Bitty Viper (oz13864)
About this Plan
Bitty Viper. Control line 1/2A Proto Speed model.
Direct submission to Outerzone.
Update 4/6/2022: Added article, thanks to theshadow.
Quote: "Bitty Viper. Our well-named 1/2A Proto Speedster is a control-liner that will win a contest or give hours of fun hanging at end of the lines. Inexpensive too as the .049 engines go all-out in effort at minimum cost per mile. By Carl China.
1/2A Proto is the best thing that has happened to control line speed in years. True, a 1/2A proto model may be small-er, slower, less noisy, and have consider-ably less tug on the control handle than its more powerful predecessor - the Class B proto. Nevertheless, if you are looking for -a fun event, 1/2A Proto is for you.
The original Bitty Viper was built in 1965 and now has 91 flights to its credit. Weighing a relatively heavy seven ounces, it represents the author's 'first cut' toward the optimum 1/2A proto. As such the design does not yet have the advantage of many years of refinement. Even so, the performance and flying characteristics appear to bear the hallmarks of a thoroughbred proto.
With a stock Tee Dee .049, K&B Speed Fuel and a Tornado 5/4 nylon prop, Bitty Viper attains proto speeds of 70 to 77 mph and top speeds of 85 to 90 mph. Modified props of 4 and 5 pitch have been tried but only slightly faster speeds were obtained. The original model has been flown in six contests to date with the following results..."
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