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Submitted on: 27 March 2015.
Revised on: 18 June 2015.
Accepted on: 15 July 2015.
___________________JOURNAL OF THE AMERICAN HELICOPTER SOCIETY
Submitted on: 16 September 2004.
Revised on: 19 November 2004.
Accepted on: 16 December 2004.
___________________JOURNAL OF THE AMERICAN HELICOPTER SOCIETY
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Submitted on: 27 August 2009.
Revised on: 19 October 2009.
Accepted on: 15 December 2009.
___________________JOURNAL OF THE AMERICAN HELICOPTER SOCIETY
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