{"id":12348,"date":"2024-10-30T12:05:28","date_gmt":"2024-10-30T16:05:28","guid":{"rendered":"https:\/\/zobi.alcowep.com\/bourtagshdrevxnls658739\/60-years-ago-the-first-flight-of-the-lunar-landing-research-vehicle\/"},"modified":"2024-10-30T12:05:28","modified_gmt":"2024-10-30T16:05:28","slug":"60-years-ago-the-first-flight-of-the-lunar-landing-research-vehicle","status":"publish","type":"post","link":"https:\/\/zobi.alcowep.com\/bourtagshdrevxnls658739\/60-years-ago-the-first-flight-of-the-lunar-landing-research-vehicle\/","title":{"rendered":"60 Years Ago: The First Flight of the Lunar Landing Research Vehicle"},"content":{"rendered":"

60 Years Ago: The First Flight of the Lunar Landing Research Vehicle<\/h2>\n

<\/p>\n

President John F. Kennedy\u2019s national commitment to land a man on the Moon and return him safely to the Earth before the end of the decade posed multiple challenges, among them how to train astronauts to land on the Moon, a place with no atmosphere and one-sixth the gravity on Earth. The Lunar Landing Research Vehicle<\/a> (LLRV) and its successor the Lunar Landing Training Vehicle<\/a> (LLTV) provided the training tool to simulate the final 200 feet of the descent to the lunar surface. The ungainly aircraft made its first flight on Oct. 30, 1964, at NASA\u2019s Flight Research Center (FRC), now NASA\u2019s Armstrong Flight Research Center<\/a> (AFRC) in California. The Apollo astronauts who completed landings on the Moon attributed their successes largely to training in these vehicles.<\/p>\n

\"The
The first Lunar Landing Research Vehicle silhouetted against the rising sun on the dry lakebed at Edwards Air Force Base in California\u2019s Mojave Desert.<\/em><\/p>\n

In December 1961, NASA Headquarters in Washington, D.C., received an unsolicited proposal from Bell Aerosystems in Buffalo, New York, for a design of a flying simulator to train astronauts on landing a spacecraft on the Moon. Bell\u2019s approach, using their design merged with concepts developed at NASA\u2019s FRC, won approval and the space agency funded the design and construction of two Lunar Landing Research Vehicles<\/a> (LLRV). At the time of the proposal, NASA had not yet chosen the method for getting to and landing on the Moon, but once NASA decided on Lunar Orbit Rendezvous<\/a> in July 1962, the Lunar Module\u2019s (LM) flying characteristics matched Bell\u2019s proposed design closely enough that the LLRV served as an excellent trainer.\u00a0<\/p>\n

\"View \"View
Two views of the first Lunar Landing Research Vehicle shortly after its arrival and prior to assembly at the Flight Research Center, now NASA\u2019s Armstrong Flight Research Center, in California.<\/em><\/p>\n

Bell Aerosystems delivered the LLRV-1 to FRC on April 8, 1964, where it made history as the first pure fly-by-wire aircraft to fly in Earth\u2019s atmosphere. Its design relied exclusively on an interface with three analog computers to convert the pilot\u2019s movements to signals transmitted by wire and to execute his commands. The open-framed LLRV used a downward pointing turbofan engine to counteract five-sixths of the vehicle\u2019s weight to simulate lunar gravity, two rockets provided thrust for the descent and horizontal translation, and 16 LM-like thrusters provided three-axis attitude control. The astronauts could thus simulate maneuvering and landing on the lunar surface while still on Earth. The LLRV pilot could use an aircraft-style ejection seat to escape from the vehicle in case of loss of control.<\/p>\n

\"The \"NASA
Left: The Lunar Landing Research Vehicle-1 (LLRV-1) during an engine test at NASA\u2019s Flight Research Center (FRC), now NASA\u2019s Armstrong Fight Research Center, in California\u2019s Mojave Desert. Right: NASA chief test pilot Joseph \u201cJoe\u201d A. Walker, left, demonstrates the features of LLRV-1 to President Lyndon B. Johnson during his visit to FRC.<\/em><\/p>\n

Engineers conducted numerous tests to prepare the LLRV for its first flight. During one of the engine tests, the thrust generated was higher than anticipated, lifting crew chief Raymond White and the LLRV about a foot off the ground before White could shut off the engines. On June 19, during an official visit to FRC, President Lyndon B. Johnson inspected the LLRV featured on a static display. The Secret Service would not allow the President to sit in the LLRV\u2019s cockpit out of an overabundance of caution since the pyrotechnics were installed, but not yet armed, in the ejection seat. Following a Preflight Readiness Review held Aug. 13 and 14, managers cleared the LLRV for its first flight.<\/p>\n

