NACA-TN-715

Wind-tunnel investigation of an N.A.C.A. 23012 airfoil with two arrangements of a wide-chord slotted flap

contributor author	NASA - National Aeronautics and Space Administration (NASA)
date accessioned	2017-09-04T16:06:49Z
date available	2017-09-04T16:06:49Z
date copyright	01/01/1939
date issued	1939
identifier other	BHYIYDAAAAAAAAAA.pdf
identifier uri	https://yse.yabesh.ir/std/handle/yse/70046
description abstract	An investigation has been made in the N.A.C.A. 7- by 10-foot wind tunnel of a large-chord N.A.C.A. 23012 airfoil with several arrangements of a 40-percent-chord slotted flap to determine the section aerodynamic characteristics of the airfoil as affected by slot shape, flap location, and flap deflection. The flap positions for maximum lift, the polar for arrangements considered favorable for take-off and climb, and the complete section aerodynamic characteristics for selected optimum arrangements were determined. A discussion is given of the relative merits of the various arrangements. A comparison is made of slotted flaps of different chords on the N.A.C.A. 23012 airfoil. The best 40-percent-chord slotted flap is only slightly superior to the 25-percent-chord slotted flap from considerations of maximum lift coefficient and low drag for take-off and initial climb.
language	English
title	NACA-TN-715	num
title	Wind-tunnel investigation of an N.A.C.A. 23012 airfoil with two arrangements of a wide-chord slotted flap	en
type	standard
page	24
status	Active
tree	NASA - National Aeronautics and Space Administration (NASA):;1939
contenttype	fulltext