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).
Requesting a design for a sample blade for a variable pitch fan to investigate manufacturing possibilities.
| Identifier | ExFiles\Box 135\4\ scan0038 | |
| Date | 22th August 1939 | |
| 1135 TO By/Ald.{F. Allwood - Experimental Design} Rm{William Robotham - Chief Engineer}/Ed.{J. L. Edwards}1/JH.22.8.39. Variable Pitch Fan. Will you please scheme out a sample blade for a variable pitch fan as discussed with Rm{William Robotham - Chief Engineer}/Ed.{J. L. Edwards} It is intended to investigate the manufacturing possibilities of this blade together with weight and cost, before proceeding with a complete fan. Rm{William Robotham - Chief Engineer}/Ed.{J. L. Edwards} | ||