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).
Estimate of the extra weight and cost for a four-speed Goshawk gearbox compared to a three-speed version.
| Identifier | ExFiles\Box 75\1\ scan0289 | |
| Date | 22th January 1924 | |
| To B. from BJ. E.A.C. X 4247 SECRET. Copies to Hg. Hs.{Lord Ernest Hives - Chair} WORK'S PROGRESS AT W.W. BJ16/H22.1.24. With reference to E1/M16.1.24, page 2, re side lever Goshawk box, before putting in any considerable time and work on the design of a four-speed box for the Goshawk, would it be possible to estimate: 1. What is likely to be the extra weight as compared with the three-speed box? 2. What is likely to be the extra cost as compared with the three-speed box? B.J. | ||