\"NASA \"Walker
Left: NASA chief test pilot Joseph \u201cJoe\u201d A. Walker during the first flight of the Lunar Landing Research Vehicle (LLRV). Right: Walker shortly after the first LLRV flight.<\/em><\/p>\n

In the early morning of Oct. 30, 1964, FRC chief pilot Joseph \u201cJoe\u201d A. Walker arrived at Edwards Air Force Base\u2019s (AFB) South Base to attempt the first flight of the LLRV. Walker, a winner of both the Collier Trophy and the Harmon International Trophy, had flown nearly all experimental aircraft at Edwards including 25 flights in the X-15 rocket plane<\/a>. On two of his X-15 flights, Walker earned astronaut wings by flying higher than 62 miles, the unofficial boundary between the Earth\u2019s atmosphere and space. After strapping into the LLRV\u2019s ejection seat, Walker ran through the preflight checklist before advancing the throttle to begin the first flight. The vehicle rose 10 feet in the air, Walker performed a few small maneuvers and then made a soft landing after having flown for 56 seconds. He lifted off again, performed some more maneuvers, and landed again after another 56 seconds. On his third flight, the vehicle\u2019s electronics shifted into backup mode and he landed the craft after only 29 seconds. Walker seemed satisfied with how the LLRV handled on its first flights.<\/p>\n

\"Lunar \"NASA
Left: Lunar Landing Research Vehicle-2 (LLRV-2) during one of its six flights at the Flight Research Center, now NASA\u2019s Armstrong Flight Research Center, in California in January 1967. Right: NASA astronaut Neil A. Armstrong with LLRV-1 at Ellington Air Force Base in March 1967.<\/em><\/p>\n

Walker took LLRV-1 aloft again on Nov. 16 and eventually completed 35 test flights with the vehicle. Test pilots Donald \u201cDon\u201d L. Mallick, who completed the first simulated lunar landing profile flight during the LLRV\u2019s 35th<\/sup> flight on Sept. 8, 1965, and Emil E. \u201cJack\u201d Kluever, who made his first flight on Dec. 13, 1965, joined Walker to test the unique aircraft. Joseph S. \u201cJoe\u201d Algranti<\/a> and Harold E. \u201cBud\u201d Ream, pilots at the Manned Spacecraft Center (MSC), now NASA\u2019s Johnson Space Center (JSC) in Houston, travelled to FRC to begin training flights with the LLRV in August 1966. Workers at FRC assembled the second vehicle, LLRV-2, during the latter half of 1966. In December 1966, after 198 flights workers transferred LLRV-1 to Ellington AFB near MSC for the convenience of astronaut training, and LLRV-2 followed in January 1967 after completing six test flights at FRC. The second LLRV made no further flights, partly because the three Lunar Landing Training Vehicles<\/a> (LLTVs), more advanced models that better simulated the LM\u2019s flying characteristics, began to arrive at Ellington in October 1967. Neil A. Armstrong<\/a> completed the first astronaut flights aboard LLRV-1 on Mar. 23, 1967, and flew 21 flights before ejecting from the vehicle on May 6, 1968<\/a>, seconds before it crashed. He later completed his lunar landing certification flights<\/a> using LLTV-2 in June 1969, one month before peforming the actual feat on the Moon<\/a>.<\/p>\n

\"Apollo \"Apollo \"Apollo
Left: Apollo 11 Commander Neil A. Armstrong prepares to fly a lunar landing profile in Lunar Landing Training Vehicle-2 (LLTV-2) in June 1969. Middle: Apollo 12 Commander Charles \u201cPete\u201d Conrad prepares to fly LLTV-2 in July 1969. Right: Apollo 14 Commander Alan B. Shepard flies LLTV-3 in December 1970.<\/em><\/p>\n

