Sea Horse (oz8007)
About this Plan
Seahorse. Radio control floatplane, twin boom design for Super Tigre .45 power.
Quote: "Round wheels roll better than flat tires. The guy who designed that first stone with a hole in it came up with a functional shape that's hard to beat. The design was right and it will stay with us.
You can say the same for the multi pattern ships, the pylon free-flights, the controline saunters and so on. Each nearly perfect in design for its intended function, and the same is true in a sense of the present stage of development of our seaplanes. Both flying boats and twin-float seaplanes tend to settle into their own distinctive planforms which have proven functional and efficient, and it is hard to vary the configuration.
While refinements in design from one ship to another breed the perfect aircraft, the spirit of the modeler tends to decay away in the process. It is hard to keep up an interest forever in look-alike designs and we all tend to feel unduly inspired when somebody totes out the unusual to the flying field.
This was our frame of mind when we tried to doodle-out a new basic design. A wing here, a tail there, engine in a nacelle, a hull to connect all, wing floats for stability - and the sketch already resembled our 15 year old line of flying boats. Then the mind wandered back to Martin Mariners, Boeing 314 Clippers, Sikorsky flying boats - and Balboa's 1933 Italian twin-hulled seaplanes which flew overhead enroute to the Chicago World's Fair. Two giant floats, booms, tail, engine in a nacelle. Why not? A perfect change of pace, and a design which requires new solutions, but offers a promise of excellent water and air performance. A design which requires less wood, less weight and less take-off power.
This ancient craft might make a fine scale seaplane for some industrious soul, but the general idea rather than the scale configuration is what interested this designer.
And so, the 'Sea Horse' design took form, and is currently being built. Spring weather should see it in the air, and as the design is readily adjustable for float angles, incidence and what have you, we anticipate quick success with it on the water and in the air.
The design offers a complete change of pace, both structurally and in ap-pearance. The kind of ship that is both easy and fun to build, though we are building this ship and modifying it as we go along. Depending upon your de-gree of skill, experience and available equipment, you may choose to do the same.
The ship spans 67 in, ample in area, with a semi-symmetrical airfoil section, intended to develop some lift to free the beast from the water. Ample in area to lessen the wing loading, creating a fairly mild flying machine with modern proportional equipment. It should be quite flyable with other sys-tems, though elevator should be used when possible to flair the landings..."
Attached is Don McGovern's Sea Horse from Flying Models magazine issue 05-67. Regards,
Direct submission to Outerzone.
Update 01/09/2016: Added alternative scan of the same plan, as a supplement. This was previously listed as ID=5258 forming a duplicate entry.
Supplementary file notes
Article pages, text only. Also, alternative scan by JJ.
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User commentsHi Steve, This seems to be a duplicate of the plan with ID=5258 Kind regards,
GerritL - 01/09/2016
Doh. Good point, thanks. OK have combined them into one entry, now.
SteveWMD - 01/09/2016
Laddie Mikulasko, designer of the RC sport classic North Star delta wing amphibian, had an unconventional RC seaplane design published in 2013 that used the same planform of design Don McGovern used in his unconventional Sea Horse seaplane. But, Mikulasko’s design is a SCALE MODEL OF AN ACTUAL MANNED AIRCRAFT designed by Dewey Eldred in 1946. It’s called Flyer’s Dream. Mikulasko’s scale model of Flyer’s Dream is electric powered with a wingspan of 52 inches. Mikulasko’s Flyer’s Dream is featured in the February 2013 issue of Flying Models.
Dewey Eldred’s 'Flyer's Dream' light seaplane, 1946 MovieTone Newsreel: https://youtu.be/pvVS97dmVYQ.
RC Scale Model Seaplane Dewey Eldred’s Flyer’s Dream Flight Demonstration. Seaplane event at Edersee, Germany in June 2017: https://youtu.be/FRy5Mwhi-WY.
Ternscher Maiden: Dewey Eldred (2010, Lake Ternscher, Germany): https://vimeo.com/14641043.
From Model Airplane News, November 1946, News: Flash, p.2, a photo of Dewey Eldred and his seaplane, the caption says: "Designer Dewey Eldred with his light seaplane. Ship has a large stowage space and roomy cabin; 125-hp Continental takes it off water in 10-sec, and top speed is 125-mph."
Info source on MAN 11/46 issue: https://groups.google.com/g/rec.aviation.military/c/PVV1by42kwE?pli=1.
This Ebay photo shows Dewey and his plane in “News: Flash, p.2” in MAN 11/46 issue: https://i.ebayimg.com/images/g/WK0AAOSwPe1UELlh/s-l1600.jpg.
The Ebay photo was found in this Ebay listing of MAN 11/46 issue: https://www.ebay.com/itm/rare-vintage-model-mag-MODEL-AIRPLANE-NEWS-dated-Nov-1946/333142658229.
AaronVose - 07/09/2020
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