NACA-RM-L7K07

Flight characteristics at low speed of delta-wing models

contributor author	NASA - National Aeronautics and Space Administration (NASA)
date accessioned	2017-09-04T17:22:10Z
date available	2017-09-04T17:22:10Z
date copyright	01/01/1948
date issued	1948
identifier other	ZVITDEAAAAAAAAAA.pdf
identifier uri	http://yse.yabesh.ir/std/handle/yse/145404
description abstract	An exploratory Investigation to obtain a survey of the flying characteristics at low speeds of models with low-aspect-ratio delta wings has been conducted in the Langley free-flight tunnel. Four models having triangular plan--form wings with 53°, 63 °, 76°, and 83 ° sweepback and five models having these same wings with the tips cut off to give taper ratios of 0.5 or 0.2 were used in this investigation. It was found that the stability and control characteristics of the models with 53 ° or 63° sweepback and aspect ratios of 2 or 3 were fairly good. The power-off glide angles, however, were very steep at high lift coefficients. The flight characteristics of the models with 76° or 83° sweepback or aspect ratios of 1 or less were unsatisfactory because of unstable rolling oscillations at high lift coefficients or because of excessive changes in static longitudinal stability over the lift range.
language	English
title	NACA-RM-L7K07	num
title	Flight characteristics at low speed of delta-wing models	en
type	standard
page	36
status	Active
tree	NASA - National Aeronautics and Space Administration (NASA):;1948
contenttype	fulltext