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).
Springing chart for 40/50 HP cars prior to F.W.B., relating rear spring poundage to total vehicle weight.
| Identifier | ExFiles\Box 178\1\ img203 | |
| Date | 28th August 1926 guessed | |
| POUNDAGE OF SPRING NEAR REAR. MAXIMUM TOTAL WEIGHT OF CAR COMPLETE WITH PASSENGERS & LUGGAGE SPRINGING CHART FOR ALL 40/50 H.P. CARS, PRIOR TO F.W.B. Chart line labels: 539 TO 1699 1700 TO 2099 2100 TO 2699 A TO H 'J' ONWARDS (POST Vertical Axis (Poundage): 1600, 1700, 1800, 1900, 2000, 2100, 2200, 2300, 2400, 2500 Horizontal Axis (Weight): 4400, 4600, 4800, 5000, 5200, 5400, 5600, 5800, 6000, 6200, 6400 | ||