Encyclopedia Astronautica
Blue Scout Jr SLV-1B(m)


American suborbital launch vehicle.

Gross mass: 5,800 kg (12,700 lb).
Height: 12.00 m (39.00 ft).
Diameter: 0.79 m (2.59 ft).
Apogee: 1,000 km (600 mi).
First Launch: 1962.12.19.
Last Launch: 1964.08.29.
Number: 2 .

More... - Chronology...


Associated Countries
See also
  • Scout Solid-fuel, light payload, lower-cost launch vehicle developed by the Air Force and NASA in the late 1950's and used in a variety of configurations over thirty years. Launched from Cape Canaveral, Vandenberg, Wallops Island, and from Italy's equatorial San Marco platform off Kenya. Italy studied but did not develop subsequent upgraded versions. More...

Associated Manufacturers and Agencies
  • Vought American manufacturer of rockets and spacecraft. Vought, USA. More...

Associated Launch Sites
  • Vandenberg Vandenberg Air Force Base is located on the Central Coast of California about 240 km northwest of Los Angeles. It is used for launches of unmanned government and commercial satellites into polar orbit and intercontinental ballistic missile test launches toward the Kwajalein Atoll. More...
  • Vandenberg LC-A Scout, Javelin, Honest John, Black Brant, Astrobee, Asp, Seagull, Journeyman, Dac Roc launch complex. Launch Complex A, Naval Missile Facility, Point Arguello More...

Associated Stages
  • Alcor Solid propellant rocket stage. Loaded/empty mass 520/50 kg. Thrust 35.59 kN. Vacuum specific impulse 230 seconds. Masses, specific impulse estimated. More...
  • Antares 1A Solid propellant rocket stage. Loaded/empty mass 1,225/294 kg. Thrust 60.50 kN. Vacuum specific impulse 256 seconds. More...
  • Castor 1 Solid propellant rocket stage. Loaded/empty mass 3,852/535 kg. Thrust 286.00 kN. Vacuum specific impulse 247 seconds. More...

Blue Scout Jr SLV-1B(m) Chronology


1962 December 19 - . Launch Site: Vandenberg. Launch Complex: Vandenberg LC-A. LV Family: Scout. Launch Vehicle: Blue Scout Jr SLV-1B(m). LV Configuration: Blue Scout Jr SLV-1B(m) 21-1.
  • Ion Engine Test A Technology mission - . Nation: USA. Agency: USAF. Apogee: 2,000 km (1,200 mi). When the high-voltage power supplies were first turned-on, intermittent high-voltage breakdowns occurred, and the beam power supply became inoperative. Post-flight examination of the power supply indicated the high-voltage breakdowns were probably caused by pressure buildup in the primary propulsion unit due to gas vented from the spacecraft batteries. The primary propulsion unit high voltage section was not adequately vented to keep the pressure low enough. Engine thrusting was not accomplished in this test.

1964 August 29 - . 09:36 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg LC-A. LV Family: Scout. Launch Vehicle: Blue Scout Jr SLV-1B(m). LV Configuration: Blue Scout Jr SLV-1B(m) 21-2.
  • Ion Engine Test B Technology mission - . Nation: USA. Agency: USAF. Apogee: 2,000 km (1,200 mi). The launch was designed to provide about 30 minutes of flight above an altitude of 370 km. At seven minutes into the flight the engine was operated with ion beam extraction. Full beam current of 94 mA was achieved about 10 minutes later. During the course of engine operation, an electric field strength meter was used to infer payload floating potential relative to space. Spacecraft potential was about 1000 V negative during most of the engine operation with the filament neutralizer. The absolute value of payload potential was about ten times higher than anticipated, and it was suspected that there was inadequate neutralization of the ion beam. The contact ion engine operated for 19 minutes until spacecraft reentry into the atmosphere. In addition to withstanding the environmental rigors of space flight, the ion propulsion system demonstrated electromagnetic compatibility with other spacecraft subsystems and the ability to regulate and control a desired thrust level.

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