Evaluation Of Aerodynamic Performance Methods For A Helicopter In Forward Flight

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Date

1976

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Abstract

The purpose of this project has been to evaluate and compare methods for predicting rotor performance. This evaluation suggests that rotor performance prediction can be accomplished using simple closed form algebraic equations. More advanced methods which divide up the rotor blade into sections for performance calculations do not predict significantly better results. The advantage of these methods results from their ability to predict blade airloads. In most flight simulations this information is not of importance though. Therefore, only needless mathematical modeling and increased computational time results from the use of large blade element rotor performance programs.

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Program year: 1975/1976
Digitized from print original stored in HDR

Keywords

rotor performance, algebraic equations, blade airloads, mathematical modeling

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