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Mercedes engine, OM65, in 1911 Dennis Fire engine 26 May 2022 16:23 #235389

  • Lang
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Poms can't help themselves. Of about a dozen shots of tape measures not one dimension is an even inch or even half an inch. I have never worked out the British fascination with 37/94ths.

I think it has to do with the class structure. The engineer works out the structural integrity required to support the load which comes to say 4 43/87" on his slide rule. The draftsman being a lesser mortal is terrified of the engineer and refrains from making the drawing 4 1/2" thereby consigning the pattern maker, construction line and mechanics for the next 30 years to a world of pain.

Lang
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Last edit: by Lang.

Mercedes engine, OM65, in 1911 Dennis Fire engine 30 May 2022 22:04 #235565

  • Zuffen
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You need to remember the wheels are Metric.

Just the way they evolved.

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