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).
Analysis of steering column movement under various support and isolation conditions.
| Identifier | WestWitteringFiles\S\March1928-May1928\ Scan013 | |
| Date | 8th March 1928 guessed | |
| CONDITION OF CAR (A) AS IT LEFT DERBY SUPPORTS 1 & 6 (B) AS A.{Mr Adams} DUST COVER 3 MADE INTO RIGID CLAMP (C) AS B. TWO LIGHT STAYS LIKE 4 ADDED (D) AS C. COLUMN STAY MOVED FROM 1 TO 2 (E) AS A WITH TUBULAR SUPPORT 5 ADDED STAY (F) AS A WITH SEMI ISOLATION (G) AS D WITH SEMI ISOLATION (H) AS E WITH SEMI ISOLATION AND COLUMN SUPPORT 2 COLUMN MOVEMENT (A) 100% MOVEMENT (B) 90% MOVEMENT (C) 80% MOVEMENT (D) 75% MOVEMENT (E) 10% MOVEMENT (F) 10% MOVEMENT (G) 5% MOVEMENT (H) 100% CURE OF TROUBLE HEAVY TUBULAR STAY EFFECTIVE COLUMN STEADY NO DASH FLEXIBILITY BETWEEN C AND A L SECTION SHEET METAL SUPPORT NOT VERY EFFECTIVE. TOO MUCH WHIP BETWEEN A AND B COLUMN MOVING .300 UP AND .500 DOWN AT THIS POINT WITHOUT EXTRA DASH STAYS OR SEMI-ISOLATION DUST COVER AT PRESENT STANDARD DASH SUPPORTS CRACKING ANGLE OF RAKE 4.5° GREATER THAN STANDARD D TYPE STEERING. 15 E.X. STEERING COLUMN MOVEMENT | ||