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Wind-tunnel investigation of control-surface characteristics of plain and balanced flaps on an NACA 0009 elliptical semispan wing

H Norman Silvers

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Abstract

A series of force tests have been made In the Langley 4-by 6-foot vertical tunnel on aiiKACA 0009 elliptical semispan wing equip~ed with a flap either 50 percent of the wing area or jO percent of the wing area.The 30-percent-area flap was tested as a plain flap and with 35-percent-flap-chord and ~O-percent-flap-CkLOrd 911.~ptical-IIOS8

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A series of force tests have been made In the Langley 4-by 6-foot vertical tunnel on aiiKACA 0009 elliptical semispan wing equip~ed with a flap either 50 percent of the wing area or jO percent of the wing area.The 30-percent-area flap was tested as a plain flap and with 35-percent-flap-chord and ~O-percent-flap-CkLOrd 911.~ptical-IIOS8

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Available abstract

A series of force tests have been made In the Langley 4-by 6-foot vertical tunnel on aiiKACA 0009 elliptical semispan wing equip~ed with a flap either 50 percent of the wing area or jO percent of the wing area.The 30-percent-area flap was tested as a plain flap and with 35-percent-flap-chord and ~O-percent-flap-CkLOrd 911.~ptical-IIOS8

Key concepts: Wind tunnel, Wing, NACA airfoil, Flight control surfaces, Aeronautics, Geology, Aerospace engineering, Engineering

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Wind-tunnel investigation of control-surface characteristics of plain and balanced flaps on an NACA 0009 elliptical semispan wing — Research Paper | ScholarLens