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).
Log sheet detailing tests and specifications for 25 HP rear springs.
| Identifier | ExFiles\Box 106\1\ scan0239 | |
| Date | 27th March 1931 | |
| X5410 25 H.P. REAR SPRINGS No, DATE FITTED, LOADED lbs, LOADED LENGTH, TYPE, MAKE, MATERIAL, LOADED CAMBER, INITIAL CAMBER AFTER TEST, NUMBER OF LEAVES, PIECE NUMBER, DRAWING NUMBER, FIRTHS SERIAL NUMBER, TOTAL TIME RUN HRS MIN, POSITION ON CHASSIS, POSITION OF BREAK, REMARKS 1, 27.3.31, 951, 56", 950 lbs, FIRTHS, S.M, .5" NEG, 6", 10, F57192, -, -, -, N.S., , NOT BUMPED 2, 27.3.31, 955, 56", 950 lbs, FIRTHS, S.M., .5" NEG, 5.970', 10, F57192, -, -, -, O.S, , -DITTO- 104 | ||