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| title | chunk | source | category | tags | date_saved | instance |
|---|---|---|---|---|---|---|
| Apollo program training | 2/3 | https://en.wikipedia.org/wiki/Apollo_program_training | reference | science, encyclopedia | 2026-05-05T12:33:03.169458+00:00 | kb-cron |
=== Lunar landing === The Lunar Landing Research Vehicle (LLRV), built by Bell Aerosystems, was a free-flying vehicle that used a gimbaled turbofan engine to cancel five-sixths of its weight, simulating one-sixth-g conditions. Hydrogen peroxide thrusters provided attitude control and supplemental lift, giving the pilot six degrees of freedom comparable to those of the Lunar Module (LM). Two LLRVs were built and tested at what is now NASA's Flight Research Center at Edwards Air Force Base. On 6 May 1968, Neil Armstrong ejected from LLRV-1 seconds before it crashed after its attitude-control fuel was depleted; he was uninjured. Three improved Lunar Landing Training Vehicles (LLTVs) were delivered to Ellington Field near Houston beginning in late 1967. Only mission commanders and their backups flew the LLTV, owing to limited vehicle availability, cost, and safety concerns. Two of the three LLTVs were destroyed in crashes (December 1968 and January 1971); both pilots ejected safely. Gene Cernan's flight on 13 November 1972—three weeks before Apollo 17's launch—was the LLTV's final mission. Armstrong later stated that the LM "flew very much like the Lunar Landing Training Vehicle" and credited the LLTV with the confidence he needed for the Apollo 11 landing.
=== Other simulators === NASA employed several additional simulation facilities:
The Lunar Landing Research Facility at Langley Research Center used a gantry-mounted partial-gravity rig to allow full-scale LM descent and touchdown practice. The Reduced Gravity Walking Simulator, also at Langley, suspended test subjects sideways against a tilted wall so that their legs bore only one-sixth of their body weight. Twenty-four astronauts used the device; it was also demonstrated on television by Walter Cronkite in 1968. The Lunar Orbit and Landing Approach (LOLA) simulator at Langley projected a high-resolution model of the lunar surface beneath a moving camera to train crews in visual landmark recognition during the final descent phase. The Lunar Module Mission Simulator (LMMS) at MSC was a high-fidelity interior mockup replicating LM controls and displays, used extensively for powered-descent and ascent procedures. The Rendezvous Docking Simulator at Langley trained crews in the orbital mechanics of rendezvous and docking between the Command Module and the LM.
== Survival training == Survival training prepared crews for the possibility of an off-target or emergency landing in a remote environment. The program was divided into desert, jungle, and water phases, each combining classroom instruction, demonstrations, and multi-day field exercises.
=== Desert ===
Desert survival courses began with the Mercury Seven in 1960 at Stead Air Force Base north of Reno, Nevada, where daytime temperatures exceeded 45 °C (113 °F). After classroom instruction, astronauts were flown to the Carson Sink and left in groups for three days. They learned to fashion shelters and loose clothing from parachute material, conserve water, and exploit lower sub-surface temperatures by digging into the ground. In August 1964, fourteen astronauts—including Armstrong, Aldrin, and Collins—completed the final course at Stead before the school relocated to Fairchild Air Force Base in Washington state.
=== Jungle ===
Jungle survival training took place at the U.S. Air Force Tropic Survival School at Albrook Air Force Base in the Panama Canal Zone. After several days of classroom instruction, astronauts spent two nights and three days in the Panamanian jungle, where they practiced finding and purifying water, foraging for edible plants, and building lean-to shelters. Indigenous Emberá instructors led by Chief Manuel Antonio Zarco taught techniques drawn from centuries of jungle habitation. A June 1963 session was the first to include astronauts from the Mercury, Gemini, and Apollo selections.
== Water egress == Because all Apollo spacecraft returned to Earth via ocean splashdown, water egress training was a critical component of mission preparation. Training used boilerplate Command Module BP-1102A, an aluminum mock-up built in-house by MSC's Landing and Recovery Division. Crews first practised egress procedures in a water tank, then progressed to open-water sessions in the Gulf of Mexico aboard the NASA motor vessel Retriever. They rehearsed exiting the spacecraft in both the stable upright ("Apex-up" or Stable I) position and the inverted ("Apex-down" or Stable II) configuration, the latter while fully suited. Egress training totalled approximately 13 hours per astronaut. For Apollo 11 and subsequent missions, procedures also incorporated biological isolation garments (BIGs) and decontamination protocols to guard against possible lunar back-contamination.
== Extravehicular activity == Extravehicular activity (EVA) training prepared astronauts for surface operations including sample collection, instrument deployment, photography, and verbal descriptions of geological features. Crews rehearsed deploying the Apollo Lunar Surface Experiments Package (ALSEP)—a suite of geophysical instruments powered by a radioisotope thermoelectric generator—at simulated lunar surfaces at MSC, KSC, and the Cinder Lake fields. The later missions (Apollo 15–17) added LRV driving practice and more complex traverses with multiple geology stations.
=== Neutral buoyancy ===