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Development and testing of 11- and 24-inch hybrid motors under the joint government/industry IR&D programEstablishment of a test facility and associated 11-in.-diameter motor for hybrid propulsion technology development at NASA's George C. Marshall Space Flight Center is discussed in this paper. Results of twenty 11-in.-diameter motor tests with a UTF-29901 (60 percent polycyclopentadiene, 40 percent hydroxyl-terminated polybutadiene)/gaseous oxygen propellant system are presented. Tests at this scale have developed fuel regression correlations for comparison with results of yet-to-be-completed, 24-in.-diameter motor tests; demonstrated combustion efficiency levels in the 95 percent range for both single- and multiple-port grain configurations; have shown smooth and stable throttling characteristics over flight-type throttle ranges; and have begun to establish criteria for stable combustion in hybrid motors. The testing of 24-in. motors has not as yet been initiated and is not addressed.
Document ID
19930066277
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Boardman, T. A.
(Thiokol Corp. Brigham City, UT, United States)
Carpenter, R. L.
(Thiokol Corp. Huntsville, AL, United States)
Goldberg, B. E.
(NASA Marshall Space Flight Center Huntsville, AL, United States)
Shaeffer, C. W.
(United Technologies Corp. Chemical Systems Div., San Jose, CA, United States)
Date Acquired
August 16, 2013
Publication Date
June 1, 1993
Subject Category
Ground Support Systems And Facilities (Space)
Report/Patent Number
AIAA PAPER 93-2552
Meeting Information
Meeting: AIAA, SAE, ASME, and ASEE, Joint Propulsion Conference and Exhibit
Location: Monterey, CA
Country: United States
Start Date: June 28, 1993
End Date: June 30, 1993
Sponsors: AIAA, SAE, ASEE, ASME
Accession Number
93A50274
Distribution Limits
Public
Copyright
Other

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