Double Eagle 40 (oz6806)
About this Plan
Double Eagle 40. Radio control sport model.
Quote: "Following up the success of the Double Eagle (oz5819) the designer has designed a smaller version - Double Eagle 40 and its performance is as exciting as the large one. By George R Smith.
After several years of development, the basic Double Eagle came into being and proved itself to be one of the hottest design concepts to date (RCM, May 1979). Intended for the Novice/Advanced levels of AMA pattern competition, the Double Eagle design offered, for the first time, an aircraft dedicated to the entry-level competition pattern flier by providing unique aerodynamic characteristics tailored to his needs. These included:
The "symmetrical lift" wing, a non-symmetrical wing that provides the same lift whether upright or inverted without adjusting the aircraft's "angle of attack."
The "lateral lift" fuselage adequate fuselage area forward of the wing providing lift to sustain knife-edge flight with minimum application of top rudder.
A high speed, low drag wing section, washed out to provide good low speed characteristics with solid control for landing.
A roll stability factor that is slightly positive, giving the aircraft a tendency to be self-correcting to maintain wings level.
The world-wide acceptance of the Double Eagle has ben most enthusiastic and has prompted the devlopment of a high performance sport aircraft employing the same technologoigies. The Double Eagle 40 is that aircraft.
the Double Eagle 40 is not simply a scaled down version. In the tradition of the basic Double Eagle, it was designed to meet specific flight characteristics. These include all of the special aerodynamics and performance, but are tempered with a sport aircraft's more forgiving nature.."
Update 27/02/2017: added article, thanks to RFJ.
Supplementary file notes
Article.
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(oz6806)
Double Eagle 40
by George R Smith
from RCMplans (ref:860)
March 1982
52in span
IC R/C
clean :)
all formers complete :)
got article :) -
Found online 29/06/2015 at:
http://www.rcgroups.com/forums/showpost.php?p=31992088...
Filesize: 529KB
Format: • PDFbitmap
Credit*: RFJ, Circlip
Downloads: 1948
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- Double Eagle 40 (oz6806)
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