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).
Performance graph for an 'Overdrive Snipe' with a 4.54 axle, showing curves for Top Gear, Overdrive, and B.HP required.
| Identifier | ExFiles\Box 136\2\ scan0103 | |
| Date | 10th June 1939 guessed | |
| OVERDRIVE SNIPE 4.54 AXLE TOP GEAR OVERDRIVE B.H.P. REQ'D.{John DeLooze - Company Secretary} X-AXIS LABELS: R.P.M. TOP O/DRIVE X-AXIS VALUES (MPH): 10, 20, 30, 40, 50, 60, 70, 80, 90 X-AXIS VALUES (R.P.M. TOP): 1000, 1500, 2000, 2500, 3000, 3500, 4000 X-AXIS VALUES (O/DRIVE): 1000, 1500, 2000, 2500, 3000 Y-AXIS VALUES: 0, 10, 20, 30, 40, 50 HANDWRITTEN ON LEFT: H.C. S/N/3 | ||