28th Congress of the International Council of the Aeronautical Sciences, 23 - 28 September 2012, Brisbane, Australia
Paper ICAS 2012-11.8.2

HIGH ANGLE OF ATTACK FLIGHT CONTROL OF A TAIL-SITTER UNMANNED AIRCRAFT

D. Kubo, S. Suzuki*
JAXA, Japan; *Univ. of Tokyo, Japan

Keywords: vertical takeoff and landing (vtol), unmanned aircraft system (uas), tail-sitter, flight tests, particle image velocimetry (piv)

The prototype of a tail-sitter mini unmanned aircraft had a poor margin in the pitch angle control in high angle of attack flights. To explore an improvement of the pitch control, flow visualization via particle image velocimetry was conducted. Based on the result, the improvement was discussed and demonstrated.

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