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).
Test report on Independent Front Wheel Suspension (I.F.W.S.) steering performance for various chassis configurations.
| Identifier | ExFiles\Box 17\4\ Scan101 | |
| Date | 11th December 1934 guessed | |
| I.F.W.S. STEERING TESTS. CHASSIS. | TYPE OF SUSPENSION. | STEERING GEOMETRY | STEERING BOX. | OTHER PARTICULARS. | RESULT OF TEST. 27 Ex | PARALLEL MOTION | ORIGINAL LAYOUT BAD GEOMETRY | R.R. | | JOGGLES AS ON STD: 40/50 OVERSTEERS NOTICEABLY. 27 Ex | PARALLEL MOTION | CORRECT GEOMETRY WITH 3 PIECE G.S.T. | R.R. | SOLID S.S.T. | BAD JOGGLES AND H.S. WOBBLE 75 - 80 M.P.H. SNATCHOMETER 25.6 FOR 12 MILES. 27 Ex | PARALLEL MOTION | CORRECT GEOMETRY WITH 3 PIECE G.S.T. | R.R. | DUMBELL FITTED. | OCCASIONAL SHOCKS BUT ONLY WHEN JELLYING. SNATCHOMETER 17.3. 27 Ex | PARALLEL MOTION | CORRECT GEOMETRY WITH 3 PIECE G.S.T. | R.R. | RUBBER LOADED S.S.T. ± .200 MOVEMENT | ENTIRELY FREE FROM SHOCKS EXCEPT WHEN CORNERING SNATCHOMETER 9.1. 30 Ex | CADILLAC LINKAGE. | CORRECT. | R.R | ANY C.S.T. LOAD. | CONTINUOUS SHOCKS OF SMALL AMPLITUDE 30 Ex | CADILLAC LINKAGE. | CORRECT. | LA{L. A. Archer} SALLE | 30LBS.C.S.T. ENGINE MOUNT SOLID. | STARTED VERY FREE FROM JOGGLES BUT BECAME STEADILY WORSE; NEVER AS BAD AS ABOVE. SLIGHTLY WORSE THAN ABOVE. 30 Ex | SHORT BOTTOM LINKS NEARLY // MOTION | ORIGINAL AND QUARRELING. | LA{L. A. Archer} SALLE | 30LBS.C.S.T. ENGINE MOUNT SOLID. | 30 Ex | SHORT BOTTOM LINKS NEARLY // MOTION | CORRECTED TO N: SCH: 4237. | R.R | | VERY FREE FROM JOGGLES ABOVE 40 M.P.H. SNATCHOMETER 6.6. 30 Ex | SHORT BOTTOM LINKS NEARLY // MOTION | CORRECTED TO N: SCH: 4237. | R.R. | 30LBS.C.S.T. RUBBER ENGINE MOUNTING | JOGGLES WORSE THAN ABOVE; NO LONGER ENTIRELY ELIMINATED BY MAX: DAMPING SNATCHOMETER 7.0. [Right Margin Text] SHOCK DAMPER IN MIN: POSITION. [Bottom Footer] SHOCKERS MIN: SNATCHOMETER 28.6. SHOCKERS MAX: SNATCHOMETER 24.8. | ||