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).
Modifications to the Sports Phantom slipper flywheel, including reduced diameter and changes to the driving springs.
| Identifier | ExFiles\Box 25\3\ Scan272 | |
| Date | 10th October 1927 | |
| BY.{R.W. Bailey - Chief Engineer} from E.{Mr Elliott - Chief Engineer} c. to BJ. Hs.{Lord Ernest Hives - Chair} X634 E1/M10.10.27. SPORTS PHANTOM - SLIPPER FLYWHEEL. X. 8300 X. 634 We send herewith drg. Lec.2472 shewing the modification to the above reducing its diameter. We have added as much metal as possible in width, but the flywheel will be still less in value than what we have been using. This however we think will be quite in order owing to the increased rate of vibration of the crankshaft system which should be obtained on this engine. The drg. also shews two driving springs for the flywheel of different poundages to the std.one at present in use. The last named has very high stresses and we do not think it will be necessary to employ such a spring on this engine. The driving plate in the flywheel is shewn fixed to the rear portion by means of screws; this enables the assembly on the engine to be made conveniently. E.{Mr Elliott - Chief Engineer} | ||