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Development of the Algol III solid rocket motor for SCOUT.The design and performance of a motor developed for the first stage of the NASA SCOUT-D and E launch vehicles are discussed. The motor delivers a 30% higher total impulse and a 35 to 45% higher payload mass capability than its predecessor, the Algol IIB. The motor is 45 in. in diameter, has a length-to-diameter ratio of 8:1 and delivers an average 100,000-lb thrust for an action time of 72 sec. The motor design features a very high volumetrically loaded internal-burning charge of 17% aluminized polybutadiene propellant, a plasma-welded and heat-treated steel alloy case, and an all-ablative plastic nose liner enclosed in a steel shell. The only significant development problem was the grain design tailoring to account for erosive burning effects which occurred in the high-subsonic-Mach-number port. The tests performed on the motor are described.
Document ID
19720026595
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Felix, B. R.
Mcbride, N. M.
(United Aircraft Corp. United Technology Center Div., Sunnyvale, Calif., United States)
Date Acquired
August 6, 2013
Publication Date
September 1, 1971
Subject Category
Propulsion Systems
Report/Patent Number
SAE PAPER 710765
Accession Number
72A10261
Funding Number(s)
CONTRACT_GRANT: NAS1-9258
Distribution Limits
Public
Copyright
Other

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