About this Plan
Crackerjack. Control line profile model.
Quote: "Make this fast control-line model from plans or a kit. Crackerjack, by Paul Del Gatto.
This just about the peppiest little half-A control-line profile model we've ever had the pleasure of doing. It wings around at high speed on 30-ft lines and is capable of performing maneuvers usually associated with profile models twice its size and power. You can assemble it in no time from the kit we've made available or build it from scratch by following the plans.
If you decide to follow the plans, lay out the parts on sheet balsa, cut them out and sand the surfaces smooth. The trailing edges of the wing are cut sep-arately and they are cemented in place after the main section of the wing has been cemented in the fuselage profile. However, before installing the wing, bend the landing gear strut from diameter wire and cement it in place. Reinforce the strut by binding it with thread passed through the fuselage and cementing gussets at the rear.
When the wing is in place and the leading and trailing edges have been rounded, add the nacelle formers. Then mount the engine on the plywood firewall and cement it in place against the formers and the fuselage profile. Complete the nacelle by cementing all side pieces in place.
Next assemble all the parts which make up the complete tail assembly and cement them in place. Bend a lug to form the control horn or cut one from tin can stock to similar proportions and cement it to the bottom of the elevator. Then add the wing tip fences, strut fairings and wheels.
The cowl can be formed from thin metal or stiff cardboard; each serves the purpose admirably. Cut it to the pattern outline shown on the plan and mold it to blend in with the firewall and spinner, if a spinner is used. Once the desired contours have been attained, pin and cement it in place, using contact cement or any adhesive recommended for metal.
For a finish we recommend undercoat-ing with at least two coats of thin dope, sanding the airplane smooth with fine sandpaper between each coat. Then apply two to three coats of colored dope of your own choosing to all surfaces. More dope can be added to obtain a very lustrous finish, but the added weight may prove a detriment to the model's flight performance. Once the colored finish has been applied, add the other remaining trim and decals."
Direct submission to Outerzone.
Quote: "Hi, I found this plan in the Mechanix Illustrated Jan 1957 issue when I was a kid. This plan is the reason I am into RC modelling and 30 years later I am still building and flying models. Today an original copy is in my living room. I am sending you a digital copy, the best I can, I am afraid I can't scan and resize it so if you can please do. It is a nice little Control Line model for 049 engines. Regards from Greece,"
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This model plan (like all plans on Outerzone) is supposedly scaled correctly and supposedly will print out nicely at the right size. But that doesn't always happen. If you are about to start building a model plane using this free plan, you are strongly advised to check the scaling very, very carefully before cutting any balsa wood.
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