Indoor Champion (oz6325)

 

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About this Plan

Indoor Champion. Indoor rubber model.

Quote: "Here's the lowdown on the Class B World Record holder of the Cabin ROW event at the 1946 Nationals. Built by the Dean of Indoor Models himself. Indoor Champion, by Merrick Andrews.

THIS CLASS 'B' fuselage model is the result of many years of experimentation and embodies many ideas not generally used be the model builders of today. The stressed body construction, commonly called the Warren Truss is stronger, lighter, and easier to make than the more popular paper-braced body. The wing bracing is used not only to strengthen the wing, but, also, to provide a positive method of flight adjustment, which is totally lacking in the majority of the fuselage models seen at contests. Construction of this model should start with making a full size layout, on either a smooth-faced wooden board, or a piece of heavy cardboard. All parts of this model, unless otherwise mentioned on the plan, are made from four to five lb balsa wood, and the letters QG on the plan specify quarter-grain wood.

The Fuselage. Cut four strips 1/20 in square by 12 in long, then place two of these on the side view of the fuselage, and, with either weights or pins, curve the strips to the shape shown. Before cutting the cross braces, be sure you can visualize how the compression and tension braces are to run. The compression braces should make one continuous line around the body, going from right to left, from the front to the back of the fuselage, and the tension braces should run from left to right. For each cross brace shown on the side view of the fuselage you should cut four braces, consisting of two compression braces 1/20 in square, and two tension braces 1/32 square, the end braces being 1/20 square by 3/8 in long.

Two sides of the fuselage should be made. Make sure the joints are well glued, then join the two sides with the end braces, and insert the other cross braces while spreading the two sides apart.

The nose plug is made as shown on the plan. The 1/20 thick by 3/8 square piece must be a snug fit in the front of the fuselage. This is glued on a piece 1/32 thick by 1/2 in square. Then the four 1/64 thick pieces are glued on the front to form a pyramid. Glue the two washers on the front, and one on the back, lining them up with .014 wire. The rear plug is made as shown with an .014 wire hook bent to provide a large cementing surface on the rear of the plug..."

Supplementary file notes

Article.

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  • Indoor Champion (oz6325)
  • Plan File Filesize: 268KB Filename: Indoor_Champion_FM_1947-06_oz6325.pdf
  • Supplement Filesize: 881KB Filename: Indoor_Champion_FM_1947-06_oz6325_article.pdf
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Notes

* Credit field

The Credit field in the Outerzone database is designed to recognise and credit the hard work done in scanning and digitally cleaning these vintage and old timer model aircraft plans to get them into a usable format. Currently, it is also used to credit people simply for uploading the plan to a forum on the internet. Which is not quite the same thing. This will change soon. Probably.

Scaling

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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