Miles M.20 (oz11572)

 

Miles M.20 (oz11572) by Paul Kohlmann from Model Aviation - plan thumbnail

About this Plan

Miles M.20. Radio control scale model of the WWII fighter prototype.

This plan is a free download available from the Model Aviation site at http://modelaviation.com/m20fuselage where it appears along with links to the full build text (in 11 parts) and some great build pics. Also a free download of the plan in tiled format.

Quote: "Building the Miles M.2,0 by Paul Kohlmann.

This series has certainly been a wild ride! I initially was given the opportunity to write a few how-to articles on basic balsa building techniques. Since then, Model Aviation has thrown in free, downloadable plans for my 45-inch Miles M.20 design.

The M.20 will be the foundation for the next several installments of the MA Construction Series. In keeping with the original intent of this series, the subject matter will focus on generally useful techniques rather than step-by-step instructions for this model.

For anyone in need of detailed building instructions for the M.20, a build log can be found on RCGroups at https://www.rcgroups.com/forums/showthr....

Tail Group Laminated Outlines: I’d like to say that I jump into new projects head first, but honestly, I usually begin with the tail. The tail group builds quickly, so you can get plenty of satisfaction out of a small investment of time.

This M.20 design uses laminated outlines for all of the tail parts for strength and light weight. This process began by laying plain paper over the plans and tracing the shape of the tail parts. 3M spray adhesive adhered the paper with the outlines to a sheet of foam poster board. An X-Acto knife or scroll saw can be used to cut along the outlines to create a foam form. A layer of clear tape over the edge of each form prevents glue from sticking to them.

Next, twelve 1/16 x 3/16 x 18-inch strips were cut from sheet balsa and soaked overnight in water. That’s enough strips for three plies for each of the three tail parts, plus a few spares. A splash of ammonia helps the wood absorb the water quicker.

When the wood has softened, it can be wrapped around the form. Pin one end of the first strip to the foam form, then pull tightly on the free end and wrap the strip around the form. Keeping it tight prevents cracks. Pinning as you go keeps the strip snug against the form.

Add glue to one side of the next strip and repeat. Carpenter’s glue works well with the moist wood and it will be easy to sand later. Keep the strip tight and move the pins from the front...

Note a laser cut short kit is available from Manzano Laser Works see http://manzanolaser.com/Miles-M20--Sport-scale-WW2-British-Fighter-Model-Airplane-Kit_p_3122.html

Note also see link thread on RCGroups at https://www.rcgroups.com/forums/showthread.php?2322964-Miles-M-20-now-a-free-downloadable-plan-from-Model-Aviation-short-kit-from-Manzano

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Miles M.20 (oz11572) by Paul Kohlmann from Model Aviation - model pic

Datafile:

Miles M.20 (oz11572) by Paul Kohlmann from Model Aviation - pic 003.jpg
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Miles M.20 (oz11572) by Paul Kohlmann from Model Aviation - pic 004.jpg
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Miles M.20 (oz11572) by Paul Kohlmann from Model Aviation - pic 005.jpg
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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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