Cobra - plan thumbnail image

Cobra - completed model photo more pics (2)

by Dick Twomey
from Aeromodeller
May 1949 
48in span
Tags: Glider F/F
all formers complete :)
got article :)

This plan was found online 26/03/2013 at:
Outerzone planID: oz4164 | Filesize: 373KB | Format: • PDFbitmap | Credit*: algy2, TonyP


About this Plan

Cobra - Free flight hand-launch glider model.

Quote: - "Hi. Back to the 1940s with the May 1949 AEROMODELLER... The next free flight plans were for a British hand launched Sailplane record holder the COBRA by R.TWOMEY. This is a very elegant looking Sailplane with it’s upward rising wing platform, circular fuselage and high tailplane which can just as easily be flown from a tow-line. Mr Twomey said construction was very easy but it took me a while to work out how the fuselage went together. They were giants in those days. The plan was a 1/4 scale reproduction."

Update 07/04/2017: Replaced this plan with a clearer copy (patterned background removed) thanks to TonyP.

Supplementary files

Article page, text and pics.

Previous scan version.


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* 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.


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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