Rolls-Royce Archives
         « Prev  Box Series  Next »        

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).
Performance increase from a 110° camshaft on various engines, referencing a 40/50 indicator diagram.

Identifier  Morton\M7\  img051
Date  21th December 1923
  
To R.{Sir Henry Royce} from Hs.{Lord Ernest Hives - Chair}
c. to CJ.
c. to RG.{Mr Rowledge}
c. to E.{Mr Elliott - Chief Engineer}
c. to Da.{Bernard Day - Chassis Design}
c. to OY.

Handwritten: X3056

Hsl/LG21.12.23.

40/50 INDICATOR DIAGRAM.

Handwritten: X3423 (struck through)
Handwritten: X3056 X4580

The tests given in the attached report were taken in connection with the 110° Camshaft which we have found to be an improvement on the EAC-1 and 20 HP. engines.

On the 40/50 HP. we have not obtained the same percentage increase with this Camshaft as we have on the other engines although it does give approximately 5% increase.

Further reports of tests will be sent in connection with this.

Hs.{Lord Ernest Hives - Chair}
  
  


Copyright Sustain 2025, All Rights Reserved.    whatever is rightly done, however humble, is noble
An unhandled error has occurred. Reload 🗙