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).
Tubes in cylinder heads, comparing monel, copper, and stainless steel, and recommending copper for future use.
| Identifier | ExFiles\Box 65\4\ scan0308 | |
| Date | 11th March 1925 | |
| R.R. 493A (50m) (D.B. 175' 25-9-24) J.H.D. EXPERIMENTAL REPORT. Expl. No. X8050 REF: Hs{Lord Ernest Hives - Chair}2/LG11.3.25. TO R.{Sir Henry Royce} FROM HS.{Lord Ernest Hives - Chair} c. to CJ. c. to RG.{Mr Rowledge} c. to DA.{Bernard Day - Chassis Design} BY.{R.W. Bailey - Chief Engineer} c. to WOR.{Arthur Wormald - General Works Manager} S E C R E T. E.{Mr Elliott - Chief Engineer} A.{Mr Adams} C. TUBES IN CYLINDER AND CYL: HEAD. The tubes in the cylinder and head which were originally instructed in monel metal, there has been considerable difficulty in getting these tubes, and the Works also have difficulty in making them tight. We have fitted several engines with copper tubes in place of monel. 98-NK car which is running in France has copper tubes. The engine on the test bed has run 420 hrs. fitted with copper tubes. So far we have had no trouble at all with copper tubes. They are easy to fit and can be made tight without difficulty. We have also tried stainless steel tubes. These were reported to be more difficult than the monel to make tight. The first 100 production engines will have monel metal tubes. We recommend that in future we should fit copper tubes. Hs.{Lord Ernest Hives - Chair} | ||