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Raymond Cutler's
1949 car was, in most
respects, conventional and followed the lines of the early Coopers. However, it did
feature shaft drive from the JAP engine to the rear wheels at a time when
nearly all 500s used chains. Initially this used a lightened three speed
Morris gearbox and Fiat differential but a heavily modified Norton box was
later substituted. Neither arrangement proved successful, partly due to the
inherent problems with an extremely short drive shaft and partly as a result
of the power losses inherent in a shaft drive system. It was however built
to a high standard, Ray producing his own Elektron wheels with integral
brake drums. Ray managed a respectable sixth at
Silverstone in September '49 then fourteenth at Prescott, ninth at
Shelsley and nineteenth at Weston Super Mare. The car was for sale by August
1950 but Ray took a second in his heat and fourth on aggregate at
Silverstone in September and it was not sold until an auction in the late
1950s. We do not know of it's current whereabouts.

Above, Ray Cutler at Shelsley in 1950 (possibly 10th June) with his wife
looking on. Photo Courtesy Raymond Cutler. Below, the rear of the Cutler showing the JAP engine, mounted sideways,
with gearbox behind.

Chains are Crude!
Mr. R. H. Cutler of Streetly, Birmingham, writes: I would like to pass my
opinion as an engineer and amateur " 500 " builder on some of the points
raised in your article on Chain Drive in the January issue. The chain
drive to my mind is a crude means of doing the job and has a very
uncertain length of life, coupled with the fact of harsh treatment being
stressed on the supporting members ; namely chassis frame and engine
mountings. If the engine and gearbox could be placed on thick blocks of
rubber no doubt fractures would not occur, but the chain drive will not
allow this, unless the engine, gearbox and final-drive sprocket are made
up as one unit, so as to eliminate any independent movement of the
abovementioned components. The shaft drive lends itself admirably to
rubber mounting, and to my way of thinking is the right and reliable means
of final drive . After all, reliability is what one seeks with the " 500 "
racing car, if it does mean sacrificing a little efficiency at the rear
end. What is more annoying than to enter into an event, complete one lap
and finish by the wayside just because a chain has broken—come off or
perhaps one of the numerous sprockets come loose? Anyway, I intend to
continue with shaft drive for the forthcoming season, after modifying the
crown-wheel and pinion and utilising a differential . In passing, I wonder
if " Iota " could publish the difference in efficiency between the chain
and a straight tooth bevel crown-wheel and pinion. - Extract from Iota
February 1950.
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