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AFSC T-33A PERFORMANCE EVALUATION
AIR FORCE TEST CENTER EDWARDS AFB CA
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Research is reported on the performance test of a representative T- 33A aircraft with an average thrust engine to determine the cause for the variation in performance between aircraft. For comparison purposes additional tests were performed on an aircraft having a low thrust engine. With a few exceptions the test and Flight Manual performance data compare favorably for the representative aircraft tested. The greatest cause of thrust variation is not attributed to the deterioration of the engine with service life, but rather, to the broad thrust limits allowed after overhaul of the engine and to variations of trim rpm in flight. Low exhaust gas temperatures below 685 degrees C may indicate a low thrust engine however, positive correlation of this point was not established. As a result of the qualitative investigation, it is recommended that the sideslip restrictions for the aircraft with travel pod installed be the same as for the aircraft with tip tanks installed.
APPROVED FOR PUBLIC RELEASE