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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).
Design position report detailing modifications and progress for the Spectre Chassis.

Identifier  ExFiles\Box 30\3\  Scan187
Date  3rd June 1935 guessed
  
ITEM. (3) DESIGN POSITION.

SPECTRECodename for Phantom III CHASSIS - CONTINUED.

Modified controls outside Vee to suit revised carburetters. Completed.
Provision for supporting rear of engine when clutch is dismantled. In hand.
Spring drive and larger slipper flywheel - permanent scheme. Completed.
Modifications to crankcase to suit larger slipper flywheel. In hand.
Modified front engine mounting - to suit 1 1/4 times engine speed dynamo. In hand.
Variable rating front suspension to suit unit construction shock dampers. Put aside.
Incorporation of hydraulic jack in front suspension. In hand.
Modified appearance of steering column controls. In hand.
Radiator of approved appearance - incorporating radiator shutters, etc. In hand.
Modified crankshaft balance weights. In hand.
I.F.W.S.Auto lock shock damper. In hand.
Final design of front stabiliser including front crossmember. In hand.
Investigation into adaptation of Borg and Beck clutch. Completed.
Modification to gear change bracket to suit horizontal hand brake lever. Completed.
and
Details of body mounting revised frame, 1st 20 chassis. Completed.
Bumper and bracket - 3rd car. Completed.
Front wings and apron. 4th car. In hand.
  
  


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