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 6° 5° 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. | ||