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).
Comparison of steering effort for a 93NK chassis versus a Hispano Suiza chassis.
| Identifier | ExFiles\Box 22\1\ Scan223 | |
| Date | 16th February 1925 | |
| COMPARISON OF STEERING EFFORT ROLLS ROYCE E.A.C.T. & HISPANO SUIZA EFFORT REQUIRED AT BALL END OF STEERING LEVER TO TURN FRONT WHEELS ON STATIONARY. BALL END OF SIDE STEERING ARM MOVED THRO' 3" IN EACH CASE, FROM ITS CENTRAL POSITION WEIGHT OF FRONT OF CHASSIS:- Rolls Royce 93NK 2695LBS. Hispano Suiza 2290 LBS. DISTANCE OF BALL END OF STEERING LEVER TO C/L OF PIVOT PIN. Rolls Royce 93NK 8.000" Hispano Suiza 9.000" Top Graph: Y-Axis: EFFORT REQUIRED AT END OF STEERING LEVER (LBS) X-Axis: TYRE PRESSURE (LBS/SQ") Data series (dashed line): Rolls Royce Dunlop 33x5 S.S CORD Data series (solid line): Hispano Suiza Dunlop 895 x 135 BEADED EDGE CORD Bottom Graph: Y-Axis: EFFORT REQUIRED AT C/L OF PIVOT PIN (LBS/IN) X-Axis: TYRE PRESSURE (LBS/SQ") Data series (dashed line): Rolls Royce Dunlop 33"x5 SS{S. Smith} CORD Data series (solid line): Hispano Suiza DUNLOP 895x135 BEADED EDGE CORD Stamp: ROLLS ROYCE LIMITED PRINT ROOM 16 FEB. 25 DERBY Initials: RB{R. Bowen}/JS{Mr Johnson's Secretary} | ||