Colt (oz16525)

About this Plan

Colt. Radio control sport model. Wingspan 45 in, for .09 to .15 engine.

Discontinued kit from SIG.

Note this kit used the SIG (tapered) foam wing. For a plan showing how to construct a replacement wing in balsa see: Sig Foam Wing (oz16499) thanks to MarkWinstanley.

Direct submission to Outerzone.

Update 23/1/2026: Added kit instructions, thanks to Johann.

Quote: "The Colt, quick and easy to build, is good for flying in con-fined areas or as an all-around sport model. Although it is not recommended as a trainer, it can be handled by relative-ly inexperienced pilots with low number of RC flying hours.

For best results, install 3 channel radio equipment in the Colt to operate the throttle, rudder and elevator. Or you can install 4 or more channel equipment and use only 3 of the channels (see note in Radio Installation section). The fuse-lage is large enough to carry a standard battery pack and servos. One or two channel equipment could be used in the Colt, but with less flexibility in control (rudder and elevator with 2 channels; rudder only with I channel). We do not recommend 1 or 2 channel operation except by fliers well experienced with that type of limited control.

The kit is arranged so that no separate full size plan is need-ed. The center section of the booklet does show some full-size patterns which will be helpful during construction. A preliminary study of the instructions and drawings of the construction steps will make it clear where several building operations may be accomplished at the same time. While one part is drying, another part can be started. References to right and left refer to your right and left as if you were seated in the cockpit facing forward.

Cut all long pieces of balsa first, followed by medium length and all short pieces last. Remove plywood die-cut pieces carefully. If difficulty is encountered, do not force the part from the sheet. Use a modeling knife to cut it free. Leave parts in the sheets until needed in construction.

A jig saw is best for cutting out the printed sheet parts. Cut just outside the lines, leaving all of the line on the part. When fitting a part into place in the structure of joining with an adjacent part, use the sanding block to bring the edges to an exact fit. If a jig saw is not available, a modeling knife may be used. Don't cut too close to the line, but leave enough margin to true up and finish the edge with a sanding block.

A piece of Celotex type wall board makes a handy building board, into which pins can be easily pushed. Lay the build-ing board on a table with a flat and untwisted top. Pins can be pushed through all pieces of balsa in the kit without any lasting harm. The holes will fill during sanding and doping.

The first construction requirement is to make (if you don't already have one) a large sanding block that will take a full sheet of 80 grit sandpaper. You will find it to be an almost indispensible tool for many operations.

Printed Fuselage Sides: The internal framework of the fuselage is built directly on the printed balsa sides. Cut out the right and left fuselage sides from the sheets. Don't cut too close to the printed outline, leave a little wood for trimming and sanding flush with the framework after it is glued in place on the side. Carefully join the two pieces that make up one fuse-lage side. Note that there is a distinct right and left. Match the connecting key letters accordingly.

Pin the fuselage sides down on a flat building board and glue the pieces of 3/16 sq. to the top and bottom of the fuselage side. Note that the bottom 3/16 sq piece stops at the back of the firewall location... "

Supplementary file notes

Instructions.

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