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Basic Factors of Helicopter Design
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English
Abstract
PRESENTED here are the basic factors of helicopter design; and in addition, the paper shows a method of designing a helicopter so that it will have optimum efficiency for both hovering and cruising flight.
Further extension of helicopter design involves the use of a chart on which an efficiency factor versus operating blade light angle is plotted. All deviations from the theoretical expressions are compensated on this chart, which provides an overall comparison and design aid.
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Citation
Prewitt, R., "Basic Factors of Helicopter Design," SAE Technical Paper 450215, 1945, https://doi.org/10.4271/450215.Also In
References
- “On the Vertical Ascent of a Helicopter,” Glauert H. British Aeronautical Research Committee Reports and Memoranda 1132 1927
- “Design of Rotor Blades,” Prewitt R. H. Journal of the Aeronautical Sciences 9 May 1942 255 260
- “Static Thrust Analysis of Lifting Airscrew,” Knight M. Hefner R. A. NACA Technical Note No. 626 1937
- “Contribution to Aerodynamics of Rotating-Wing Aircraft - Part II,” Sissingh G. NACA Technical Memorandum No. 990 1941
- “Physical Principles of the Helicopter,” Bennett J. A. J. Princeton University Department of Aeronautical Engineering Lecture Notes
- “Aerodynamic Theory,” IV Durand W. F. Julius Springer Berlin 1935
- “Possibilities of the Jump-Off Autogiro,” Prewitt R. H. Journal of the Aeronautical Sciences 6 1938 10 14
- “Introduction to the Helicopter,” Klemin A. NACA Technical Memorandum No. 340 1925