Landships II

No I'm not talking about the recent tropical weather in the UK and California (or even the therms generated by some recent discussions on this forum, a major threat to the melting of the glaciers ) but the heat in WW1 tanks. I guess that we are all aware of the heat problems in the Britsh Mk V, I have recently unearthed references to similar problems in the Whippet (driver's wheel becoming too hot to use with bare hands) and the A7V (sometimes 140F inside). Did this apply elsewhere - what was the climate in an FT? Did one sizzle in a Schneider? etc. Anybody know? Its actually an important element in the efficiency of the tank as crew comfort can seriously impact on combat capability (for example  in WW2 in a prolonged combat situation Soviet tank crews became less efective than German as they fatigued faster as less concern had been made over crew comfort in Soviet tanks).

BTW with reference to Mk Vs I've now learnt that on those with the engine encased and a roof vent fitted the heat reduced from 120F plus to somewhere in the 80Fs - still mighty uncomfortable but livable one wonders why not all Mk Vs were so converted BTW2 I've also found that the air for cooling the enclosed engine was driven by blades welded to one face of the fly wheel - a somewhat ingenious solution. Were there any other attempts to cool tanks?