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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).
Secret internal memo detailing the decision to retain double brakes and adopt a semi-servo system for new gearboxes.

Identifier  WestWitteringFiles\K\October1923\  Scan121
Date  13th October 1923
  
TO HS.{Lord Ernest Hives - Chair} FROM R.{Sir Henry Royce}

c. to CJ. BJ. PN.{Mr Northey}

S E C R E T.

E.{Mr Elliott - Chief Engineer} A.{Mr Adams} C.

x9310
x9320
x9360
x9940

RE. BRAKES & GEARBOXES.

We have decided that we shall retain double brakes on the back axles on all chassis, leaving no doubt about our system complying with the police regulations. We must stop work on the Goshawk side lever gearbox until we make a suitable box fitted with a "Servo" for four wheel brakes. This new box will be for side levers and will be exactly like the modified EAC. box which we are now redesigning.

We are adopting the semi-"servo" system for both chassis because we are assuming that the 20.HP. will be a favourite with ladies, who would not otherwise have sufficient power over the brakes.

R.{Sir Henry Royce}
  
  


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