the lunar surface in the direct ascent mode assumed in original planning (see Choosing a mission mode.) A contract was signed in April 1962 for the Aerojet-General company to start developing the engine, before the LOR mode