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The Vertical Flight Society presents the Paper of the Month!

The October Paper of the Month is now available – free for members. In recognition of this year's Robert L. Lichten Award winner, we have selected "Investigation of Stacked Rotor Performance in Hover Part 1: Experimental Measurements" by Chloe Johnson, Jayant Sirohi, University of Texas at Austin; George Jacobellis, Rajneesh Singh, US Army Research Laboratory; and Rob McDonald, Uber Technology, Inc., presented at the Transformative Vertical Flight Technical Meeting in January 2020.

Download it today!

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Welcome to the Vertical Flight Library & Online Store!

Current product count in the Library: 14121 items, with 13794 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 100 Technical Meetings and 65 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 and USB drives, 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.

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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!

Investigation of the Accuracy Requirements for Permeable Surfaces Used in Rotor Noise Prediction, Seongkyu Lee, Kenneth S. Brentner, and Christopher C Hennes, The Pennsylvania State University; Bryan T. Flynt, Johannes N. Theron, and Earl P.N. Duque, Northern Arizona University
List price: $30.00

(Added to the VFS Library on Sep 29, 2020).

Are you a VFS member? Log in to receive the member price of $5.00 on this item! Not a member? Check out the benefits of membership and consider joining today!

Vertical Flight Library & Store

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