Zip A Do Too (oz12704)
About this Plan
Zip A Do Too. Catapult glider model.
Quote: "The 'Zip-A-Do, Too' Catapult Glider Catapult Glider is getting to be popular in free flight competition. Although it hasn't yet edged out HLG for participation, many of us are no longer willing to tolerate the several days of pain after a weekend of tossing a glider into the air and are looking at Catapult with more interest. Vic Nippert's Zip-A-Do, Too is the top dog of outdoor catapult gliders, having won the event at the 1992 Nats.
If you've never flown catapult, the event is simplicity itself. As you can see from the attached drawing, Vic uses a loop of 1/4-inch rubber tied to the top of a dowel. The dowel is held firmly in one hand, the model is attached to the rubber band by the hook on the nose. Stretching the rubber band the same distance for each flight is important, as is the bank and launch angle of the model. When you let go the model streaks into the sky until it gradually loses energy and transitions into a circling glide.
I've found that a right/left or left/right pattern works best. Vic didn't specify which he used, but the washout on the right wingtip leads me to think he flew with left power and right glide.
Although the three-view is not full size, the dimensions should help you construct an accurate replica. As with any outdoor glider, it pays to put a sealer or smooth finish on the surfaces in order to minimize damage and keep out excess moisture. Good luck and good flying!"
Direct submission to Outerzone.
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