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).
Graph plotting the power necessary to rotate a Lorraine-Dietrich engine against its RPM.
| Identifier | ExFiles\Box 22\4\ Scan109 | |
| Date | 29th March 1927 | |
| 12 LORRAINE-DIETRICH ENGINE. POWER NECESSARY TO ROTATE ENGINE. HORSE POWER 0, 5, 10, 15, 20, 25 R.P.M. OF ENGINE. 500, 1000, 1500, 2000, 2500, 3000 LORRAINE 20 HP R.R. LORRAINE 20 HP R.R. REQUIRED POWER PER LITRE. | ||