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Contact: Patrick Louden
Tel: (561) 796-6793
Web Site: www.pw.utc.com
Pratt & Whitney Space Propulsion - Booster Separation Motors (BSMs)
Booster separation motors (BSMs) are vital for NASA’s Space Shuttle launches.
Approximately two minutes into flight, 16 of these small but powerful motors (4 each
mounted on the aft and forward sections of the two solid motor boosters) execute split
second timing to provide the precise thrust required for safe separation of the spent
boosters away from the main fuel tank and the orbiter. During more than 100 space
shuttle missions, every one of the more than 1,700 BSMs has performed flawlessly.
P&W has been the sole supplier to the Shuttle program since its inception in the late
1970s, first directly to NASA in the early 1980s and then to the NASA subcontractors
USBI (up to late 1999) and United Space Alliance (USA), which is the current
subcontractor.
Characteristics (100% power)
Average thrust : 18,500 lb
Length: 31 in.
Diameter: 13 in.
Loaded weight: 167 lb
Action Time: 0.805 sec
Total impulse: 14,000 lb sec | 
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发表于 2010-12-3 04:34:06
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发表于 2014-11-24 21:33:57