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Robert K. Heffley

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Minimum-complexity helicopter simulation math model

by Robert K. Heffley First published in 1988 — 2 editions

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Aircraft handling qualities data

by Robert K. Heffley First published in 1972 — 1 edition

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Airworthiness criteria development for powered-lift aircraft: a program summary

by Robert K. Heffley First published in 1977 — 1 edition

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Helicopter roll control effectiveness criteria program summary

by Robert K. Heffley First published in 1988 — 1 edition

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A STOL airworthiness investigation using a simulation of a deflected slipstream transport

by Robert K. Heffley First published in 1974 — 1 edition

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OLID: OL4397499A

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Created August 31, 2008
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August 31, 2008

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