P 72

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P 72

Part of P

RM 20
Credit: Manufacturer Image

American military technology satellite. Unknown satellite lost on a single Atlas launch failure. Evidently not repeated.

Status: Operational 1975. First Launch: 1975-04-13. Last Launch: 1975-04-13. Number: 1 .

Family: Military technology sat, Technology. Country: USA. Launch Vehicles: Atlas, Atlas F. Launch Sites: Vandenberg, Vandenberg SLC3W. Agency: USAF. Bibliography: 126, 278.

1975 April 13 - . 00:51 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC3W. LV Family: Atlas. Launch Vehicle: Atlas F. FAILURE: First stage failure due to explosion in flame pit at lift-off.. Failed Stage: 1.

P 72-2 - . Nation: USA. Agency: USAF. Class: Technology. Type: Military technology satellite. Spacecraft Bus: P. Spacecraft: P 72. Decay Date: 1975-04-12 .
Space Test Program flight P72-2 was launched; it carried two infrared radiometers and three other payloads. The launch failed when the Atlas F launch vehicle malfunctioned. A lack of deluge water and collection in the flame bucket of a kerosene/liquid oxygen gel led to the explosion of the gel on lift-off, damaging one of the Atlas engines and leading to complete engine failure during the ascent.

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