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).
Design drawing of three different blade profiles with their corresponding airfoil cross-sections.
| Identifier | ExFiles\Box 135\1\ scan0026 | |
| Date | 23th March 1932 guessed | |
| Illegible text inside the cross-section diagrams. | ||