American lunar logistics spacecraft. Study 1966. The Douglas Company (DAC) proposed the "Lunar Application of a Spent S-IVB Stage (LASS)". The LASS concept required a landing gear on a S-IVB Stage.
The mission was an unmanned, direct-flight, using an existing lunar beacon to obtain a precise landing location. The LASS required either a highly throttleable J-2 type engine (J-2X) or a moderately throttleable J-2S with RL-10 engines added to provide proper landing control.
DAC studied several configurations and recommended a vertical lander with a payload package on top. Landed payloads in the order of 11,000 kg were claimed by DAC with the 1965 Saturn V capability. This payload was based on a more optimistic delta-V budget than used in other studies. However, the landed payload would still be substantial (7200 - 8600 kg) using the more conservative values. The LASS was related to contemporary Douglas SASSTO studies on use of a modified S-IVB as a reusable, recoverable upper stage or as a single-stage-to-orbit launch vehicle.
AKA: Lunar Application of a Spent S-IVB Stage.
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Lunar Landers Lunar lander design started with the British Interplanetary Society's concept of 1939, followed by Von Braun's 3964 tonne monster of 1953. It then settled down to more reasonably-sized variants. Landers came in three main types: two stage versions, with the first stage being a lunar crasher that would brake the spacecraft until just above the lunar surface, then separate, allowing the second stage to land on the surface; two stage versions consisting of a descent stage that went all the way to the surface, and an ascent stage that would take the crew from the surface to lunar orbit or on an earth-return trajectory; and single stage versions, using liquid oxygen/liquid hydrogen propellants. More...
Associated Manufacturers and Agencies
NASA American agency overseeing development of rockets and spacecraft. National Aeronautics and Space Administration, USA, USA. More...
Douglas American manufacturer of rockets, spacecraft, and rocket engines. Boeing Huntington Beach, Huntington Beach, CA, USA. More...
Bendersky, C, Manned Lunar Program Options - Mission Equipment - Case 230, Bellcomm memo for file, Sept. 29, 1967.
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