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).
Diagram and measurements of Spectre (3) car rear springs after a 20,000-mile road test in France.
| Identifier | ExFiles\Box 91\4\ scan0293 | |
| Date | 7th October 1926 | |
| SPECTRECodename for Phantom III (3) CAR - AFTER 20,000 MILES ROAD TEST IN FRANCE REAR SPRINGS (BUILT TO DRG. F.86931) FREE CAMBER OF MAIN LEAF WITH LEAVES FULLY ASSEMBLED FREE CAMBER OF MAIN LEAF TO DRG. = 6.500" (COMPLETELY ASSEMBLED) ACTUAL CAMBER WITH SPRING COMPLETELY ASSEMBLED OFFSIDE = 7.080" NEAR SIDE = 7.030" DIMENSION 'A' DIMENSION 'A' FREE CAMBER OF MAIN LEAF (DETACHED FROM REMAINDER OF LEAVES) DRG. = 6.500" ACTUAL DIMENSION 'A' OFF-SIDE = 5.150" NEAR-SIDE = 4.762" MISALIGNMENT OF BORES. CHECKED HERE NEAR SIDE = '.030' - OUT OF ALIGNMENT OFFSIDE = '.010' - OUT OF ALIGNMENT | ||