NASA-MEMO-12-2-58 REV A

Estimation of Directional Stability Derivatives at Small Angles and Subsonic and Supersonic Speeds

contributor author	NASA - National Aeronautics and Space Administration (NASA)
date accessioned	2017-09-04T16:55:05Z
date available	2017-09-04T16:55:05Z
date copyright	01/01/1958
date issued	1958
identifier other	XANKAEAAAAAAAAAA.pdf
identifier uri	https://yse.yabesh.ir/std/handle/yse/118604
description abstract	Methods are presented for estimating the directional stability derivative increments contributed by the stabilizing surfaces of subsonic and supersonic aircraft. These methods are strictly applicable at zero angle of attack and small angles of sideslip. The procedure of totaling the incremental coefficients to obtain an estimation of the total empennage side-force and yawing-moment coefficient derivatives is also shown, together with numerical examples. A correlation is presented between estimated and experimental incremental coefficients which indicates that the methods of this report generally estimate the increment of side force gained by the addition of a panel to within +20 percent. This is true for both subsonic and supersonic Mach numbers.
language	English
title	NASA-MEMO-12-2-58 REV A	num
title	Estimation of Directional Stability Derivatives at Small Angles and Subsonic and Supersonic Speeds	en
type	standard
page	95
status	Active
tree	NASA - National Aeronautics and Space Administration (NASA):;1958
contenttype	fulltext