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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).
Requesting to fit front aluminium drums to car B.23.AE due to overheating issues with the old iron drums.

Identifier  ExFiles\Box 90\1\  Scan202
Date  29th December 1937
  
To HPS.{Horace Percy Smith - Experimental Factory Mgr} from Rm{William Robotham - Chief Engineer}/AFM.{Anthony F. Martindale} X 263 Rm{William Robotham - Chief Engineer}/AFM.{Anthony F. Martindale}8/MH.{M. Huckerby}29.12.37.

B.23.AE FRONT BRAKES.

B.23.AE has a high percentage of front braking due to levers Rm.{William Robotham - Chief Engineer}303 and a high output servo, and the present old type iron drums are not able to absorb the heat generated without allowing the servo to reach its stop rather frequently.

Will you please fit to this car the front alum-inium drums recently taken off 1.b.IV, using the races now on B.23.AE.

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


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