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).
Suggesting the use of metal-spraying on exhaust pipes to prevent corrosion and increase their lifespan, proposing a trial on a Bentley.
| Identifier | ExFiles\Box 133\4\ scan0330 | |
| Date | 18th May 1939 | |
| WYMAN. Is this likely to be a treatment we have tried? PM 1127. S/W... Rm.{William Robotham - Chief Engineer} AA{D. Abbot-Anderson}8/BK.{A. Birkett - Commercial Manager}18.5.39. When I was calling on a Bentley owner yesterday at the Airport, Portsmouth, I saw them metal-spraying engine mountings and aero engine exhaust pipes. They apparently deposit about .002 on the latter and this increases the life of the pipes considerably. It struck me, in view of a remark made to me recently by Br regarding an enquiry, I gather from you, as to the average life of silencers, etc. that possibly this metal spraying might overcome some of our difficulties. The owner in question, a Mr. King of R.K. Dundas, Ltd., The Airport, Portsmouth, told me that they had find it possible to manufacture exhaust pipes of a lighter gauge steel - so saving weight - spraying them with aluminium and getting the same life as the original heavy gauge pipe. Probably you have already gone into this very thoroughly, but I thought it might be interesting to try it on, say, the Bentley exhaust system. I would I imagine definitely eliminate rapid corrosion due to atmospheric conditions, and water thrown up by the wheels. Incidentally Mr. King said that if this method interested you in any way, he would be delighted to carry out the complete treatment on a Bentley exhaust system for us, so that we could try it. If this is of any interest to you, perhaps you would kindly drop me a note, and I will ask Mr. King to get in touch with you. AA.{D. Abbot-Anderson} -- | ||