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 test results for a B.B.V. Bentley III at Brooklands and on a dynamometer.
| Identifier | ExFiles\Box 97\4\ scan0048 | |
| Date | 14th October 1938 | |
| 400b. also. 1320 To Rm.{William Robotham - Chief Engineer} COPY FOR FILES. TYPED 14.10.38. 8.B.V. Bentley III. Performance test at Brooklands and on dynamometer 28/30.9.38. 1. Dyno road wheel HP. r.p.m. 2,000 2,500 3,000 3,500 3,750. Corrected B.H.P. 65.6 79.1 88.9 91.6 90.4 .......... 2. Road wheel H.P. required for set speedo on throttle. M.P.H. 51 72 80 89 H.P. required. 16.7 45.4 63.7 91.0. .......... 3. Lap Speed 89.0 m.p.h. (Overdrive) 4. Best Half Mile 93.0 m.p.h. (Overdrive) 5. Quarter mile. Standing short. Through gears. 20.9 secs. 6. Half mile standing start through gears. 32.8 secs. 8. Acceleration times Direct gear. 10.20 10.30 10.40 10.50 10.60 10.70 M.P.H. 4.8 8.6 12.3 16.2 21.4 27.8 secs. Rm{William Robotham - Chief Engineer}/IMW.{Ivan M. Waller - Head of Chateauroux} | ||