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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).
Power reduction from a choke valve and a seasonal overheating issue in Australia.

Identifier  ExFiles\Box 24\5\  Scan028
Date  1st May 1925
  
R.R. 493a (50m) (D.B. 175 25-9-24) J.H.D.

EXPERIMENTAL REPORT. -3- Expl. No. REF:Hs{Lord Ernest Hives - Chair}2/LG1.5.25.

various speeds, the maximum reduction in power which can be measured due to the choke valve being inter-connected with the throttle is 7% or 8%. This, of course, could be avoided with a slight alteration to the levers operating the valve.

BOILING.

Over-heating is a reasonable complaint and it is probable that as the summer is nearly over in Australia, the trouble will disappear whatever is done.


Hs.{Lord Ernest Hives - Chair}
  
  


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