It’s a IIIF. If that is a D on the fin it’s possible it’s S1502 a IIIF MkIIIB of the School of Naval Co-operation at Lee on Solent. The Seal had a Jaguar engine.
John
It is the BA Double Eagle which was tested at Martlesham. The SAAF used one for photo recon.
John…………The floor is yours.
We would be very interested if you could come up with anything.
John
This is the best I could do at this time. Copyright Putnams Supermarine Aircraft since 1914 Andrews and Morgan.
John

Noo, but it does look a bit like it:)
John
This is interesting as I am engaged in a parallel dicussion on the markings of 607 and 608 Sqn’s on Britmodeller at this time.
John
Noo, but it does look like it.
John
I’m sure the guys would like to see your subject, may I suggest that if I beat the “panel”
with this one (which I doubt ) you could shove it in after this. What’s the concensus?
John
One for the pot. How many play this silly game but don’t normally post?
John.

What diameter prop would you have to have. how would you extend the u/c legs for clearance and that narrow track would be fatal and re-engineer the bays to take the longer legs. Sorry pointless exercise in my opinion. The developed “big ” Spits weren’t entirely happy bunnies. even the contra’s had to have larger rudders.
John
Boeing A213 Totem
John
Not facing forwards.
John
I have 27 reasons for letting someone else take this one.
John
They also made the Hillson Praga (licence built Praga Baby) and their own Pennine and Helvellyn light types.
John
The weapon looks more like a rear fitted, flexible Colt Browning 30/303 especially if it had a pistol grip at some time. Some Wellingtons were fitted with beam guns as were Sunderlands but these were usually Vickers K. The Liberator II used beam defence twin 303’s (FN 65 mount). My gut feeling is it’s from an American type. The muzzle is of the non flash hider type, which again makes me think it’s american.
John