American manufacturer of rocket engines. UM, USA.
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Associated Countries
Associated Engines
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LGIT UM electric rocket engine. 20 mN. Isp=1400s. Linear Gridless Ion Thruster, a two-stage device designed to incorporate the efficient ionization process of gridded ion thrusters and the high thrust density of Hall thrusters. More...
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UM Chronology
1948 April 2 - .
13:47 GMT - .
Launch Site:
White Sands.
Launch Complex:
White Sands LC33.
LV Family:
V-2.
Launch Vehicle:
V-2.
LV Configuration: V-2 25.
- UM-1 Aeronomy / ionosphere / solar ultraviolet mission - .
Nation: USA. Agency: USA; UM. Apogee: 144 km (89 mi). Summary: Launched 06:40 local time. Reached 144.4 km. Carried Density, pressure, temperature, composition, cosmic and solar radiation (Naval Research Lab) experiments for Signal Corps Engineering Lab, University of Michigan..
1948 September 3 - .
01:00 GMT - .
Launch Site:
White Sands.
Launch Complex:
White Sands LC33.
LV Family:
V-2.
Launch Vehicle:
V-2.
LV Configuration: V-2 33.
- UM-2 Grenades Aeronomy mission - .
Nation: USA. Agency: USA; UM. Apogee: 151 km (93 mi). Summary: Launched 18:00 local time. Reached 151 km. Carried Density, pressure, temperature, composition experiments for Signal Corps Engineering Lab, University of Michigan..
1949 April 11 - .
22:05 GMT - .
Launch Site:
White Sands.
Launch Complex:
White Sands LC33.
LV Family:
V-2.
Launch Vehicle:
V-2.
LV Configuration: V-2 50.
- UM-3 Aeronomy / solar x-ray / biology mission - .
Nation: USA. Agency: USA; UM. Apogee: 85 km (52 mi). Summary: Launched 15:05 local time. Reached 87.4 km. Carried Temp, composition, solar radiation (Naval Research Lab); biological experiments for Signal Corps Engineering Lab, University of Michigan..
1949 November 18 - .
16:03 GMT - .
Launch Site:
White Sands.
Launch Complex:
White Sands LC33.
LV Family:
V-2.
Launch Vehicle:
V-2.
LV Configuration: V-2 56.
- UM Sampling,Grenades Aeronomy / Chemical release mission - .
Nation: USA. Agency: USA; UM. Apogee: 124 km (77 mi). Summary: Launched 08:03 local time. Reached 124.2 km. Carried winds, composition, temperature; cosmic radiation (APL, John Hopkins); and solar radiation (Naval Research Lab) experiments for Signal Corps Engineering Lab, University of Michigan..
1961 June 1 - .
Launch Site:
Wallops Island.
LV Family:
Nike.
Launch Vehicle:
Nike Yardbird.
LV Configuration: Nike Yardbird Test Flight 1.
FAILURE: Failure.
- Sphere Test / aeronomy mission - .
Nation: USA. Agency: UM. Apogee: 10 km (6 mi).
1961 July 26 - .
Launch Site:
Wallops Island.
LV Family:
Nike.
Launch Vehicle:
Nike Yardbird.
LV Configuration: Nike Yardbird Test Flight 2.
FAILURE: Failure.
- Sphere Test / aeronomy mission - .
Nation: USA. Agency: UM. Apogee: 10 km (6 mi).
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