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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).
Work instructions for modifications to a Wraith car 25.G.VI, including brake, exhaust, and clutch mechanisms.

Identifier  ExFiles\Box 108\2\  scan0161
Date  30th September 1938
  
To HPT.

Rm{William Robotham - Chief Engineer}/Wym.{G. Harold Whyman - Experimental Manager}7/JH.30.9.38.

600.

Wraith car 25.G.VI.

We wish to send the above car into the fitting shop for the following work to be done.

(1) Fit damper to brake mechanism as per Rm{William Robotham - Chief Engineer}/AFM.{Anthony F. Martindale}3/R.12.9.38.

(2) Fit 12 S.W.G. mild steel exhaust downtake pipe as per Rm{William Robotham - Chief Engineer}/Wym.{G. Harold Whyman - Experimental Manager}3/JH.16.8.38. This pipe does not require any lagging.

(3) Make up and fit a new centre expansion box, similar in construction to the one already fitted, but using the following materials

Sheet and both end covers in staybright.
Centre baffle in staybright.
Three internal pipes in heat resisting perforated metal to be supplied by Rm{William Robotham - Chief Engineer}/Wym.{G. Harold Whyman - Experimental Manager}

(4) Standard clutch operating mechanism to GCD.798.

Rm{William Robotham - Chief Engineer}/Wym.{G. Harold Whyman - Experimental Manager}
  
  


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