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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).
Ongoing servo troubles, specifically 'shudder', and the need for design modifications on senior range cars.

Identifier  ExFiles\Box 152\2\  scan0281
Date  2nd February 1944
  
Confidential.
1294
To: FJH{Fred J. Hardy - Chief Dev. Engineer}/MHR.{M. H. Rigby} from Rm.{William Robotham - Chief Engineer}
Rm.{William Robotham - Chief Engineer} 3/h.{Arthur M. Hanbury - Head Complaints} 2.2.44.
c. to Wym.{G. Harold Whyman - Experimental Manager} c. to FJH.{Fred J. Hardy - Chief Dev. Engineer}
Handwritten notes: EH Chassis Servo general.

SERVO FOR SENIOR RANGE CARS.

I am informed that the servos on Lp{Mr Lappin}'s car and Hs{Lord Ernest Hives - Chair}' car give more or less continual trouble and take a good many man-hours to service.

The main trouble is 'shudder'. This is due to water and has, in the past, been due to oil leaking from the gearbox. I think we are justified in making the necessary design modifications to make the servo reliable and producing the necessary pieces to fit to these cars.

I should like a report from MHR.{M. H. Rigby} on the present servo position so that we can talk round it and decide what drawing is required. I know that we have been contemplating a star spring on the servo for a long time. 3 B.50. servo has given remarkably little trouble in 85,000 miles and I should like to know in what way - if any - it differs from that on Lp{Mr Lappin}'s car.

Rm.{William Robotham - Chief Engineer}
  
  


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