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).
The Goshawk 11 crankshaft pinion spring drive, advising that scheme LeC.1449 is superseded by scheme LeC.1458 with a slipper flywheel.
| Identifier | ExFiles\Box 74\3\ scan0237 | |
| Date | 10th October 1921 | |
| XL4221 To BY.{R.W. Bailey - Chief Engineer} from E.{Mr Elliott - Chief Engineer} c. to Hs.{Lord Ernest Hives - Chair} E1/G8.10.21. GOSHAWK 11. CRANKSHAFT PINION SPRING DRIVE. X.4222 X.4221 It should be understood that nothing more should be done with Spring Drive LeC.1449 now that we have a scheme LeC.1458 fitted with slipper flywheel. E.{Mr Elliott - Chief Engineer} | ||