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).
Blueprint detailing the modification of an existing flywheel S6671.
| Identifier | ExFiles\Box 85\2\ scan0085 | |
| Date | 21th April 1934 | |
| [ "GRIMES INSTRUCTION 1 to 37", "Ex 14076", ".075 R", "-lo", "1.25 R", "5/8", "3.25 R", "4.675 DIA", "7.800 DIA INT.", "MODIFY EXISTING FLYWHEEL @ S6671", "MODIFn TO S6671 FLYWHEEL", "ROLLS-ROYCE, LTD.", "I. OOM", "APR 21 1934", "DERBY." ], | ||