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).
Correcting previously stated Goshawk chassis weights and discussing guaranteed weight.
| Identifier | WestWitteringFiles\J\November1922\ Scan97 | |
| Date | 20th November 1922 | |
| R.R. 199 (250T) (SD676 19-7-17) MP180865 To R.{Sir Henry Royce} from Hs.{Lord Ernest Hives - Chair} c. to C.J. c. to E.{Mr Elliott - Chief Engineer} c. to Ds/Ev.{Ivan Evernden - coachwork} c. to HY.{Tom Haldenby - Plant Engineer} c. to PN{Mr Northey} ORIGINAL. Hs{Lord Ernest Hives - Chair}4/LG20.11.22. GOSHAWK WEIGHTS. X4538 We regret that the Goshawk weights given in our memo. Hs{Lord Ernest Hives - Chair}2/LG22.9.22 have proved to be incorrect. We did not care to rely on our own figures because they were out-of-date. The weights we gave you were supplied to us by another Dept. The latest weight which has been accepted by all as being correct is - Front 1146 lbs. Rear 1232 " ---------- Total 2378 " ========== This is chassis complete with 4 tyres, battery, spare wheel carrier, step irons, instrument board, full of petrol, oil and water. The fact that the chassis is heavier than was anticipated when the weights given in Ds/EV{Ivan Evernden - coachwork}4/NE.10.22 were got out, should not alter the guaranteed weight. When 7-G-11 was running recently in France, the complete car with passengers and all spares weighed - 4050 lbs. When running the car in the mountains we frequently had to come down to 1st. speed and on some of the steep hair-pin bends, there was no excess reserve of power. The proposed guaranteed weight of 39 cwts. is approximately 350 lbs. heavier than the weight we were carrying on 7-G-11. Below is a comparison between the guaranteed weight of the 40/50 and the guaranteed weight of the Goshawk. contd:- | ||