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The Vertical Flight Society presents the Paper of the Month!

The August Paper of the Month is now available – free for members: "EASA Helicopter Vortex-Ring-State Experimental Research Project," by Laurent Binet of ONERA, Philippe Gasquez of DGA-EV, and Raffaele Di Caprio of EASA, was the winner of the Alfred Gessow Best Paper Award at Forum 81 at May 2025.

Download this paper today!

Are you a VFS member? Log in to receive this month's paper absolutely free! Not a member? Check out the benefits of membership and consider joining today!

Welcome to the Vertical Flight Library & Online Store!
Current product count in the Library: 17246 items, with 16886 technical papers! We are constantly adding new items to the store, so check back often.

The Vertical Flight Library includes downloadable papers from nearly all Forum Proceedings from 1943 to today, as well as papers from more than 170 Technical Meetings and 70+ years of Vertiflite magazine! Note: the Journal of the AHS is hosted separately — please go to www.vtol.org/journal.

The VFS Online Store includes Forum and Technical Meeting proceedings CD-ROMs, books and Vertical Flight Society merchandise that require shipping.

Choose a department or use the search box above to find specific terms. You can also search our index of all available Forum papers.

Vertical Flight Library (electronic media)
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The Vertical Flight Society is the global resource for information on vertical flight technology.

NEW: Check out the latest addition to the Vertical Flight Library!

Comprehensive Analysis at Boeing: Methodology and Its Application to Rotor Dynamics, Loads, Vibration, and Aeroelastic Stability: The 44th Alexander A. Nikolsky Honorary Lecture, Brahmananda Panda
List price: $30.00

(Added to the VFS Library on Jun 29, 2026).

Are you a VFS member? Log in to receive the member price of $15.00 on this item! Not a member? Check out the benefits of membership and consider joining today!

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