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).
Data sheet detailing load and deflection measurements for a Packard spring.
| Identifier | ExFiles\Box 127\1\ scan0086 | |
| Date | 23th March 1920 | |
| HS{Lord Ernest Hives - Chair} from RHR 23.3.20. X435. PACKARD SPRING. (N.S.) No.1 - with clips. Positive camber 7.500" cwts. qrs. lbs. Deflection. 2 2 7 1" 5 0 0 2" 6 2 17 3" 8 2 15 4" 10 3 10 5" 12 3 7 6" 15 0 0 7" 18 2 15 8" 19 3 6 8.500" | ||