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).
Troubleshooting and improvements for Goshawk-11 cars, focusing on filter, steering, and silencer issues.
| Identifier | ExFiles\Box 46\2\ Scan139 | |
| Date | 10th April 1922 | |
| Hs.{Lord Ernest Hives - Chair} from EP.{G. Eric Platford - Chief Quality Engineer} X4086 EP{G. Eric Platford - Chief Quality Engineer}4/LG10.4.22. GOSHAWK-11 CARS. X4219 X4086 Thanks for your report of the 5th.inst.(I think) received this morning. 6-Goshawk-11 is crossing today and we have wired Hy.{Tom Haldenby - Plant Engineer} to meet it at Boulogne to take on to Le CanadelHenry Royce's French residence. I wrote you fairly fully about this matter yesterday. There are one or two further points which you should be aware of, possibly to advantage in the discussion of the standard Goshawk or investigation work. 1. The filter job complained of by Hy.{Tom Haldenby - Plant Engineer} now appears to have simmered out. It would appear that he has realised, or taken advantage of our recommendations, for the petrol system to be thoroughly cleaned out and a fresh start made. There does not therefore now appear any necessity for over-worrying ourselves about this matter. We have however, pointed out to him the possibility of the air lock in the pipe and we have also turned out 6-Goshawk-11 fitted with a pipe which has a gradual "fall" as you suggest. We have not heard definitely from Hy.{Tom Haldenby - Plant Engineer} that he is meeting 6-Goshawk-11 at Boulogne, but we have asked him to inform us when on receipt of the car and, if possible, when he will arrive at Le CanadelHenry Royce's French residence. 2. Steering. By the time 6-Goshawk-11 arrives at Le CanadelHenry Royce's French residence I have no doubt that the steering will have settled down and the fact of whether the fixing of the plain thrust bearing is an improvement or otherwise, will have been established. We are making up a tube with buffer springs at the ends the same as the 40/50 which we propose to try on 7-Goshawk-11 the steering of which, is otherwise standard. We should be glad to hear from you as to what is the latest settlement with regard to steering and whether we can apply any "improvements" to advantage on 7-Goshawk-11. 3. Silencer. On testing 6-Goshawk-11 the silencer was notice-ably bad for booming noises and on investigation we found that the silencer itself had not got the drilled end-pipes fixed in as per drawing. After these were fixed, the silencer appeared quite a good job, in fact, quite satis-factory. I did not notice this was so bad on 5-Goshawk-11 but feel that it may possibly be the same as referred to in Hy{Tom Haldenby - Plant Engineer}'s report. You might, however, be able to compare 6-Goshawk-11 with 4-Goshawk-11 in this respect. contd:- | ||