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NASA-CR-2443

Development of a Fowler flap system for a high performance general aviation airfoil

contributor authorNASA - National Aeronautics and Space Administration (NASA)
date accessioned2017-09-04T15:20:08Z
date available2017-09-04T15:20:08Z
date copyright01/01/1974
date issued1974
identifier otherMVMKAEAAAAAAAAAA.pdf
identifier urihttps://yse.yabesh.ir/std/handle/yse/20030
description abstractA two-dimensional wind-tunnel evaluation of two Fowler flap configurations on the new GA(W)-1 airfoil was conducted. One configuration used a computer-designed 29-percent chord Fowler flap. The second configuration was modified to have increased Fowler action with a 30-percent chord flap. Force, pressure, and flow-visualization data were obtained at Reynolds numbers of 2.2 million to 2.9 million. Optimum slot geometry and performance were found to be close to computer predictions. A C sub L max of 3.8 was achieved. Optimum flap deflection, slot gap, and flap overlap are presented as functions of C sub L. Tests were made with the lower surface cusp filled in to show the performance penalties that result. Some data on the effects of adding vortex generators and hinged-plate spoilers were obtained.
languageEnglish
titleNASA-CR-2443num
titleDevelopment of a Fowler flap system for a high performance general aviation airfoilen
typestandard
page118
statusActive
treeNASA - National Aeronautics and Space Administration (NASA):;1974
contenttypefulltext
subject keywordsAERODYNAMIC
subject keywordsAIDED
subject keywordsAIRCRAFT
subject keywordsAIRFOIL
subject keywordsAVIATION
subject keywordsCOEFFICIENTS
subject keywordsCOMPUTER
subject keywordsDESIGN
subject keywordsDISTRIBUTION
subject keywordsEDGE
subject keywordsFLAPS
subject keywordsFLOW
subject keywordsGAW
subject keywordsGENERAL
subject keywordsPRESSURE
subject keywordsSPEED
subject keywordsSUBSONIC
subject keywordsTESTS
subject keywordsTRAILING
subject keywordsTUNNEL
subject keywordsVISUALIZATION
subject keywordsWIND


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