Experimental techniques are discussed that permit evaluation of V/STOL aircraft aerodynamics in and near hovering flight. The unique apparatus employed utilizes a moving model and allows precise control of model velocities from hover through the transition flight regime. Quasi-steady testing results are presented and discussed regarding their value in test productivity, examination of hysteresis phenomena, and elimination of recirculation effects due to the testing enclosure. The suitability of Froude scale modeling is examined and the capability complete flight dynamics simulation is reviewed. Particular attention is devoted to the capability for testing powered models both in and out of ground effect as well as for simulating the dynamics of ground effect. A current Navy/NASA sponsored test program utilizing a Grumman Aerospace Corporation twin-turbofan V/STOL aircraft model is discussed. (DePo)
Low speed testing techniques for V/STOL aircraft in the Princeton dynamic model track
Anordnung fuer die Pruefung von Kurzstart-Senkrechtstartern bei Schwebeflug in der dynamischen Modellpruefanlage von Princeton
AIAA-Papers ; 1-16
1979
16 Seiten, 34 Bilder, 12 Quellen
Conference paper
English
The Princeton Dynamic Model Track and Its Contributions to V-STOL Research
Online Contents | 2003
The Princeton Dynamic Model Track
AIAA | 1964
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