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The Journal of the American Helicopter Society is the world's only scientific journal dedicated to vertical flight technology. It is a peer-reviewed technical journal published quarterly by AHS International and presents innovative papers covering the state-of-the-art in all disciplines of rotorcraft design, research and development. (Please note that AHS members receive significant discounts on articles and subscriptions.)

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Authors can find submission guidelines and related information on the AHS website.

Publisher: AHS International

Volume 57, Number 4, October 2012

Full Papers

Time-Domain Approach for Acoustic Scattering of Rotorcraft Noise
pp. 1-12(12)
Authors: Lee, Seongkyu; Brentner, Kenneth S.; Morris, Philip J.

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Three-Dimensional Sound Directivity around a Helicopter Turboshaft Engine
pp. 1-10(10)
Authors: Gounet, Helene; Lewy, Serge

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Aerodynamic Optimization Study of a Coaxial Rotor in Hovering Flight
pp. 1-15(15)
Authors: Syal, Monica; Leishman, J. Gordon

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A Tribute to Professor Reńe H. Miller: A Pioneer in Aeromechanics and Rotary Wing Flight Transportation
pp. 1-8(8)
Authors: Friedmann, Peretz P.; Johnson, Wayne; Scully, Michael P.

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A Visual Study of Vortex Instabilities in the Wake of a Rotor in Hover
pp. 1-8(8)
Authors: Ohanian, Christopher V.; McCauley, Gregory J.; Savaş, Ömer

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Prediction of Brownout Inception Beneath a Full-Scale Helicopter Downwash
pp. 1-13(13)
Authors: Jasion, Gregory; Shrimpton, John

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Numerical Comparison of Dynamic Stall for Two-Dimensional Airfoils and an Airfoil Model in the DNW–TWG
pp. 1-13(13)
Authors: Klein, A.; Lutz, Th.; Krämer, E.; Richter, K.; Gardner, A.D.; Altmikus, A.R.M.

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Technical Notes

Improved Shroud Design for Rotary Wing MAV Applications Based on Computational Analysis
pp. 1-5(5)
Authors: Lakshminarayan, Vinod K.; Baeder, James D.

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Innovative Technique of Using the Radar Altimeter for Prediction of Terrain Collision Threats
pp. 1-3(3)
Authors: Labun, Ján; Soták, Miloš; Kurdel, Pavol

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