Wernher von Braun's historic talk at Huntsville on June 7, 1962, when he endorsed “lunar-orbit rendezvous” (LOR) as the mode for landing on the Moon, has long been seen as one of the most critical dates in the Apollo program.
In Lunar Orbit - (FILE) -- With a half-Earth in the background, the Lunar Module Eagle's ascent stage with Moon-walking Astronauts Neil Armstrong and Edwin Aldrin Jr. aboard approaches for a rendezvous with the Apollo Command Module on Monday, July 21,1969 manned by Michael Collins. Manned Lunar Landing Through Use of Lunar Orbit Rendezvous.
Image at left: NASA Langley's rendezvous and docking simulator, built to support the Gemini and Apollo programs, at work in a multiple-exposure image. The lunar rendezvous method can be readily paralleled with some other program at least total program cost.
Low lunar orbit (LLO) are orbits below 100 km (62 mi) altitude. Lunar Orbit Rendezvous and the Apollo Program In the opinion of many space historians, NASA Langley's most important contribution to the Apollo Program was its development of the lunar-orbit rendezvous (LOR) concept. Those familiar with NASA history know that Lunar Orbit Rendezvous was the final choice.  They are of particular interest in exploration of the Moon, but suffer from gravitational perturbation effects that make most unstable, and leave only a few orbital inclinations possible for indefinite frozen orbits , useful for long-term stays in LLO. But this mode wasn’t an obvious choice, said NASA engineer Jerry Woodfill. Lunar Orbit Rendezvous, an album by LOR on Spotify. With three burns, including the burn for the transition on the circular reference orbit, the UpSt transfers to the target orbit or ICO, which is co-elliptical to the OS orbit … Introduction . John Houbolt was an aerospace engineer at NASA during the early stages of the Apollo Program.During this time, he was the head of the Rendezvous Committee and the assistant chief of the Dynamics Load Division. Lunar-Orbit Rendezvous Awards and Nominations. Houbolt was the primary advocate of using lunar orbit rendezvous for landing a spacecraft on the moon. According to NASA’s current plan, the landing vehicle will launch on a commercial rocket without anyone on-board, then maneuver into lunar orbit to await the arrival of the Orion crew. Of the two, LOR offered the quickest path to a landing because of its dedicated landing module, but it was … The plan.- The first attachment outlines in brief the plan by which we may accomplish a manned lunar landing through use of a lunar rendezvous, and shows a number of schemes for doing this by means of … And on July 20, 1969, the day humans landed on the moon, where was John Houbolt?