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 plotting load versus deflection for spring F54807 under high and low pressure conditions.
| Identifier | ExFiles\Box 12\1\ 01-page106 | |
| Date | 17th November 1928 guessed | |
| N. SCH 2635 DEFLECTION OR SET UP. INS LOAD LBS AT BALL END HIGH PRESSURE LOW PRESSURE SPRING F54807 RATING 80 LBS / 1' | ||