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).
Modifications to the Goshawk 11 control gear regarding the toggling lever.
| Identifier | WestWitteringFiles\I\May1922\ Scan36 | |
| Date | 11th May 1922 | |
| ORIGINAL. To Da.{Bernard Day - Chassis Design} from E.{Mr Elliott - Chief Engineer} c. to CJ. c. to Her. c. to Hy.{Tom Haldenby - Plant Engineer} c. to HB.{C. E. Harcombe} ✓ c. to EP.{G. Eric Platford - Chief Quality Engineer} Hs{Lord Ernest Hives - Chair} RECEIVED MAY 13 1922 E5/M11.5.22. GOSHAWK 11. CONTROL GEAR. X4239 We send you herewith drawing No. LeC 1574. This drawing shows 2 modifications to the control gear:- (1) Length of the toggling lever for the hand control decreased from .9 to .6. (11) The angular position of this lever altered until it is now absolutely toggled. The net effect of these 2 modifications is to open the throttle only 25% (angularly) with the full range of the hand control, and to provide a still more gradual opening effect at the beginning of the movement. E.{Mr Elliott - Chief Engineer} | ||