Test 370: Turboprop

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Back Arrow.jpg Back to Additional Photos for 16-Foot Transonic Tunnel Ordered by Tunnel Test Log

Test 370 was conducted during two tunnel entries in late 1982 and early 1983. The test was conducted on a supercritical straight wing with a turboprop powered nacelle mounted on the wing. The purpose was to determine the interference effects of propeller wash on a simple wing model. The wing was mounted on a bifurcated wing-tip support system for the test. Wing pressure distributions were obtained from eleven rows of static pressure orifices. The model was tested with and without propeller blades installed. A blade failure occurred in Aug. 1982 (probably during model check-out in the JETF Bldg. 1234) and resulted in additional safety measures for the test in the tunnel (see first 7 images). An air turbine failure apparently occurred late in the test during 1983 (see last several photos).


9/22/1982 to 10/4/1982

1982-04  Motor Nacelle Cross Section1982-04 Findings of Motor Components Failure1982-05-24 Turboprop Note to Charlie Mercer from Jack Runckel1982-05-26 Straight Wing Turboprop Notes1984-04 Recommendations from FailureBlade failuresBlade FailuresL-82-9236.jpgL-82-9237.jpgL-82-9238.jpgStraight Wing/Propfan Interference ModelStraight Wing/Propfan Interference ModelTurboprop Nacelle Mounted on an Unswept Supercritical Wing



12/8/1982 to 1/14/1983

1983 Propfan/Straight WingProp Installation Code VerificationProp Installation Code VerificationProp Installation Code VerificationProp Installation Code VerificationAdvanced Turbo PropAdvanced Turbo PropAdvanced Turbo PropAdvanced Turbo PropAdvanced Turbo PropAir Turbine FailureAir Turbine FailureAir Turbine FailureAir Turbine Failure
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