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Wallops Island LA4
Part of Wallops Island Family
Tomahawk Sandia, Sergeant, Little Joe, Journeyman launch complex. Launch Area 4

First Launch: 1961-04-28. Last Launch: 1970-10-09. Number: 6 . Longitude: -75.4701 deg. Latitude: 37.8508 deg.



Spacecraft: Mercury. Launch Vehicles: Little Joe 1 4C, Little Joe 1, Journeyman, Nike Tomahawk, Castor. Launch Sites: Wallops Island.

1961 April 28 - . 14:03 GMT - . Launch Site: Wallops Island. Launch Complex: Wallops Island LA4. Launch Vehicle: Little Joe 1.
  • Mercury LJ-5B - . Nation: USA. Agency: NASA. Program: Mercury. Spacecraft: Mercury. Apogee: 4.00 km (2.40 mi).

    Little Joe 5B (LJ-5B) was launched from Wallops Island to test the Mercury escape system under maximum dynamic pressure conditions. At the time of lift-off, one of the launch vehicle rocket motors did not ignite until after 4 seconds had elapsed. This delay caused the launch vehicle to pitch into a lower trajectory than had been planned, with a result that the abort maneuver experienced greater dynamic pressures than had been specified in the flight test plan. Other than this, all other sequential systems operated according to plan, and after landing, a normal helicopter recovery was accomplished. Thus, all test objectives were met and were actually exceeded because the spacecraft withstood the higher dynamic pressures.


1965 June 30 - . 05:33 GMT - . Launch Site: Wallops Island. Launch Complex: Wallops Island LA4. Launch Vehicle: Journeyman.
  • Radio astronomy mission - . Nation: USA. Agency: NASA. Apogee: 1,770 km (1,090 mi).

1970 March 7 - . 18:00 GMT - . Launch Site: Wallops Island. Launch Complex: Wallops Island LA4. LV Family: Tomahawk. Launch Vehicle: Nike Tomahawk.
  • Thermosphere Eclipse aeronomy mission - . Nation: USA. Agency: NASA. Apogee: 289 km (179 mi).

1970 March 7 - . 18:27 GMT - . Launch Site: Wallops Island. Launch Complex: Wallops Island LA4. LV Family: Tomahawk. Launch Vehicle: Nike Tomahawk.
  • Thermosphere Eclipse aeronomy mission - . Nation: USA. Agency: NASA. Apogee: 290 km (180 mi).

1970 March 7 - . 18:37 GMT - . Launch Site: Wallops Island. Launch Complex: Wallops Island LA4. LV Family: Tomahawk. Launch Vehicle: Nike Tomahawk.
  • Eclipse aeronomy mission - . Nation: USA. Agency: NASA. Apogee: 290 km (180 mi).

1970 October 9 - . Launch Site: Wallops Island. Launch Complex: Wallops Island LA4. LV Family: Sergeant. Launch Vehicle: Castor.
  • SPED II re-entry vehicle test flight - . Nation: USA. Agency: NASA. Apogee: 85 km (52 mi).


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