NACA-TN-1643

Effect of landing flaps and landing gear on the spin and recovery characteristics of airplanes

contributor author	NASA - National Aeronautics and Space Administration (NASA)
date accessioned	2017-09-04T15:31:29Z
date available	2017-09-04T15:31:29Z
date copyright	01/01/1948
date issued	1948
identifier other	ODSTYDAAAAAAAAAA.pdf
identifier uri	https://yse.yabesh.ir/std/handle/yse/32978
description abstract	The effect of landing flaps and landing gear on the spin sans recovery characteristics of airplanes has been determined from investigation of the spinning characteristics of 58 models in the Langley 15-foot and 20-foot free-spinning tunnels. The analysis indicated that generally an adverse effect on recovery characteristics was obtained when the flaps were in an extended position during the fully developed spin. An exception to this effect occurred when the model was heavily loaded along the fuselage and the ailerons were set with the spin, for which condition there ws either no effect or a favorable effect on recovery characteristics. It thus appears that if a spin is entered inadvertently with the landing flaps extended, the flaps, should usually be retracted immediately.
language	English
title	NACA-TN-1643	num
title	Effect of landing flaps and landing gear on the spin and recovery characteristics of airplanes	en
type	standard
page	15
status	Active
tree	NASA - National Aeronautics and Space Administration (NASA):;1948
contenttype	fulltext