NACA-TR-923

Effect of afterbody length and keel angle on minimum depth of step for landing stability and on take-off stability of a flying boat

contributor author	NASA - National Aeronautics and Space Administration (NASA)
date accessioned	2017-09-04T15:42:38Z
date available	2017-09-04T15:42:38Z
date copyright	01/01/1949
date issued	1949
identifier other	BAXUYDAAAAAAAAAA.pdf
identifier uri	https://yse.yabesh.ir/std/handle/yse/44890
description abstract	Tests were made to fill partly the need for information on the effect of afterbody dimensions on the hydrodynamic stability of a flying boat in smooth water. The dimensions investigated were depth of step, angle of afterbody keel, and length of afterbody. An analysis of the data showed that as either the afterbody length or keel angle was increased an accompanying increase in depth of step was required in order to maintain adequate landing stability. The landing-tests results have been reduced to an empirical formula giving the minimum depth of step in terms of afterbody length and keel angle. This formula is compared with results from other tank tests, and the correlation is fairly good. The formula thus becomes of use in preliminary design.
language	English
title	NACA-TR-923	num
title	Effect of afterbody length and keel angle on minimum depth of step for landing stability and on take-off stability of a flying boat	en
type	standard
page	13
status	Active
tree	NASA - National Aeronautics and Space Administration (NASA):;1949
contenttype	fulltext