Thanks Biggus that actually answers a query I had ages ago..
Many moons ago I purchased on evilbay some artwork that was a bit of a sleeper in the description, they were the original art works for some of the old Frog model kits, one of them was an early box art for the RN Barracuda, see below
The link you posted looks like it provides the original source material for the above picture.. what do you think?
and for the airborne aircraft