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Determination of the damping moment in yawing for tapered wings with partial-span flaps

contributor authorNASA - National Aeronautics and Space Administration (NASA)
date accessioned2017-09-04T18:47:31Z
date available2017-09-04T18:47:31Z
date copyright01/01/1943
date issued1943
identifier otherKMCTUDAAAAAAAAAA.pdf
identifier urihttp://yse.yabesh.ir/std;query=authoCA5893FD081D20686159DD6EFDEC014A/handle/yse/228671
description abstractINTRODUCTION
The Calculation by Wieselsberger of the wing damping moment for an untwisted elliptical wing in yawing is summarized and extended in reference 1 to the case of an untwisted rectangular wings and also for the special angle-of-attack distribution that results from the deflection of partial-span flaps of constant chord ratio when the rest of the span is at zero angle of attack. The results in reference 2 for the yawing derivative due to induced drag, however, contain inaccuracies because of the omission of an important term in the formula for the yawing moment. Also, as noted in reference 2, the results cannot be applied by simple superposition to the case in which the lift is contributed simultaneously by partial-span flaps and by the plain portions of the wing. This limitation follows from the fact that the damping moment varies as the square of the angle-of-attack distribution; hence, separate components of the lift distribution have interactions that contribute to the resultant value of the yawing derivative.
languageEnglish
titleNACA-ARR-3H25num
titleDetermination of the damping moment in yawing for tapered wings with partial-span flapsen
typestandard
page21
statusActive
treeNASA - National Aeronautics and Space Administration (NASA):;1943
contenttypefulltext
subject keywordsCHARACTERISTICS
subject keywordsDAMPING
subject keywordsDEFLECTION
subject keywordsDISTRIBUTION
subject keywordsEFFECT
subject keywordsELLIPTICAL
subject keywordsFLAPS
subject keywordsLIFT
subject keywordsMOMENTS
subject keywordsPARTIAL
subject keywordsSPAN
subject keywordsTAPERED
subject keywordsWING
subject keywordsWINGS
subject keywordsYAW
subject keywordsYAWING


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