A number of people have asked me for more info about the dynamic soaring
article written up in "Technical Soaring" (an SSA publication) in the early
1970's. I finally went through my aeronautical reference library and found
it, and here it is:
=================================
Title:
DYNAMIC SOARING IN THE ATMOSPHERIC BOUNDARY LAYER:
AN EXPERIMENTAL INVESTIGATION
15 pages
by:
Vadym V. Utgoff
Assoc. Professor, Aerospace Engineering Dept
U.S. Naval Academy
and
Fredrick G. Johnson
Midshipman USN
U.S. Naval Academy
Presented originally at the XV OSTIV Congress, Rayskala, FINLAND, 1976
Republished in TECHNICAL SOARING
Volume V, Issue No. 2, December 1978
A quarterly technical journal on soaring and motorless flight
Published by the Soaring Society of America
ABSTRACT:
The feasibility of maintaining continuous non-powered flight by utilizing a
vertical wind velocity gradient is analyzed. It is concluded that the wind
velocity gradients which have been observed in the upper atmosphere are not
sufficiently steep for this purpose; but wind shears likely to be
encountered in the surface boundary layer should be adequate...
==================================
Dan deVries
DEVRIES DESIGN, Inc.
Product Design --+-- Patent/Litigation Graphics
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