The aerodynamics of the Sheriff twin-engined light aircraft were examined. Flow visualization experiments which gave evidence of a premature stall arising on the wing section between the nacelle and fuselage are described. A search for improvement was made using various high lift leading edge devices, fillets, and changes of nacelle geometry. Improved aerodynamic performance in the Sheriff by adopting pointed tail nacelles, leading edge cusps on the wing inboard of the nacelles, and fairings on the wing/fuselage junctions is discussed. Pressure readings taken to assess the forces likely to be encountered on the canopy hatches are reported.
Wind Tunnel Tests on the Sheriff Twin-Engined Light Aircraft
1979
76 pages
Report
No indication
English
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