hi!
i designed the plans for a coro extra 300.... i dont know how it will workout as i havent tried it myself, but here are the plans, so if your free, you can make it.... they are very rudimentary and just tell you what to cut the coro into....
also i am putting a large strip of ply wood through out the wing for  strength will post build photos later...

reviews wanted...
thanks,
aniket

FILE TOO LARGE, PLEASE USE DROPBOX LINK
DOWNLOAD:- https://www.dropbox.com/s/jrfz367qsyli9yz/extra.pdf

Any particular reason why you would want to reinvent the wheel? A perfectly good plan for the Coro Extra 300 S already exists for all to download and build.

http://www.rcindia.org/electric-planes/samurai-my-extra-300-spad/

@VC mine is an attempt at a more "scale" model.... uploading some screenshots....

...

Thanks! That is EXACTLY what I wanted the others to know - that this is a full scale model plan, whilst the others are just for profile models. Well done Aniket!