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The propulsion system for the descent stage of the lunar module was designed to transfer the vehicle, containing two crewmen, from a 60-nautical-mile (110 km) circular lunar parking orbit to an elliptical descent orbit with a pericynthion of 50,000 feet (15,000 m), then provide a powered descent to the lunar surface, with hover time above the lunar surface to select the exact landing site.
The ascent propulsion system (APS) or lunar module ascent engine (LMAE) is a fixed-thrust hypergolic rocket engine developed by Bell Aerosystems for use in the Apollo Lunar Module ascent stage. It used Aerozine 50 fuel, and N 2 O 4 oxidizer.
The Extended Lunar Module (ELM) used on the final three "J-class missions"—Apollo 15, 16, and 17—was upgraded. The descent engine thrust was increased by the addition of a 10-inch (250 mm) extension to the engine bell, and the descent propellant tanks were enlarged. A waste storage tank was added to the descent stage, with plumbing from the ...
The Blue Engine 7 is a liquid hydrogen/oxygen dual expander cycle engine for use with the Blue Moon family of lunar landers. The company utilizes additive manufacturing in the development process and it is meant to generate 10,000 lbf (4.5 tf) of thrust, serving as both the ascent and descent engines for Blue Moon.
Gravitational acceleration on the moon is roughly six times weaker than it is on Earth, so the Lunar Descent Engine didn't have to work all that hard: closer to 6,000 pounds of thrust, rather than ...
Apollo Lunar Module. The Apollo Lunar Module was a separate vehicle designed to land on the Moon and return to lunar orbit, and was the first true "spaceship" since it flew solely in the vacuum of space. It consisted of a descent stage and an ascent stage. It supplied life support systems for two astronauts for up to four to five days on the ...
LK (left) and Apollo Lunar Module (right). A lunar module is a lunar lander designed to allow astronauts to travel between a spacecraft in lunar orbit and the lunar surface. As of 2021, the Apollo Lunar Module is the only lunar module to have ever been used in human spaceflight, completing six lunar landings from 1969 to 1972 during the United States' Apollo program.
The Apollo 17 lunar lander module left behind by US astronauts on the moon’s surface could be causing moonquakes, ... DOJ proposing to buy Google Chrome for $20 billion if judge OKs sale: Reports.