Hand-drawn graph showing Horsepower and Air Volume characteristics for Fixed Blades.
| Identifier | ExFiles\Box 119\3\ scan0189 | |
| Date | 30th November 1931 guessed | |
| Fixed BLADES H.P AIR VOL 1000 2000 3000 4000 | ||
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).