Ventilation
Just to refresh the conversation re the fan, I have the 1937 booklet on light tanks covering MkII to VI.
Strangely there are no mentions of a fan for the MkV or VI, there is not even a circuit for one shown on the wiring diagrams !!
A closer look at the drawings does not indicate where the air would be drawn in or expelled.....there is that cowling on the front top of the turret ???????
The bulge, I have a number of walk-round views of the turret, I had thought (stupidly) there may have been a small vent on the underside of the bulge....there isn't.
What I do not have is any internal views of the turret, Colin I believe you may have contacts with the museums in your part of the world, can they help in sorting out how the fumes were vented.
Of interest, some years ago the (British) Fox armoured car with the 30mm gun was taken out of active service as the HSE determined there was inadequate ventilation for the fumes......I guess HSE did not exist in the 30's and 40's !!!!!
George.
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