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).
Machining of a 20-GIV crankshaft, slipper wheel, and balance weights.
| Identifier | ExFiles\Box 103\3\ scan0125 | |
| Date | 29th October 1931 | |
| H.{Arthur M. Hanbury - Head Complaints} Smith from Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} XS010 Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer}6/AD29.10.31. 20-GIV CRANKSHAFT. It will now be in order to go ahead with machining the next crankshaft for the low inertia slipper wheel and also prepare a wheelcase for this. With regard to the balance weights, these can be produced full size and on completion of our test on 18)GIV we shall be able to say whether it will be necessary to machine anything more off them. Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} | ||