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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).
Expressing the opinion that the 20 HP dynamo provides insufficient current for the lights and ignition.

Identifier  ExFiles\Box 165\6\  img216
Date  16th November 1929
  
M.P. HARD PINS - X5661

EFG. }
Hs.{Lord Ernest Hives - Chair} } FROM R.{Sir Henry Royce}
Ev.{Ivan Evernden - coachwork} }

Copy to Sg.{Arthur F. Sidgreaves - MD}
" " Wor.{Arthur Wormald - General Works Manager}

R1/M16.11.29.

20 HP: DYNAMO.

X5661
X5664

Judging from my experience on 16-G4 I am of the opinion that the 20 HP. dynamo gives insufficient current to maintain all lights, and ignition,

R.{Sir Henry Royce}
  
  


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