I've always been told that smooth tyres were used on unmade or grass airstrips as they were less likely to pick up debris and chuck it into delicate parts like radiators and flaps.
I think this goes back to Peter Cooke's research in the 1970s. He also established that the smooth tyre scrubbed very quickly when it was used on paved strips and this might explain why some late war pictures do show treaded tyres. You'll struggle to find a Merlin powered Spitfire sporting treaded tyres in Europe before 1945, though there may well have been some. Did some Aussie Spitfires have treaded tyres? For some reason I think they might have.
On a slight tangent I also noted a comment by Edgar Brooks a while ago that Typhoons struggled on PSP with their smooth tyres, maybe Spitfires also had trouble on the stuff.
Cheers
Steve
I think this goes back to Peter Cooke's research in the 1970s. He also established that the smooth tyre scrubbed very quickly when it was used on paved strips and this might explain why some late war pictures do show treaded tyres. You'll struggle to find a Merlin powered Spitfire sporting treaded tyres in Europe before 1945, though there may well have been some. Did some Aussie Spitfires have treaded tyres? For some reason I think they might have.
On a slight tangent I also noted a comment by Edgar Brooks a while ago that Typhoons struggled on PSP with their smooth tyres, maybe Spitfires also had trouble on the stuff.
Cheers
Steve
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