Hi All .. From William Greens’ very well written book first published in 1957, “Famous Fighters of the Second World War” .. regarding the enquiry about the XP-51G engine installation, and I quote …..

….”Two further lightweight Mustangs were produced, designated the XP-51G. These were fitted with the 1,500 h.p. Rolls-Royce Merlin 145 which drove a five-bladed Rotol airscrew, and the XP-51G, which weighed only 8,879 lb., attained a maximum speed of 472 m.p.h., one (FR410) being supplied to the R.A.F. The designation P-51E was unassigned, but the development work on the lightweight Mustang materialized in the production P-51H which emerged towards the end of 1944, 555 being completed by V-J Day out of an original contract for 1,445 machines. The P-51H had a Packard Merlin V-1650-9 which delivered a maximum of 2,218 h.p. at 10,200 feet under war emergency conditions,” …….etc. etc……

…end Quote ..

….I’m fairly certain that these two machines were produced in the USA… with, as stated, one only being shipped to the R.A.F. for evaluation…

….I hope that is a bit of help with these interesting studies….Cheers

…Great work there Man .. Do you have a particular ‘plane that you would like to dedicate this wonderful project to ?….

…”Only” a few more feet forward and you could incorporate some wonderful nose art of your choice. She would be an even more incredible display.

…There are more images and details on the Aero Vintage Spares website, whom have it advertised for a while now. Quite a bit of kit there to get going with.

…I would think there is a skimpy, tenuous thread from having a Gustav originally kitted out as a trainer, and a Buchon pretending to be…. for the sake of having the “warbird” experience at great expense to the paying punter….

….A nod’s as good as wink to a blind bat, but it’s drawing a long bow to make a comparison to the original German machine….the side on (“elevation”) silhouette of both types are vastly different.