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).
Specifications for vehicle springing, including spring loads, damper loads, car weight, and buffer clearances.
| Identifier | ExFiles\Box 17\1\ Scan018 | |
| Date | 11th March 1931 guessed | |
| 22-EX. Springing. Front Springs. N.S. O.S. Loaded lbs. 1106. 1106. Loaded camber. Flat. Flat. Initial camber. 4.59" 4.5" Rear Springs. Loaded lbs. 1380 1375. Loaded camber. Flat. Flat. Initial camber. 10.250" 10.250" Damper Loads. Front. 110/110 lbs. - H.P. valves drilled two holes .038" dia. Rear. 115/90 lbs. - H.P. valve drilled two holes .038" dia. Car Weight. (Unladen) One spare wheel at rear. Front. 15 cwt 3 qrs. 7 lbs. Rear. 20 cwt 0 qrs. 14 lbs. Total. 36 cwt 0 qrs 0 lbs. Buffer Clearances. N.S. O.S. No Passengers. Front. 2.218" 2.375" Rear. 4.937" 4.81" 4 Passengers. Front. 1.937" 2.125" Rear. 3.781" 3.625" | ||