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 results table for various Independent Front Wheel Suspension (I.F.W.S.) steering configurations.
| Identifier | ExFiles\Box 95\1\ scan0156 | |
| Date | 10th December 1934 guessed | |
| I.F.W.S. STEERING TESTS. TABLE COLUMNS: CHASSIS. TYPE OF SUSPENSION. STEERING. GEOMETRY STEERING. BOX. OTHER PARTICULARS. RESULT OF TEST. RIGHT SIDE BAR: SHOCK DAMPER IN MIN: POSITION. TABLE CONTENT: Row 1: CHASSIS: 27 Ex. TYPE OF SUSPENSION: PARALLEL MOTION GEOMETRY: ORIGINAL LAYOUT BAD GEOMETRY BOX: R.R. RESULT OF TEST: JOGGLES AS ON STD: 40/50. OVERSTEERS NOTICEABLY. Row 2: CHASSIS: " TYPE OF SUSPENSION: " GEOMETRY: CORRECT GEOMETRY WITH 3 PIECE G.S.T. BOX: " OTHER PARTICULARS: SOLID S.S.T. RESULT OF TEST: BAD JOGGLES AND H.S. WOBBLE 75-80 M.P.H. SNATCHOMETER 25.6 FOR 12 MILES. Row 3: CHASSIS: " TYPE OF SUSPENSION: " GEOMETRY: " BOX: " OTHER PARTICULARS: DUMBELL FITTED. RESULT OF TEST: OCCASIONAL SCHOCKS BUT ONLY WHEN JELLYING. SNATCHOMETER 17.3. Row 4: CHASSIS: " TYPE OF SUSPENSION: " GEOMETRY: " BOX: " OTHER PARTICULARS: RUBBER LOADED S.S.T. T.200 MOVEMENT. RESULT OF TEST: ENTIRELY FREE FROM SHOCKS EXCEPT WHEN CORNERING. SNATCHOMETER 9.1. Row 5: CHASSIS: 30 Ex. TYPE OF SUSPENSION: CADILLAC LINKAGE. GEOMETRY: CORRECT. BOX: R.R. OTHER PARTICULARS: ANY G.S.T. LOAD. RESULT OF TEST: CONTINUOUS SHOCKS OF SMALL AMPLITUDE. Row 6: CHASSIS: " TYPE OF SUSPENSION: " GEOMETRY: " BOX: LA{L. A. Archer} SALLE OTHER PARTICULARS: 30 LBS: G.S.T. ENGINE MOUNT SOLID. RESULT OF TEST: STARTED VERY FREE FROM JOGGLES BUT BECAME STEADILY WORSE; NEVER AS BAD AS ABOVE. SLIGHTLY WORSE THAN ABOVE. Row 7: CHASSIS: " TYPE OF SUSPENSION: SHORT BOTTOM LINKS NEARLY // MOTION GEOMETRY: ORIGINAL AND .: QUARRELING. BOX: " RESULT OF TEST: VERY FREE FROM JOGGLES ABOVE 40 M.P.H. SNATCHOMETER 6.6. Row 8: CHASSIS: " TYPE OF SUSPENSION: " GEOMETRY: CORRECTED TO N: SCH: 4237. BOX: R.R. OTHER PARTICULARS: 30LBS: G.S.T. RUBBER ENGINE MOUNTING. RESULT OF TEST: JOGGLES WORSE THAN ABOVE; NO LONGER ENTIRELY ELIMINATED BY MAX: DAMPING. SNATCHOMETER 7.0. FOOTER: SHOCKERS MIN: SNATCHOMETER 28.6. " MAX: " 24.8. BOTTOM LEFT CORNER: 43.T.A PROD: 40/50. | ||