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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).
Outlining proposed design changes for the Phantom and 20 HP Magnetos.

Identifier  ExFiles\Box 65\3\  scan0004
Date  10th December 1926
  
HS{Lord Ernest Hives - Chair})
To EFC)FROM R.{Sir Henry Royce}
BY )
c. to BJ.

X7791

RL/M10.12.26.

PHANTOM MAGNETO. X.7791.

Mr. North promises a more silent magneto, and one which affects the control less.

There is to be -
No magnetic effect, due to absence of sleeve, and the machine is to be equally as reliable as the present model.

The new points are :-
(a) Larger armature and no sleeve.
(b) Laminated extended pole shoes.
(c) Plain bearing to distributor wheel.
(d) Bakelite wheel and pinion.

x 5790 20 HP.MAGNETO.

All this also applies to the 20 HP. magneto, except the gearing.

R.{Sir Henry Royce}
  
  


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