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 front and rear spring poundages against the maximum total weight of the car for the New Phantom model.
| Identifier | ExFiles\Box 178\1\ img205 | |
| Date | 6th October 1937 guessed | |
| POUNDAGE OF NEARSIDE FRONT SPRING 1350 1325 1300 1275 1250 1225 1200 1175 1150 1125 1100 1075 FRONT SPRING REAR SPRING 5500 5600 5700 5800 5900 6000 6100 6200 6300 6400 6500 6600 MAXIMUM TOTAL WEIGHT OF CAR COMPLETE WITH PASSENGERS -GRAPH OF SPRING POUNDAGES (NEW PHANTOMCodename for PHANTOM I C... | ||