All Apollo Moon landing mission commanders and their backups completed their lunar landing certifications using the LLTV, and all the commanders attributed their successful landings to having trained in the LLTV. Apollo 8<\/a> astronaut William A. Anders<\/a>, who along with Armstrong completed some of the early LLRV test flights, called the training vehicle \u201ca much unsung hero of the Apollo program.\u201d During the flight readiness review in January 1970 to clear LLTV-3 for astronaut flights, Apollo 11<\/a> Commander Armstrong and Apollo 12<\/a> Commander Charles \u201cPete\u201d Conrad<\/a>, who had by then each completed manual landings on the Moon, spoke positively of the LLTV\u2019s role in their training. Armstrong\u2019s overall impression of the LLTV: \u201cAll the pilots \u2026 thought it was an extremely important part of their preparation for the lunar landing attempt,\u201d adding \u201cIt was a contrary machine, and a risky machine, but a very useful one.\u201d Conrad emphasized that were he \u201cto go back to the Moon again on another flight, I personally would want to fly the LLTV again as close to flight time as possible.\u201d During the Apollo 12 technical debriefs, Conrad stated the \u201cthe LLTV is an excellent training vehicle for the final phases. I think it\u2019s almost essential. I feel it really gave me the confidence that I needed.\u201d During the postflight debriefs, Apollo 14<\/a> Commander Alan B. Shepard<\/a> stated that he \u201cdid feel that the LLTV contributed to my overall ability to fly the LM during the landing.\u201d<\/p>\n

\"Apollo \"Apollo \"Apollo
Left: Apollo 15 Commander David R. Scott flies Lunar Landing Training Vehicle-3 (LLTV-3) in June 1971. Middle: Apollo 16 Commander John W. Young prepares to fly LLTV-3 in March 1972. Right: Apollo 17 Commander Eugene A. Cernan prepares for a flight aboard LLTV-3 in October 1972.<\/em><\/p>\n

David R. Scott<\/a>, Apollo 15<\/a> commander, stated in the final mission report that \u201cthe combination of visual simulations and LLTV flying provided excellent training for the actual lunar landing. Comfort and confidence existed throughout this phase.\u201d In the Apollo 15 postflight debrief, Scott stated that he \u201cfelt very comfortable flying the vehicle (LM) manually, because of the training in the LLTV, and there was no question in my mind that I could put it down where I wanted to. I guess I can\u2019t say enough about that training. I think the LLTV is an excellent simulation of the vehicle.\u201d Apollo 16<\/a> Commander John W. Young<\/a> offered perhaps the greatest praise for the vehicle just moments after landing on the lunar surface: \u201cJust like flying the LLTV.\u00a0Piece of cake.\u201d Young reiterated during the postflight debriefs that \u201cfrom 200 feet on down, I never looked in the cockpit. It was just like flying the LLTV.\u201d Apollo 17<\/a> Commander Eugene A. Cernan<\/a> stated in the postflight debrief that \u201cthe most significant part of the final phases from 500 feet down, \u2026 was that it was extremely comfortable flying the bird. I contribute (sic) that primarily to the LLTV flying operations.\u201d<\/p>\n

\"Workers \"Lunar
Left: Workers move Lunar Landing Research Vehicle-2 from NASA\u2019s Armstrong Flight Research Center for display at the Air Force Test Flight Museum at Edwards Air Force Base. Right: Lunar Landing Training Vehicle-3 on display outside the Teague Auditorium at NASA\u2019s Johnson Space Center in Houston.<\/em><\/p>\n

In addition to playing a critical role in the Moon landing program, these early research and test vehicles aided in the development of digital fly-by-wire technology for future aircraft. LLRV-2 is on display at the Air Force Flight Test Museum<\/a> at Edwards AFB (on loan from AFRC). Visitors can view LLTV-3 suspended from the ceiling in the lobby of the Teague Auditorium at JSC.<\/p>\n

The monograph Unconventional, Contrary, and Ugly: The Lunar Landing Research Vehicle<\/a> provides an excellent and detailed history of the LLRV.<\/p>\n

\n
\n
\n
\n

Explore More<\/h2>\n<\/div><\/div>\n
\n
\n\t\t\t\t\t\t<\/p>\n
\n
\n
\"\"<\/figure>\n<\/p><\/div>\n<\/p><\/div>\n
\n
11 min read<\/div>\n
\n

35 Years Ago: STS-34 Sends Galileo on its Way to Jupiter<\/h3>\n<\/div>\n
\n\t\t\t\t\t\t\t\t\t
\n\t\t\t\t\t\t\t\t\t\t<\/path><\/path><\/g><\/g><\/svg>
\n\t\t\t\t\t\t\t\t\t\tArticle<\/span>
\n\t\t\t\t\t\t\t\t\t<\/span>
\n\t\t\t\t\t\t\t\t\t
\n\t\t\t\t\t\t\t\t\t\t1 week ago\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t<\/div>\n<\/p><\/div>\n

