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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).
Suitability of carbon steel for Wraith rear axle tubes, questioning the reliance on a single 10,000-mile test.

Identifier  ExFiles\Box 7\3\  X 602 Axle Rear-page54
Date  26th April 1938
  
Rm.{William Robotham - Chief Engineer}
C. Ds.
C. Ds/Hdq.
C. Ds/Tubes
C. Ds/X

602

BY.3/G.26.4.38.

WRAITH - REAR AXLE TUBES.

Referring to Da.{Bernard Day - Chassis Design}19/G.21.4.38 pointing out carbon steel rear axle tubes were fitted to the 10,000 miles car and have proved to be satisfactory, before actually ordering carbon steel tubes I should like to know whether any bumper tests have been carried out with this material.

I am not prejudiced against the carbon steel parts, but I do not consider we should make the change purely on the results of one 10,000 miles test.

BY,
  
  


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