Sketch of the balance weights used on the 25 HP crankshaft.
| Identifier | Morton\M13.2\ img074 | |
| Date | 23th July 1931 | |
| ORIGINAL To E. {Mr Elliott - Chief Engineer} From Hs {Lord Ernest Hives - Chair} /Gry. {Shadwell Grylls} Hs {Lord Ernest Hives - Chair} /Gry. {Shadwell Grylls} 6/MJ.23.7.31. 85010. Herewith sketch of the balance weights we used on the big pin 25 HP. crankshaft to balance both big ends and crankshaft and crankshaft details. The method of attachment is the same as in Sch.1402. Hs {Lord Ernest Hives - Chair} /H.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).