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).
Graph plotting the results of steering joggle tests on bumper drums.
| Identifier | ExFiles\Box 95\1\ scan0353 | |
| Date | 16th July 1936 guessed | |
| CURVE N°1 STEERING JOGGLE TESTS ON BUMPER DRUMS. CHASSIS 36 Ex STANDARD R.R. MARLES STEERING. TYRE PRESSURE 35 LBS/□" STANDARD TYRES. FREQUENCY OF MAX. JOGGLE = 9.25 CYCLES/SEC = 555/MIN. FRONT DAMPERS STANDARD. ZERO GOVERNOR PRESSURE. NOTE AMPLITUDE = HALF RANGE OF OSCILLATION. AXIS LABELS: X-Axis: STEERING SYSTEM STIFFNESS. LBS. INS./DEGREE. Left Y-Axis: AMPLITUDE OF JOGGLE. DEGREES AT STEERING WHEEL Inner Left Y-Axis: AMPLITUDE OF BOUNCE Right Y-Axis: AMPLITUDE OF ROAD WHEEL FLAP. INCHES AT FRONT END OF S.S. TUBE. PLOT LABELS: ROAD WHEEL BOUNCE. WHEEL BOUNCE LA{L. A. Archer} SALLE GEAR. JOGGLE WHEEL FLAP LA{L. A. Archer} SALLE GEAR. ROAD WHEEL FLAP. JOGGLE WITH LA{L. A. Archer} SALLE GEAR. | ||