1. Allison Gas Turbine, Air Force Contract F33615-86-C-2607;McKain T.,1989
2. Pratt & Whitney Aircraft, NASA-CR-121177;Dobeck L,1973
3. AVCO-Lycoming, NASA-CR-134647;Lynwander P.,1973
4. AVCO-Lycoming, NASA-CR-134940;Lynwander P.,1975
5. AVCO-Lycoming, NASA-CR-135159;O'Brien M.,1976