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).
Requesting the production of twelve balance weights for a 25 HP crankshaft.
| Identifier | ExFiles\Box 103\3\ scan0066 | |
| Date | 29th May 1931 | |
| X 5010. To RHC.{R. H. Coverley - Production Engineer} From Hs{Lord Ernest Hives - Chair}/Gry.{Shadwell Grylls} Hs{Lord Ernest Hives - Chair}/Gry.{Shadwell Grylls}5/MJ.29.5.31. BALANCE WEIGHTS. Will you please make a set of twelve balance weights to Hs.{Lord Ernest Hives - Chair}359 for fitting to the big pin 25 HP. crankshaft. These weights balance both shaft and big end, and will be fitted to C.7 unit whose crankshaft you are machining to Sch.1402 when fitting the cast iron pistons. Hs{Lord Ernest Hives - Chair}/Gry.{Shadwell Grylls} | ||