Author Topic: Gemini Spacecraft Preflight Checkout  (Read 1275 times)

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Gemini Spacecraft Preflight Checkout
« on: 11/07/2016 12:39 am »
Gemini Spacecraft Preflight Checkout: "All Systems Go" 1965 NASA

Jeff Quitney

Published on Nov 6, 2016

Explains procedures for Project Gemini spacecraft systems testing, and preflight checkout during the Gemini Program.

Project Gemini was the second human spaceflight program of NASA, the civilian space agency of the United States government. Project Gemini was conducted between projects Mercury and Apollo, with ten manned flights occurring in 1965 and 1966.

Its objective was to develop space travel techniques in support of Apollo, which had the goal of landing men on the Moon. Gemini achieved missions long enough for a trip to the Moon and back, perfected extra-vehicular activity (working outside a spacecraft), and orbital maneuvers necessary to achieve rendezvous and docking. All manned Gemini flights were launched from Cape Canaveral, Florida using the Titan II GLV launch vehicle...

NASA selected McDonnell Aircraft, which had been the prime contractor for the Project Mercury capsule, to build the Gemini capsule in 1961 and the first capsule was delivered in 1963. The spacecraft was 19 feet long and 10 feet wide with a launch weight of 8,490 pounds. The Gemini capsule first flew with a crew on March 23, 1965...

https://en.wikipedia.org/wiki/Gemini_3

Gemini 3 was the first manned mission in NASA's Gemini program, the second American manned space program. On March 23, 1965, astronauts Gus Grissom and John Young flew three low Earth orbits in their spacecraft, which they nicknamed Molly Brown. This was the ninth manned US spaceflight (including two X-15 flights over 100 kilometers), and the 17th world human spaceflight including eight Soviet flights. It was also the final manned flight controlled from Cape Kennedy Air Force Station in Florida, before mission control functions were shifted to a new control center located at the newly opened Manned Spacecraft Center in Houston, Texas...

On March 23, 1965 at 15:57:00 UTC, at the end of the first orbit, over Corpus Christi, Texas, a 1-minute 14 second burn of the Orbit Attitude and Maneuvering System (OAMS) engines gave a reverse delta-V of 15.5 meters (51 ft) per second, which changed the orbit from 161.2 by 224.2 kilometers (87.0 by 121.1 nautical miles) (with a period of 88.3 minutes), to an orbit of 158 by 169 kilometers (85 by 91 nmi) (period of 87.8 minutes). This was the first orbital maneuver made by any manned spacecraft...

Public domain film from NASA, slightly cropped to remove uneven edges, with the aspect ratio corrected, with the aspect ratio corrected, and 1-pass exposure & color correction applied (cannot be ideal in all scenes).
The soundtrack was also processed with volume normalization, noise reduction, clipping reduction, and/or equalization (the resulting sound, though not perfect, is far less noisy than the original).



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