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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).
Frame shaking issues on the 1.B.50 model due to oscillation frequency and proposed alterations.

Identifier  ExFiles\Box 112\2\  scan0106
Date  20th September 1938
  
827 and H27

EPS. from Rm{William Robotham - Chief Engineer}/AFM.{Anthony F. Martindale}
c. Roy{Sir Henry Royce}/Les.{Ivan A. Leslie}

Rm{William Robotham - Chief Engineer}/AFM{Anthony F. Martindale}4/R.20.9.38.

B.III & B.50 FRAME.

We have run into trouble on 1.B.50's frame. The vertical oscillation frequency corresponds to the tyre bounce frequency and 1.B.50 shakes very badly in consequence.

We are going to make certain alterations to 10 B.V's frame to see how we can stiffen it. We will not scrap the frame, it can be built into a car later.

7.B.V has a welded frame and this does not shake.

Rm{William Robotham - Chief Engineer}/AFM.{Anthony F. Martindale}
  
  


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