The B.80 and C.I. conventional S-crankshaft with finished forged webs.
| Identifier | ExFiles\Box 124\1\ scan0195 | |
| Date | 10th July 1939 | |
| Des [redacted] Rm {William Robotham - Chief Engineer} /Swiles [redacted] c. Rm. {William Robotham - Chief Engineer} 1044 BY.3/G.10.7.39. B.80 and C.I. CONVENTIONAL S - CRANKSHAFT WITH FINISHED FORGED WEBS. If the crankshaft/E.CD.1436 described in memo DA. {Bernard Day - Chassis Design} 1/G.1.7.39. is adopted, it should be noted that the crankshaft damper may require re-tuning to agree with the lower natural frequency of the new shaft. BY. {R.W. Bailey - Chief Engineer} By | ||
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).