首页>
美国政府科技报告
>Aerodynamic Characteristics in the Approach, Superfine and Negative Pitch Ranges of Two Four-Bladed Propellers with N.A.C.A. Series 16 Blade Sections a Report of Tests carried out Jointly by the Technical Staffs of de Havilland Propellers, Limited, and Rotol, Limited.
【24h】
Aerodynamic Characteristics in the Approach, Superfine and Negative Pitch Ranges of Two Four-Bladed Propellers with N.A.C.A. Series 16 Blade Sections a Report of Tests carried out Jointly by the Technical Staffs of de Havilland Propellers, Limited, and Rotol, Limited.
Tests were conducted on two similar full-scale propellers in the 24-ft Wind Tunnel at the Royal Aircraft Establishment by representatives of Rotol, Ltd. and de Havilland Propellers, Ltd. to measure the aerodynamic characteristics over a blade-angle range of — 20 deg to + 40 deg, measured at the 0 . 7 radius, and over a range of advance ratio of 0.1 to 2.4.
展开▼
