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 displaying M.E.P. & Torque curves from Bench and Dynamometer tests.
| Identifier | ExFiles\Box 183\M22\ img075 | |
| Date | 1st May 1921 guessed | |
| 100 300 90 270 80 240 BENCH TEST - CUT OUT OPEN. M.E.P. & TORQUE CURVE. BENCH TEST. CUT OUT CLOSED. M.E.P. & TORQUE CURVE. DYNAMOMETER TEST. CUT OUT OPEN. M.E.P. & TORQUE CURVE. | ||