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 of riding test results at various speeds on concrete, comparing different vehicle cushion and floor setups.
| Identifier | ExFiles\Box 43\2\ Scan083 | |
| Date | 22th September 1923 | |
| RIDING TEST RESULTS WITH MACK ENGINEERS SEP 21 & 22 / '23 SHEET R.{Sir Henry Royce} RESULTS AT VARIOUS SPEEDS ON CONCRETE NEWTON ACCELEROMETER [FOR CUSHION TESTS OPERATOR HELD INSTRUMENT IN LAP] Y-AXIS: NEWTOMETER UNITS NENTS PER MILE X-AXIS: MILES PER HOUR. LEGEND 1: No 1 CUSHION & No 2 FLOOR: 102 E.X. 6 3/4" TIRES 5 PASSRS F.LENTJES/LOVEJOYS. (The word 'WITHOUT' is written and crossed out before LOVEJOYS). CLOTH CUSHIONS NOTE: CUSHION RIDES WORSE THAN FLOOR LEGEND 2: No 3 CUSHION & No 4 FLOOR: A.L. BUS WITHOUT LOVEJOYS. 5 PASSRS & BALLAST. GRAPH LABELS: 1: R.R. CUSHION 2: R.R. FLOOR 3: BUS CUSHION 4: BUS FLOOR BOTTOM RIGHT CORNER: DEC 14 / '23 | ||