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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).
Status update on various engineering schemes and detail drawings for the 20/25 HP car.

Identifier  ExFiles\Box 101\4\  scan0038
Date  8th May 1935
  
Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer}
C. Wor.{Arthur Wormald - General Works Manager}
C. L.
C. RHC.{R. H. Coverley - Production Engineer}

X500a
BY/Cgh.{W Clough}27/G.8.5.35.

15,000 MILES 20/25 HP. CAR.
---------------------

With reference to Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer}2/KW.3.5.35. the position in regard to the schemes for the above is as follows :-

(1). 20/25 rear axle with Hypoid gears.
Detail drawings have been completed and are being issued immediately.

(2). Isolated change speed lever.
Scheme just received, and detail drawings will be completed in 7 days' time from now, but we require further design information to complete the work.

(3). RR. Marles Steering.
Detail drawings for the steering column were issued 26.4.35.
Scheme just received for engine controls, detail drawings for which will be issued within 7 days from now.

(4). Noise insulation scheme.
Detail drawings will be completed and issued on the 15th inst.

(5). Water excluders on front brakes.
Detail drawings will be completed and issued on the 15th inst.

(6). Crankcase breather to LeC.4438.
Detail drawings completed and issued 9.4.35.

(7). Geared starter motor.
The present position of this on the lower half crankcase causes the starter motor to foul the brake equalising gear on the clutch casing, therefore we are looking into
  
  


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