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).
Positioning of change speed levers and the stiffness of control springs for the Goshawk 11 engine arrangement.
| Identifier | ExFiles\Box 76\4\ scan0098 | |
| Date | 8th February 1921 guessed | |
| To Hs.{Lord Ernest Hives - Chair} from R.{Sir Henry Royce} c. CJ. Da.{Bernard Day - Chassis Design} X 3528 R1/G9.2.21. X.3528.-RE GOSHAWK 1. In our Goshawk 11 arrangement the change speed is much further forward. Therefore there is room to get past change speed levers. We thought this less important than convenience of reach, which was the first object in Goshawk 1 arrangement. You will have both to compare. I do not like long levers. The stiffness of the control springs should be much reduced. These were arranged at Derby, but it is always difficult to judge what strength is necessary, and it is very easy to reduce, whereas it might be difficult to increase. R.{Sir Henry Royce} | ||