Bell P-39 Airacobra (oz211)

 

Bell P-39 Airacobra (oz211) by Walt Pyron from American Modeler 1959 - plan thumbnail

About this Plan

Bell P-39 Airacobra. 42in control line stunt by Walton Pyron.

Quote: "Acrobatic Airacobra, designed, drawn and described by Walt Pyron.

During the past few years changes in the AMA stunt pattern have made an exceptionally good flying airplane an absolute must. Although this Airacobra model possesses an amazing resemblance to its real counterpart, it was actually designed with good flying characteristics in mind. The general configuration of the real Bell P-39 offers many very desirable features for a high performance stunt model.

The tricycle landing gears make take offs and landings practically fool proof. By side-mounting the motor, semi-cowled fashion, a cool steady engine run was assured, plus easy accessibility. (Needless to say, a fully cowled engine can bring about a serious over-heating problem on those hot summer days.) I chose the British version of the Aira-cobra because of its beautiful multi-colored paint scheme.

As for flying, the Airacobra will fly as well as any stunt model out today, It is smooth and stable, and will turn on a dime. Now let's get down to the construction details.

Start by cutting out the 1/8in sheet balsa fuselage sides and doublers; cut both sides full length. Cut out the fuselage formers and secure the 1/8in steel landing gear wire to F-1 with 'J' bolts. After the doublers have been glued to the sides and they have thoroughly dried, glue the rear of the sides together with x 1/8 x 1/4 spacer between them. Glue the formers in place, working from the back of the fuselage to the front. Set this aside to dry, and begin wing construction..."

Quote: "also attached is a slightly different version of Walt Pyron's Acrobatic Airacobra which is already posted. This much cleaner plan is from American Modeler magazine issue 07-59."

Update 29/12/2016: Added a supplement alternate version of the same plan, by Uncle Willie (shows full wing layout), thanks to Bernd.

Supplementary file notes

Article pages, thanks to MikeDenest.

Previous scan version.

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Bell P-39 Airacobra (oz211) by Walt Pyron from American Modeler 1959 - model pic

Datafile:

Bell P-39 Airacobra (oz211) by Walt Pyron from American Modeler 1959 - pic 001.jpg
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Bell P-39 Airacobra (oz211) by Walt Pyron from American Modeler 1959 - pic 002.jpg
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Bell P-39 Airacobra (oz211) by Walt Pyron from American Modeler 1959 - pic Supplement_plan.jpg
Supplement_plan.jpg

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Download File(s):
  • Bell P-39 Airacobra (oz211)
  • Plan File Filesize: 828KB Filename: Bell_P-39_Airacobra_oz211.pdf
  • Supplement Filesize: 492KB Filename: Bell_P-39_Airacobra_oz211_article.pdf
  • Supplement Filesize: 519KB Filename: Bell_P-39_Airacobra_oz211_previous.pdf
  • Supplement Filesize: 603KB Filename: Bell_P-39_Airacobra_oz211_willie.pdf
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Notes

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Scaling

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