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).
Cross-section drawing of a flywheel modification, showing dimensions and weight saving calculations.
| Identifier | ExFiles\Box 103\1\ scan0022 | |
| Date | 7th March 1933 guessed | |
| BENSPORT FLYWHEEL MOD TO C54938 -126 DIA 13.8 STD FLYWHEEL WT. 68.75 LBS HS{Lord Ernest Hives - Chair} 932. 39.625 LBS WT SAVED 29.125 LBS HS{Lord Ernest Hives - Chair} 932 | ||