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).
Modification drawing for flywheel G56671.
| Identifier | ExFiles\Box 103\1\ scan0098 | |
| Date | 21th April 1934 | |
| GRYLLS Instruction 18.4.34 FX 14076 075 R -10 .125 R .150 +5 -0 .325 R 4.675 DIA 7.800 DIA MT. MODIFY EXISTING FLYWHEEL G56671 MODIFIED TO G56671 FLYWHEEL ROYCE, LTD. D.{John DeLooze - Company Secretary} ROOM APR 21 1934 DERBY. | ||