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NASA Heavy Lift Rotorcraft Systems InvestigationThe NASA Heavy Lift Rotorcraft Systems Investigation examined in depth several rotorcraft configurations for large civil transport, designed to meet the technology goals of the NASA Vehicle Systems Program. The investigation identified the Large Civil Tiltrotor as the configuration with the best potential to meet the technology goals. The design presented was economically competitive, with the potential for substantial impact on the air transportation system. The keys to achieving a competitive aircraft were low drag airframe and low disk loading rotors; structural weight reduction, for both airframe and rotors; drive system weight reduction; improved engine efficiency; low maintenance design; and manufacturing cost comparable to fixed-wing aircraft. Risk reduction plans were developed to provide the strategic direction to support a heavy-lift rotorcraft development. The following high risk areas were identified for heavy lift rotorcraft: high torque, light weight drive system; high performance, structurally efficient rotor/wing system; low noise aircraft; and super-integrated vehicle management system.
Document ID
20060023335
Acquisition Source
Ames Research Center
Document Type
Technical Publication (TP)
Authors
Johnson, Wayne
(NASA Ames Research Center Moffett Field, CA, United States)
Yamauchi, Gloria K.
(NASA Ames Research Center Moffett Field, CA, United States)
Watts, Michael E.
(NASA Langley Research Center Hampton, VA, United States)
Date Acquired
September 7, 2013
Publication Date
December 1, 2005
Subject Category
Aircraft Design, Testing And Performance
Report/Patent Number
NASA/TP-2005-213467
Rept-A-0514419
Funding Number(s)
OTHER: 21-065-40-10
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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