Gull Wing (oz3176)

 

Gull Wing - plan thumbnail image

About this Plan

Gull Wing. Free flight gas model.

Quote: "Build the Gull Wing, by Paul W Lindberg, Model Editor and Designer.

THIS month's article deals with the building of a gas model that has been put through extensive flight tests. Many late features have been built into this model, such as removable wing panels for ease of carrying, as well as for preventing damage to wings in case of an accident.

The landing gear is of the rugged cantilever type. All tail surfaces are adjustable. Ailerons may be built into the wings if desired, although these are not necessary and the trimming tab made from aluminum approximately 1 x 4 inches will serve the purpose. The builder will find this model extremely simple to construct.

Any 'D' class motor is suitable. However, it will also operate on certain 'B' class motors. By increasing the plan five times the size shown on the opposite page, the model will be the same size as the one we have constructed. To increase to the size desired, all that is necessary is to use an ordinary pair of dividers and lay your plans out on paper or boards.

In constructing the model it is advisable to begin with the fuselage. Correct sizes are shown on the plan. Build the two body sides first and, after they have been completed, remove from the surface on which they were constructed and cement in all horizontal members. Pins or tiny brads may be used to aid in the construction. The formers next are cemented into position after having been cut to size.

The fire wall is made from three-ply veneer 1/8 inch in thickness. Next apply stringers over the top of fuselage. The gull section of the wing now is built into the fuselage. This will require a little time, as reinforcements must be added for strength. Sec that all joints are properly cemented.

The landing gear is made from piano wire inch in diameter, front part only. The rear is 1/16 inch piano wire. These arc thoroughly tied in with heavy thread and cemented. Adding the balsa fillet is optional, although we believe it adds much to the ship's appearance. If the fillet is added, wrap over wire and balsa with bamboo paper strips for strength, using a coat of dope between each wrapping.

Rubber or balsawood wheels may be used, three or 3-1/2 inches in diameter. The motor cowl is built up from sec-tions of balsa. Hollow these out so as to make as light as possible. As the cowl is mostly for display purposes, it is not absolutely necessary to cut the correct opening for cooling: although, if made as shown on the plan, the motor will cool properly, The motor mount, gas tank, installation of coil, etc, are clearly shown on plan. Study these carefully and you will find very little trouble in their construction.

The wings also are built upon a flat surface to prevent warping. In build-ing the wings, it is necessary that you cement in all bracing as shown on plan so as to gain the required strength. Note that ribs II and B are a full !A inch thick so as to prevent the paper from buckling these ribs. The tail surfaces are par-ticularly simple to build. They both are of the flat section type and all tips are made from 3/16 inch sheet balsa. This type of tip is much easier to construct and causes less difficulty when repairing..."

Update 08/04/2019: Added article, thanks to Pilgrim.

Supplementary file notes

Article.

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Gull Wing - completed model photo

Datafile:
  • (oz3176)
    Gull Wing
    by Paul Lindberg
    from Popular Aviation
    March 1940 
    78in span
    Tags: IC F/F
    all formers complete :)
    got article :)
  • Submitted: 02/08/2012
    Filesize: 1080KB
    Format: • PDFbitmap
    Credit*: 50+AirYears

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  • Plan File Filesize: 1080KB Filename: Gull_Wing_1940_Lindberg_oz3176.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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