From JOHN HUMBACH
Illustration (omitted)
Clearly Norman Jenkins does not ride a motorcycle (Letters, 24 July).
If he did he would notice, every time he stopped at a traffic light, the
blast of heat rising from the engine. He would not be able to touch the
engine casings of even a 250 cc engine at idling speed, let alone the exhaust
pipes. There’s plenty of heat there. What it says about the efficiency of
the petrol engine is another matter.
John Humbach HQ NATO BFPO 49
