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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).
Listing fifteen technical improvements for testing on an experimental car in France.

Identifier  ExFiles\Box 69\4\  scan0073
Date  1st July 1926
  
To Hs.{Lord Ernest Hives - Chair} from R.{Sir Henry Royce}
c. to BJ. LHS.{Lord Herbert Scott}
c. to BY.{R.W. Bailey - Chief Engineer} PN.{Mr Northey}

+8770

R3/M2. 7. 26.

7-EX CAR. X.8992
X.8770 X.7770

The following recent improvements are for testing in France next Winter :-

(1) Correct auto:advance - metal piston.
(2) Hydraulic shock dampers - 80/40 or 100/50 as found best.
(3) Pistons e (unimportant) single bolt pedestal.
(4) Valves that will least cause self ignition.
(5) Alum. carb. with rbonze ring on air port.
(6) Red light on thermometer for bonnet.
(7) Steering - 2000 lbs.per in. buffer springs, and all ball joints spring loaded.
(8) Light axle - front.
(9) New tyres - semi-balloon.
(10) 2 level, 2 filter, back tank, and white faced gauge.
(11) Std. battery. P.& R.{Sir Henry Royce} or mixed half and half.
(12) Revised oil relief valves.
(13) Duralumin throttle disc.
(14) Cutout stop and latest mechanism.
(15) Switchbox altered to B. & M.{Mr Moon / Mr Moore} with O.{Mr Oldham} charge etc. Separate switch to cut out magneto.

----------

This car will do for me until we get lighter Phantom engine and chassis, EAL.7 & 9., when I shall hope to have a new body, perhaps of a different type.

R.{Sir Henry Royce}
  
  


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