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).
Graphs of rear axle motion experiments on a Phantom 98 N.K. over various road surfaces and damping settings.
| Identifier | ExFiles\Box 66\4\ scan0376 | |
| Date | 29th October 1928 | |
| SHEET 2. REAR AXLE MOTION EXPERIMENTS. PHANTOM 98 N.K. LEFT SECTION: BURTON ROAD. RAILWAY LEVEL CROSSING. COMING IN TOWARDS DERBY. 23 M.P.H. x 4.12 Data points: 1.45, 2.00, 3.00, 1.05, 2.20, 3.40, 2.50, 2.07 Label: NO DAMPERS 23 M.P.H. x 5.34 Data points: 1.50, 1.18, 2.00, 2.7M, 1.00, 2.12, 1.75, 1.60, 3.00, 1.55, 1.25, 1.45 Label: HARTFORDS ONLY SET AT 40 LBS. 35 M.P.H. x 8.88 Label: NO DAMPERS Data points: 2.15, 1.85, 2.40, 2.25, 5.40, 2.85, 3.45, 2.40 Label: HARTFORDS ONLY SET AT 40 LBS. RIGHT SECTION: BURTON RD. HUMP-BACK BRIDGE. GOING OUT FROM DERBY. ALL x 11.6 35 M.P.H. Data points: .95, .95 Label: AXLE HEAVILY DAMPED. Data points: 2.40, 3.78, 4.30, 2.73, 5.06, 1.65, .90, .53 Label: NO SHOCK ABSORBERS. 40 M.P.H. Data points: 5.10", 2.30, 2.30, .30, 1.74" Label: HEAVY DAMPING. COMING IN TOWARDS DERBY. 35 M.P.H. Data points: 1.67°, 1.4, 4.76' Label: HEAVY DAMPING. Data points: 2.55, 4.55, 3.15, 3.31, 1.67 Label: NO SHOCK ABSORBERS. BOTTOM RIGHT CORNER: Stamp: 25 NOV 31 Reference & Date: T.S.N 29.10.28. | ||