He was a fighter plane "wrench" stationed in Britain,though my expertise leans more towards American fighters using the Packard variant of that engine.He called it "The Timber Terror"..lol.I still have vintage engine manuals he gave me 50yrs ago for the Packard Merlin(P51) and Wright 2800 radial(P47 Jug).
Yes,the Mossie was most impressive but the Rolls Merlin engine that powered it did not make it excel until the American company,Packard re-engineered it.
As you probably know,Britain offered a license to manufacture the engine to American car companies.Henry Ford had the contract locked up until he divulged his Libertarian nature by saying he would produce it only in defence of The USA(good for him).General Motors was also turned down.
Packard Motor Car Co. got the nod due to their reputation for excellence of engineering:("sure,we'll build it for ya.Just give us carte blanche")The result was a world beater that won the war!!
The inovations they made include what my uncle called "The Prestone Cooler" which helped cool the intake mixture from the dual stage supercharger Packard developed.There's also changes to engine bearing material that improved reliability.
aircraft and particularly "The Wooden Wonder" or "The Termite's Dream" the virtually all plywood de Havilland Mosquito which was flown by the RAF, RAAF, RCAF, RNAF and the USAAF (Britain, Australia Canada Norway and the US.)
While delving into Wikipedia I came across this statement:
"In England, fuselage shells were mainly made by the furniture companies Ronson, E. Gomme, Parker Knoll and Styles & Mealing. The specialized wood veneer used in the construction of the Mosquito was made by Roddis Manufacturing in Marshfield, Wisconsin, United States. Hamilton Roddis had teams of dexterous young women ironing the (unusually thin) strong wood veneer product before shipping to the UK."
So despite much of the Birch being cut in Ontario as well as Michigan, Wisconsin etc, all of it was shaved into thin, thin individual sheets by one US factory in Wisconsin. And then every sheet was ironed flat. The mind boggles.
The USAAF only used the Mozzie as a Photo Reconnaisance aircraft, and after his stint in the USAAF Bomber Corps, Jimmy Stewart had his own Mozzie for PR sorties.