Measurement of the Trailing Vortex Systems of Large Transport Aircraft, Using Tower Fly-by and Flow Visualization (Summary, Comparison and Application)
Final rept. Apr 1971-Nov 1973
NATIONAL AVIATION FACILITIES EXPERIMENTAL CENTER ATLANTIC CITY NJ
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Full-scale flight test investigations have been made of the characteristics, persistance and movement of the trailing vortices generated by propeller and jet transport aircraft. The tests were performed by the National Aviation Facilities Experimental Center NAFEC, Atlantic City, New Jersey, during the period 1970-1973, using tower fly-by and vortex flow visualization. The results are summarized and comparisons made of the vortices of the Douglas DC10, DC9, and DC7 Boeing 747, 727, and 707 Lockheed C5A, C141, and L1011 and the Convair 880 aircraft. Vortex mathematical models and decay mechanisms are discussed and their effects upset potential on encountering aircraft are investigated for possible air traffic control application.
- Fluid Mechanics