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).
Graphical representation of rear axle motion experiments comparing different damping settings on various road conditions.
| Identifier | ExFiles\Box 16\5\ Scan040 | |
| Date | 29th October 1928 | |
| REAR AXLE MOTION EXPERIMENTS. PHANTOM 98 N.K. SHEET 2. Left Section: BURTON ROAD. RAILWAY LEVEL CROSSING. COMING IN TOWARDS DERBY 23 M.P.H. x 4.12 - NO DAMPERS x 5.34 - HARTFORDS ONLY SET AT 40 LBS. 35 M.P.H. x 8.88 Graph 1: NO DAMPERS Graph 2: HARTFORDS ONLY SET AT 40 LBS. Right Section: BURTON RD. HUMP-BACK BRIDGE. M.P.H. GOING OUT FROM DERBY ALL x 11.6 35 Graph 1: AXLE HEAVILY DAMPED. Graph 2: NO SHOCK ABSORBERS. 40 Graph 3: HEAVY DAMPING. COMING IN TOWARDS DERBY 35 Graph 4: HEAVY DAMPING. Graph 5: NO SHOCK ABSORBERS. Stamp: R.R.D 25 NOV 28 DERBY Handwritten Note: TSN. 29.10.28. | ||