Generalized helicopter rotor performance predictions.
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Authors
Loiselle, James William
Subjects
helicopter
helicopter performance
helicopter computer program
helicopter performance
helicopter computer program
Advisors
Schmidt, Louis V.
Date of Issue
1977-09
Date
September 1977
Publisher
Monterey, California. Naval Postgraduate School
Language
en_US
Abstract
The Generalized Rotor Performance (GRP) program is a
computer program designed for calculating forward flight
performance of a helicopter rotor system at a specific
flight condition. It can be used to evaluate either an
articulated or a hingeless single rotor system in forward
flight or in a wind-tunnel test. The program was originally
designed by the Sikorsky Aircraft Company and purchased by
the United States Navy.
The goals of this thesis were (1) to reinvestigate the
theory and logic used in the program, (2) to add selected
desirable features to the program, (3) to produce a much
needed Users' Manual, and (U) to run an analysis comparing
the program's calculated results against manufacturer's
data. These goals were accomplished and the results of the
analysis indicated that the program produces highly accurate
results within the normal cruise range of a modern
helicopter.
Type
Thesis
Description
Series/Report No
Department
Aeronautics
Organization
Naval Postgraduate School (U.S.)
Identifiers
NPS Report Number
Sponsors
Funder
Format
Citation
Distribution Statement
Approved for public release; distribution is unlimited.
Rights
This publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.