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).
Maximum fan size and radiator clearance for the Phantom III engine.

Identifier  ExFiles\Box 94\5\  scan0001
Date  8th October 1935
  
Make 7 X324 Please note
Steadman-
Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer}
E/JNR.{Charles L. Jenner}1/HP.8.10.35.
Rm{William Robotham - Chief Engineer}
Phantom 3 Fan.
In regard to the development of the above, it might be of help to you to know the room we have available on the engine when fitted with the Session's oil pump on the front of the camshaft.
Approximately a fan 21" diameter, 2" deep is the maximum size we can work in, which would give a clearance with the radiator of only .6. The depth of the Cadillac fan is 2.5".
E/JNR.{Charles L. Jenner}
  
  


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