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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).
Comparative blueprint diagram illustrating different axle and pivot arrangements and their effect on steering heaviness.

Identifier  ExFiles\Box 9\7\  07-page075
Date  16th August 1937 guessed
  
E.A.C. V SERIES
SILVER GHOST T SERIES
EXPT. AXLE WITH WIRE WHEELS. V SERIES PIVOTS.
NEW AXLE NEW PIVOTS C.2 SERIES
EXPT AXLE WITH DISC WHEELS V SERIES PIVOTS.
CENTRE POINT
VERT
VERT


2.5°
.616
.554
3.5"
1.0"
AXLES IN ORDER OF HEAVINESS OF THE STEERING
HEAVIEST ON THE LEFT.
(1 & 2) THESE ARE VERY MUCH HEAVIER THAN THE OTHER THREE.
(3) PRESUMABLY THIS ARRANGEMENT SUFFERS SOMEWHAT FROM "CROSSWINDING" OF THE PIVOT DUE TO LARGE AMOUNT OF OFF-CENTRE.
(4 & 5) THERE IS VERY LITTLE TO CHOSE BETWEEN THESE TWO AXLES FOR LIGHTNESS POSSIBLY THE CENTRE POINT STEERING MAKES (5) THE VERTICAL PIVOT AXLE FEEL A LITTLE HEAVIER THAN IT OTHERWISE WOULD.
  
  


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