Rolls-Royce Archives
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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).
Gearbox issues, including a 'clonk' sound, complicated gear changes, and proposals for gear improvements.

Identifier  ExFiles\Box 15\5\  Scan199
Date  31th March 1931
  
(3) Hs{Lord Ernest Hives - Chair}/Lid.{A. J. Lidsey}4/KT.31.3.31.cont.

(b) A big "clonk" from the toggle mechanism each time the gear is changed.

(c) The combination of ahving a gear change by gear lever and from the steering wheel is very complicated, it is necessary to exercise much more conscious mantal effort than when driving a normal change speed equipped car.

In its present form this gearbox is very much less fool proof than the Maybach hand controlled scheme recently fitted up on 14-EX.

The epicyclic gears were not ground, we are trying to get ground gears. The helical gears can also be ground. We are also altering the angle of the Maybach jaws, at present these are too steep.

Hs{Lord Ernest Hives - Chair}/Lid.{A. J. Lidsey}

Hs.{Lord Ernest Hives - Chair}
  
  


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