Title:
A Comparative Assessment of Highspeed Rotorcraft Concepts (HSRC) : Reaction Driven Stopped Rotor/Wing and Variable Diameter Tiltrotor

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Tai, Jimmy C. M.
Mavris, Dimitri N.
Schrage, Daniel P.
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Abstract
The objective of this paper is to illustrate the methods and tools developed to size and synthesize a stopped rotor/wing vehicle using a reaction drive system, including how this design capability is incorporated into a sizing and synthesis tool, VASCOMP II. This new capability is used to design a vehicle capable of performing a V-22 escort mission, and a sized vehicle description with performance characteristics is presented. The resulting vehicle is then compared side-by-side to a variable diameter tiltrotor designed for the same mission. Results of this analysis indicate that the reaction-driven rotor concept holds promise relative to alternative concepts, but that the variable diameter tiltrotor has several inherent performance advantages. Additionally, the stopped rotor/wing needs considerably more development to reach maturity.
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1997-10
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408351 bytes
1905 bytes
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