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Flight Tests of a Man Standing on a Platform Supported by a Teetering RotorBecause previous flight tests of a man standing on a jet-supported platform were very successful, a series of flight tests were made to determine the flying qualities of a man standing on a platform supported by a teetering rotor. The rotor was 7 feet in diameter and was driven by air jets at the rotor tips fed by hollow blades and air hoses connected to an external air supply. The machine was tested with a free-teetering rotor and with a spring-restrained rotor, and, as an alternate arrangement, with the rotor and foot platform isolated from the framework by rubber connections to reduce the inertia of the moving parts. The machine was tested indoors in hovering and in limited translational flight and outdoors in light and in strong gusty winds. The stability and controllability with the spring-restrained rotor were uniformly good. The stability with the free-teetering rotor was marginal, but, when an experienced flyer placed his hands on a hand rail, the stability and controllability were good. The stability and controllability with the rubber-isolated frame and spring-restrained teetering rotor were very good and quite like the jet-supported platform.
Document ID
19930088114
Document Type
Other - NACA Research Memorandum (RM)
Authors
Paul R Hill (Langley Aeronautical Laboratory Langley Field, Virginia, United States)
T L Kennedy (Langley Aeronautical Laboratory Langley Field, Virginia, United States)
Date Acquired
August 16, 2013
Publication Date
March 24, 1954
Subject Category
Aircraft Design, Testing and Performance
Report/Patent Number
NACA-RM-L54B12a
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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