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Home / Journal of the American Helicopter Society, Volume 61, Number 4

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

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Publisher: Vertical Flight Society

Volume 61, Number 4, October 2016

Invited Paper

The Challenges and Possibilities of a Truly Quiet Helicopter

29th Alexander A. Nikolsky Honorary Lecture
pp. 1-33(33)
Author: Schmitz, Fredric H.

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Full Papers

Aeroacoustic Simulation of a Complete H145 Helicopter in Descent Flight
pp. 1-13(13)
Authors: Kowarsch, Ulrich; Öhrle, Constantin; Keßler, Manuel; Krämer, Ewald

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A System Identification Strategy for Nonlinear Model of Small-Scale Unmanned Helicopters
pp. 1-13(13)
Authors: Khaligh, Sepehr P.; Fahimi, Farbod; Robert Koch, Charles

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Rotor Vortex Wake in Close Proximity of Walls in Hover
pp. 1-12(12)
Authors: Konuş, Mehmet Fatih; Savaş, Ömer

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Height Estimation and Control of Rotorcraft in Ground Effect Using Spatially Distributed Pressure Sensing
pp. 1-14(14)
Authors: Hooi, Chin Gian; Lagor, Francis D.; Paley, Derek A.

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An Assessment of RCAS Performance Prediction for Conventional and Advanced Rotor Configurations
pp. 1-12(12)
Authors: Jain, Rohit K.; Yeo, Hyeonsoo; Ho, Jimmy C.; Bhagwat, Mahendra

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Parametric Instability of Face-Gear Drives due to Meshing Loads
pp. 1-13(13)
Authors: Peng, Meng; DeSmidt, Hans A.; Saribay, Zihni B.; Smith, Edward C.

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A Third Approximation to Glauert's Momentum Theory
pp. 1-11(11)
Authors: Peters, David A.; Modarres, Ramin; Howard, Andrew B.; Rahming, Benjamin

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Experimental Validation of a Computational Hybrid Methodology to Estimate Fuselage Damage Due to Harsh Landing
pp. 1-11(11)
Authors: Sbarufatti, C.; Vallone, G.; Giglio, M.; Stefaniuk, M.; Leski, A.; Zielinski, W.

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Development of Control Strategies for a Twin-Cyclocopter in Forward Flight
pp. 1-9(9)
Authors: Shrestha, Elena; Hrishikeshavan, Vikram; Benedict, Moble; Yeo, Derrick; Chopra, Inderjit

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Technical Note

Estimation of Modal Participation Factors of Linear Time Periodic Systems Using Linear Time Invariant Approximations
pp. 1-4(4)
Authors: Lopez, Mark J. S.; Prasad, J. V. R.

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