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).
Two arrangement options for the Goshawk three-speed gearbox with a central change and servo.
| Identifier | ExFiles\Box 6\4\ 04-page024 | |
| Date | 10th January 1924 | |
| To AJS. } FROM R.{Sir Henry Royce} To E.{Mr Elliott - Chief Engineer} } c. to CJ. BJ. c. to DA.{Bernard Day - Chassis Design} BY.{R.W. Bailey - Chief Engineer} c. to HS.{Lord Ernest Hives - Chair} 15310 R4/100.1.24. GOSHAWK THREE SPEED GEARBOX. X.5310 CENTRAL CHANGE WITH SERVO. X.5770 X.5370 Re. Mr. Stent's memo. I had looked at the present box on the car here, and came to the same conclusion - i.e. that there are two ways of arrang- ing this, the more hopeful being - (1) the servo on driver's side, and hand brake shaft just behind centre of change speed lever tower, passing to the left side of box. (2) The alternative seems to be to put the servo on the left side as in the four speed box, and leave the hand brake such as on 7-Goshawk-2. (1) seems the easier, quicker, and better but if not perfect try (2). R.{Sir Henry Royce} | ||