\t\t\t\t\t\t<\/a>\n\t\t\t\t\t<\/div>\n

\n\t\t\t\t\t\t<\/p>\n
\n
\n
\"\"<\/figure>\n<\/p><\/div>\n<\/p><\/div>\n
\n
12 min read<\/div>\n
\n

Five Years Ago: First All Woman Spacewalk<\/h3>\n<\/div>\n
\n\t\t\t\t\t\t\t\t\t
\n\t\t\t\t\t\t\t\t\t\t<\/path><\/path><\/g><\/g><\/svg>
\n\t\t\t\t\t\t\t\t\t\tArticle<\/span>
\n\t\t\t\t\t\t\t\t\t<\/span>
\n\t\t\t\t\t\t\t\t\t
\n\t\t\t\t\t\t\t\t\t\t2 weeks ago\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t<\/div>\n<\/p><\/div>\n

\t\t\t\t\t\t<\/a>\n\t\t\t\t\t<\/div>\n

\n\t\t\t\t\t\t<\/p>\n
\n
\n
\"\"<\/figure>\n<\/p><\/div>\n<\/p><\/div>\n
\n
6 min read<\/div>\n
\n

Cassini Mission: 5 Things to Know About NASA Lewis\u2019 Last Launch<\/h3>\n<\/div>\n
\n\t\t\t\t\t\t\t\t\t
\n\t\t\t\t\t\t\t\t\t\t<\/path><\/path><\/g><\/g><\/svg>
\n\t\t\t\t\t\t\t\t\t\tArticle<\/span>
\n\t\t\t\t\t\t\t\t\t<\/span>
\n\t\t\t\t\t\t\t\t\t
\n\t\t\t\t\t\t\t\t\t\t2 weeks ago\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t<\/div>\n<\/p><\/div>\n

\t\t\t\t\t\t<\/a>\n\t\t\t\t\t<\/div>\n<\/p><\/div>\n<\/section><\/div>\n

Powered by WPeMatico<\/a><\/small><\/p>\n

Get The Details…<\/a>
\nKelli Mars <\/p>\n","protected":false},"excerpt":{"rendered":"

President John F. Kennedy\u2019s national commitment to land a man on the Moon and return him safely to the Earth before the end of the decade posed multiple challenges, among them how to train astronauts to land on the Moon, a place with no atmosphere and one-sixth the gravity on Earth. The Lunar Landing Research [\u2026] Continue reading → <\/span><\/a><\/p>\n

<\/div>
Spread the love<\/div>
<\/path><\/svg><\/span><\/a><\/path><\/svg><\/span><\/a><\/path><\/svg><\/span><\/a><\/path><\/svg><\/span><\/a><\/path><\/path><\/svg><\/span><\/a><\/path><\/path><\/path><\/svg><\/span><\/a><\/path><\/g><\/path><\/g><\/circle><\/g><\/g><\/svg><\/span><\/a><\/path><\/g><\/svg><\/span><\/a><\/div>
<\/div><\/div>
<\/div>","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_coblocks_attr":"","_coblocks_dimensions":"","_coblocks_responsive_height":"","_coblocks_accordion_ie_support":"","footnotes":""},"categories":[19],"tags":[34],"class_list":["post-12348","post","type-post","status-publish","format-standard","hentry","category-astronomy_astronomia","tag-astronomy"],"_links":{"self":[{"href":"https:\/\/zobi.alcowep.com\/bourtagshdrevxnls658739\/wp-json\/wp\/v2\/posts\/12348","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/zobi.alcowep.com\/bourtagshdrevxnls658739\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/zobi.alcowep.com\/bourtagshdrevxnls658739\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/zobi.alcowep.com\/bourtagshdrevxnls658739\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/zobi.alcowep.com\/bourtagshdrevxnls658739\/wp-json\/wp\/v2\/comments?post=12348"}],"version-history":[{"count":0,"href":"https:\/\/zobi.alcowep.com\/bourtagshdrevxnls658739\/wp-json\/wp\/v2\/posts\/12348\/revisions"}],"wp:attachment":[{"href":"https:\/\/zobi.alcowep.com\/bourtagshdrevxnls658739\/wp-json\/wp\/v2\/media?parent=12348"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/zobi.alcowep.com\/bourtagshdrevxnls658739\/wp-json\/wp\/v2\/categories?post=12348"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/zobi.alcowep.com\/bourtagshdrevxnls658739\/wp-json\/wp\/v2\/tags?post=12348"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}