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Chassis frame testing, detailing measurements and observations on deflection under load.


Identifier  ExFiles\Box 8\4\  04-page043
Date  4th July 1912 guessed
  
-3-

Height of frame at front 23.75"
Height of frame at rear 23.55"

All the above chassis were fitted with
895 x 135 wheels and large flywheels.

Mr Platford observed during
these tests that although the frame
was correct to drawing both before and
after the tests yet while under load
the joggle of the side members at the
rear end of the frame had an upward set
of 1/8". I understand that Mr Spinney
is arranging for the side members of
future cars to have a 1/8" initial set down-
ward so that the frame will be correct/ when
under load.

Mr Platford points out that
this deflection of the frame while under
load may not actually take place when a
proper body is fitted, as the load will
then be distributed more evenly over the
  
  
From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).


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