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Evaluating Lockheed Martin's Reusable Lunar Lander and Orbital Propellant Depot Concept

22 Oct 2018, 21:35 UTC
Evaluating Lockheed Martin's Reusable Lunar Lander and Orbital Propellant Depot Concept
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Notional reusable lunar landing spacecraft on the lunar surface (Credit: Lockheed Martin) by Marcel F. Williams At the 69th International Astronautical Congress held in Bremen, Germany this month, Lockheed Martin unveiled a new reusable lunar crew lander concept. For simplicity, I'll designate the notional Lockheed Martin spacecraft discussed in this article as the R-LL (Reusable Lunar Lander). According to Lockheed Martin, the R-LL will have dry weight of 22 tonnes and be capable of storing up to 40 tonnes of LOX/LH2 propellant. The R-LL will have up to 5 km/s of delta-v capability.Lockheed Martin argues that the R-LL should be capable of crewed round trip missions to any area of the lunar surface from NASA's future Deep Space Gateway (DSG) which is to be located at a Near Rectilinear Halo Orbit (NRHO). Such round trip missions, they argue, would also be capable of delivering up to one tone of payload to the lunar surface in addition to a crew of four individual astronauts. While Lockheed Martin has been rather vague about the exact dimensions of the R-LL, they have indicated that it will consist of only two cryotanks and will be derived from the Centaur upper stage family and its ...

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