DID YOU KNOW? DTIC has over 3.5 million final reports on DoD funded research, development, test, and evaluation activities available to our registered users. Click
HERE to register or log in.
Accession Number:
ADB806601
Title:
Wind-Tunnel Investigation of an N.A.C.A. 23012 Airfoil with a Slotted Flap and Three Types of Auxiliary Flap
Corporate Author:
NATIONAL AERONAUTICS AND SPACE ADMINISTRATION WASHINGTON DC
Report Date:
1938-10-31
Abstract:
An investigation was made to determine the aerodynamic section characteristics of an airfoil with a medium-size main slotted flap equipped successively with auxiliary flaps of the plain, split, and slotted types. On the basis of maximum lift coefficient, low drag at moderate and high lift coefficients, and high drag at high lift coefficients, the optimum combination was found to be the double slotted flap. All the auxiliary flaps tested, however, increased the magnitudes of the pitching moments over those of the main slotted flap alone.
Descriptive Note:
Technical rept.
Pages:
0029
Distribution Statement:
Approved for public release; distribution is unlimited.
File Size:
1.71MB
