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).
Hand-drawn graph plotting performance characteristics for different drive ratios.
| Identifier | ExFiles\Box 160\4\ scan0119 | |
| Date | 1st August 1939 guessed | |
| PAULIN FILE 1379. PAULIN - B 27 LE. 6½ x 19 OVER DRIVE 6½ x 16 OVER DRIVE 6½ x 19 DIRECT Y-AXIS (TOP TO BOTTOM): 120, 110, 100, 90, 80, 70, 60, 50 X-AXIS (LEFT TO RIGHT): 1000, 2000, 3000, 4000, 5000 | ||