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).
Standardisation sheet regarding the introduction of additional parts to strengthen the Fan Blade.
| Identifier | ExFiles\Box 75\3\ scan0108 | |
| Date | 1st January 1922 | |
| X. 3438 Extract from Rd3/139A/M9.1.22. STANDARDISATION SHEET NOS. X. 3438 & X.4387 X.3438 - This sheet covers the introduction of additional parts for the purpose of strengthening up the Fan Blade. The modification will not cause any loss due to stock being scrapped. D/Rd | ||