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).
Road wheel dynamometer power curve for a Bentley V-7BV in overdrive.
| Identifier | ExFiles\Box 97\5\ scan0346 | |
| Date | 2nd May 1939 | |
| BENTLEY V - 7BV ROAD WHEEL DYNO POWER CURVE. OVERDRIVE. B.H.P. ENGINE R.P.M. M.P.H. WITH RESPECT TO INDIA TYRES USED ON DYNO - ROLLING CIRCUM. 89" G.{Mr Griffiths - Chief Accountant / Mr Gnapp} 46 LBS/IN² B HUB H.P. (NEGLECTING REAR AXLE LOSS) = CURVE A + TYRE LOSS + DYNO LOSS. A H.P. AT SURFACE OF DYNO DRUMS CORRECTED TO 40°C UNDER BONNET TEMPERATURE. | ||