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).
Calculating the critical speed for an Alfa-Romeo crankshaft from a drawing provided by Thomson & Taylors.
| Identifier | ExFiles\Box 124\5\ scan0130 | |
| Date | 19th January 1934 | |
| 4482 To E.{Mr Elliott - Chief Engineer} from Hs{Lord Ernest Hives - Chair}/Gry.{Shadwell Grylls} c. to By.{R.W. Bailey - Chief Engineer} c. to Rg.{Mr Rowledge} Hs{Lord Ernest Hives - Chair}/Gry.{Shadwell Grylls}2/KW.19.1.34. Alfa-Romeo Crankshaft. We have received from Thomson & Taylors the attached drawing of the Crankshaft centre and blower drive. Assuming the inertia of the gears has no effect on the critical speed we calculate this to be approximately at 3800 r.p.m. well in the running range. Hs{Lord Ernest Hives - Chair}/H.{Arthur M. Hanbury - Head Complaints} Grylls. | ||