NACA-TN-417

Wind-tunnel tests of a Hall high-life wing

contributor author	NASA - National Aeronautics and Space Administration (NASA)
date accessioned	2017-09-04T16:18:14Z
date available	2017-09-04T16:18:14Z
date copyright	01/01/1932
date issued	1932
identifier other	TEYIYDAAAAAAAAAA.pdf
identifier uri	https://yse.yabesh.ir/std/handle/yse/81672
description abstract	Wind-tunnel tests have been made to find the lift, drag, and center-of-pressure characteristics of a Hall high-lift wing model. The Hall wing is essentially a split-flap airfoil with an internal air passage. Air enters the passage through an opening in the lower surface somewhat back of and parallel to the leading edge, and flows out through an opening made by deflecting the rear portion of the under surface downward as a flap. For ordinary flight conditions the front opening and the rear flap can be closed, providing in effect a conventional airfoil (the Clark Y in this case). The tests were made with various flap settings and with the entrance to the passage both open and closed. The highest lift coefficient found, C(sub L) = 2.08, was obtained with the passage closed.
language	English
title	NACA-TN-417	num
title	Wind-tunnel tests of a Hall high-life wing	en
type	standard
page	11
status	Active
tree	NASA - National Aeronautics and Space Administration (NASA):;1932
contenttype	fulltext