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Frame deflection measurements with notes on strengthening and clearance.


Identifier  ExFiles\Box 99\2\  scan0191
Date  4th April 1939
  
-2-

RM {William Robotham - Chief Engineer} /LES.J/RM. {William Robotham - Chief Engineer} 4.4.39.

Point. Deflection. One body bracket (L) removed. Two body brackets (L&M) removed.

A 0.035"
B 0.065"
C 0.090"
D 0.120"
E 0.200" 0.215" 0.220"
F 0.010" -0.010" -0.020"

These figures show that the portion of the frame which requires strengthening is rearwards from the spring shackle cross member.

It can be noted that the removal of body brackets L and M make no improvement in the required clearance between the rear end of the frame and the body for jacking.
  
  
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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