Wind-Tunnel Investigation of a Rectangular NACA 2212 Airfoil with Semispan Ailerons and with Nonperforated, Balanced Double Split Flaps for Use as Aerodynamic Brakes

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Wind-Tunnel Investigation of a Rectangular NACA 2212 Airfoil with Semispan Ailerons and with Nonperforated, Balanced Double Split Flaps for Use as Aerodynamic Brakes

Ivey, Margaret F

Flat-plate flaps with no wing cutouts and flaps having Clark Y sections with corresponding cutouts made in wing were tested for various flap deflections, chord-wise locations, and gaps between flaps and airfoil contour. The drag was slightly lower for wing with airfoil section flaps. Satisfactory aileron effectiveness was obtained with flap gap of 20% wing chord and flap-nose location of 80 percent wing chord behind leading edge. Airflow was smooth and buffeting negligible.

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Title :

Wind-Tunnel Investigation of a Rectangular NACA 2212 Airfoil with Semispan Ailerons and with Nonperforated, Balanced Double Split Flaps for Use as Aerodynamic Brakes

Contributors:

Ivey, Margaret F (author)

Publication date :

1945-04-01

Type of media :

Miscellaneous

Type of material :

No indication

Language :

English

Keywords :

Aircraft Design, Testing And Performance , WINGS, RECTANGULAR - CHARACTERISTICS - EFFECT OF WING FLAPS , AIRFOILS - NACA 2212 - CHAR & MOMENTS - WING FLAPS, SPLIT, (DOUBLE) & AILERONS , WING FLAPS, SPLIT - BALANCED , AILERONS - MOMENTS , BRAKES, AIR