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From Wikipedia, the free encyclopedia

Little Joe 5
Little Joe 5 prelaunch.jpg
Little Joe 5 prepared for launch, Wallops Island
Mission type Abort test
Operator NASA
Mission duration 2 minutes, 22 seconds[1]
Distance travelled 23 kilometres (14 mi)[1]
Apogee 16.3 kilometres (10.1 mi)[1]
Spacecraft properties
Spacecraft Mercury No.3
Manufacturer McDonnell Aircraft
Launch mass 1,141 kilograms (2,515 lb)[1]
Start of mission
Launch date November 8, 1960, 15:18 (1960-11-08UTC15:18Z) UTC[1][2]
Rocket Little Joe
Launch site Wallops LA-1
End of mission
Landing date November 8, 1960, 15:20 (1960-11-08UTC15:21Z) UTC[1][2]

Mercury insignia.png

Little Joe 5 was an unmanned atmospheric test flight of the Mercury spacecraft, conducted as part of the U.S. Mercury program. The objective was to test a production Mercury capsule (#3) and the Launch Escape System during an ascent abort at maximum dynamic pressure. The mission was launched November 8, 1960, from Wallops Island, Virginia. Sixteen seconds after liftoff, the escape rocket and the tower jettison rocket both fired prematurely. Furthermore, the booster, capsule and escape tower failed to separate as intended. The entire stack was destroyed on impact with the Atlantic Ocean.[3] The Little Joe 5 flew to an apogee of 10.1 miles (16.2 km) and a range of 13 miles (20.9 km). Some capsule and booster debris was recovered from the ocean floor for post flight analysis.

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Transcription

See also

References

 This article incorporates public domain material from websites or documents of the National Aeronautics and Space Administration.

  1. ^ a b c d e f "LJ-5 (9)". Kennedy. December 8, 2000. Archived from the original on October 28, 2009. Retrieved January 16, 2010. 
  2. ^ a b Wade, Mark (July 31, 2008). "Little Joe". Encyclopedia Astronautica. Archived from the original on January 7, 2010. Retrieved January 16, 2010. 1960 November 8–15:18 GMT - Wallops Island LA1. LV Model: Little Joe 1 2P . Little Joe 1-2P LJ-5 FAILURE: At 15.4 seconds the escape rocket motor and tower jettison motor ignited prematurely. Mercury LJ-5 Agency: NASA. Apogee: 16 km (9 mi). Little Joe 5 with a Mercury production spacecraft was launched from Wallops Island to test the spacecraft in an abort simulating the most severe launch conditions. At 15.4 seconds after liftoff, the escape rocket motor and tower jettison motor ignited prematurely. Booster, capsule, and tower remained mated through ballistic trajectory until destroyed on impact. 
  3. ^ NASA SP-4201

External links

This page was last edited on 3 January 2018, at 21:33
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