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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).
The RAF's requirement for a 200 HP output from a Phantom III Gliding Winch engine.

Identifier  ExFiles\Box 175\2\  img056
Date  9th February 1941
  
S E C R E T.

To Ev.{Ivan Evernden - coachwork}/JD.{J. Draper - Frames} from Rm.{William Robotham - Chief Engineer}
c. to Rm{William Robotham - Chief Engineer}/CTS.{C. Trot Salt - Carburation}

FILE [Handwritten in a box]
2006 [Handwritten]

Rm.{William Robotham - Chief Engineer}14/SW.9.2.41.

Gliding Winch.

We note that the RAF's requirements call for a 200 h.p. output from the P.111.

We propose to give them a standard output to start with and in the meantime, should like Rm{William Robotham - Chief Engineer}/CTS.{C. Trot Salt - Carburation} to go through the P.111 bits in the Stores, and see if there are any induction systems, camshaft or high compression pistons, which might later be utilized to increase the power output of this engine.

Rm.{William Robotham - Chief Engineer}
  
  


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