Deflection test on a Phantom III crankshaft and the requirement for Packard-type balance weights.
| Identifier | ExFiles\Box 93\5\ scan0122 | |
| Date | 13th June 1936 | |
| To E. {Mr Elliott - Chief Engineer} X-317 Hs {Lord Ernest Hives - Chair} /Gry. {Shadwell Grylls} 20/KW.13.6.36. Packard Balance Weights for Phantom III. The deflection test we conducted on a Phantom III crankshaft showed that the restoring couple required is 60% of the centrifugal out of balance at 15% to the line of Nos. 1 & 6 crankpins in the same rotational direction as on the Bentley. We should like to have a shaft with this type of balance weight available for the Continental Phantom III. Hs {Lord Ernest Hives - Chair} /Gry. {Shadwell Grylls} | ||
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).