Speedy-Q (oz712)

About this Plan

Speedy-Q. Control line speed model.

Quote: "Winding up our series on controliners for beginners, we present full-size plans and build-it data for a contest-winning speedster. Build the Speedy-Q, by Walter Schroder and Norman Bud Couch.

To wind up the control-line model phase of our series, we bring you complete construction data on the Couch Speedy-Q, a Class D speedster which won every major Northeastern Plymouth Eliminations event in 1949. It won the Greater New York Area meet with 144.22 mph; the Connecticut meet with 135.25 mph; the Massachusetts meet with 138.50 mph, and numerous other New England contests with speeds ranging from 135.25 mph to 146.70 mph.

Our speedster is the cumulative result of many models - the best points incorporated, the weak-nesses eliminated. The main objective was a maximum strength-to-weight ratio, with ease of flying at high speed. The model shown in the photos was flown at least twice a week for two and a half months without even a minor repair, just a swipe of a wiping rag and back to work.

Believe it or not, we used a standard, stock Dooling engine - the only thing done was to file the exhaust stack flush with the outer edge of the cowl, matching its contours. A word of caution: when filing the stack, be sure to stuff it as well as the intake venturi with good clean rags, to keep filings from entering your engine.

One last design note : the hard-wood top of the engine cowl and the carved, integral rudder can and will absorb the roughest cart-wheels and turnovers without any injury whatsoever. The take-off dolly is standard Couch design, extremely simple to build. The side and top-view drawings will tal=ke care of any construction propblems. When fitting the dolly to the fuselage, be sure to compress the two prongs at least 1/4 in and indicate their compressed width..."

Update 17/06/2019: Added article, thanks to RFJ.

Supplementary file notes

Article.

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