how do you throttle back when the engine has died, as it should in a developed spin with a carbureted engine.?
Standing by to be corrected but I am of the belief that the carburettor on the Merlin engine was capable of still delivering fuel to the engine even in cases of negative G.
It was not originally the case but modifications were made early in the 1940`s.
`Miss Schillings orifice` springs to mind.
Paging
Centaurus for further clarification.