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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).
List of design modifications and their completion status.

Identifier  ExFiles\Box 30\4\  Scan321
Date  20th June 1935 guessed
  
(3)

ITEM. DESIGN POSITION.

Hydraulic jacking system - front and rear. In hand.
D.W.S. permanent mechanical jacks - front and rear. Completed.
Modified appearance of steering column controls. In hand.
Modified crankshaft balance weights. In hand.
I.F.W.S. Auto lock shock damper. In hand.
Alternative design of front stabiliser including front crossmember. In hand.

Improved damper hand control valves. In hand.
4 to 1 ratio rear axle gears. Completed.
Rigid attachment of dash to scuttle. Completed.
Stiffened clutch cover. Completed.
Bonnets - dummy louvres and sloping shutters - suitable for all body types. Completed.
Modified petrol tank. Completed.
More accessible engine oil filler. Completed.
Engine breather pipe. Completed.
Exhaust manifold - no cooling ribs - thicker walls. In hand.
Modified throttle return spring mounting. Completed.
Steady bracket for ignition control shaft. In hand.
  
  


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