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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 problems and proposed improvements for the Phantom II model.

Identifier  ExFiles\Box 65a\3\  scan0169
Date  14th November 1929
  
X7770

To Wor.{Arthur Wormald - General Works Manager} from Hs.{Lord Ernest Hives - Chair}

Hs{Lord Ernest Hives - Chair}2/AD14.11.29.

X7770
X5770
X4657.
X4674.

PROBLEMS WHICH NEED ATTENTION.

PHANTOM II

(1) Torque reaction vibration.
The first line of development is to find why cars made to the same design vary.

(2) 48 mile period bus knocks.
We are expecting these faults to be considerably reduced with the new slipper wheel which will come on standard in December.

(3) Satisfactory exhaust heated carburetter.

(4) Permanent cure for silting up of radiators.

(5) Reduction of noise from carburetter.
We have modified the carburetter which promises a big improvement.

(6) Reduction of noise in exhaust.
We have a new exhaust system. So far the improvement is not definite.

(7) Extra oil to cylinders.

(8) Radiator shutters with automatic control.

(9) Improvement in clutch.

(10) Modification to brake leverage.

(11) Alteration of wheel diameter from 21" to 20".
This is demanded because of the increase in tyre sizes by the tyre makers.
  
  


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