AN INVESTIGATION OF THE DYNAMIC STABILITY CHARACTERISTICS OF A QUAD CONFIGURATION, DUCTED-PROPELLER V/STOL MODEL. VOLUME I. PHASE I - HOVERING
Final data rept.
PRINCETON UNIV NJ DEPT OF AEROSPACE AND MECHANICAL SCIENCES
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Results are presented of experiments conducted to measure the dynamic stability characteristics of a quad configuration, ducted-propeller, dynamically similar model, VSTOL aircraft near hover. The data presented include longitudinal and lateral transient response characteristics of the dynamic model. Also included is a comparison with full-scale duct characteristics of the lift, drag, and pitching moment characteristics of an isolated duct from the model. The model employed in the experiments is a generalized research model which was arranged to represent closely the X-22A VSTOL aircraft. The data presented in the report represent the first phase of a three-phase investigation of the dynamic stability of this type of VSTOL aircraft. The other two phases pertain to the longitudinal and lateraldirectional characteristics at four low- speed and high-duct-incidence trim conditions.
- Research and Experimental Aircraft
- Fluid Mechanics