Engine Cut-out for Spitfire Mk. V during Negative G?
Hi there!
I originally post this on IL-2 Sturmovik forum, but I think it's a question closely related to the handling and performance of Spitfires in Desert Wings. So I decide to re-post it here, to see if we can have a proper answer to the question.
I'm curious about the negative G engine cut-out feature, or the lack thereof, existed on Spitfire Mk. V. As far as I know the first RR Merlin engine installed with a Bendix Stromberg "negative-g" carburettor was Merlin 50, but most of the Spitfire Mk. V aircraft were installed with Merlin 45 & 46 engine, including those Mk. Vs modelled in Desert Wings series.
However as I remember none of the Mk. V model has the engine cut-out effect during negative G in Desert Wings, including the Mk. Va, which NACA claimed that there is a cut-out during negative G.
I'm aware that a quick solution was worked out somewhere during 1941 and 1942 to install a copper ring into the fuel valve, but that measure only deals with the risk of total flame-out when the aircraft is coming out of a negative G maneuver, preventing too much fuel flow flooding the carburettor. It cannot counter the initial cut-out when the aircraft enters a negative G maneuver.
The Spitfire Mk. Vb in IL-2 GB series has no engine cut-out too.
If there's anything else that I've neglected on this issue? If anyone has some better finding on this feature?
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