Accession Number : AD0671041

Title :   AN EXPERIMENTAL STUDY OF ALLEVIATING THE LIMITS ON MINIMUM-SPEED V/STOL WIND-TUNNEL TESTS,

Corporate Author : WASHINGTON UNIV SEATTLE DEPT OF AERONAUTICS AND ASTRONAUTICS

Personal Author(s) : Shindo,Shojiro ; Rae,William H. , Jr

Report Date : JAN 1968

Pagination or Media Count : 27

Abstract : An experimental study was made to investigate some means to alleviate flow breakdown by using a number of different strake or fence configurations. A total of 23 different configurations were studied in the 4 x 6 ft. insert with a 2 ft. diameter rigid rotor at about 7 psf disk loading. None of the strake configurations studied in the experiment completely eliminate the effect of flow breakdown. A further experimental investigation is desirable because of the increasing interest in testing V/STOL vehicles in the transition speed range. (Author)

Descriptors :   (*VERTICAL TAKEOFF AIRCRAFT, MODEL TESTS), AERODYNAMIC CONFIGURATIONS, ROTARY WINGS, AERODYNAMIC LOADING, AERODYNAMIC CHARACTERISTICS, SHORT TAKEOFF AIRCRAFT, WIND TUNNEL MODELS, DOWNWASH, WAKE, HOVERING

Subject Categories : Aerodynamics
      V/STOL

Distribution Statement : APPROVED FOR PUBLIC RELEASE