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).
Standardisation report on the use of copper tubes in place of steel for the cylinder and cylinder head.
| Identifier | ExFiles\Box 172\1\ img068 | |
| Date | 14th July 1925 | |
| RR 755 (10M) (SL391 2-11-23) MP 281297 ORIGINAL COMPLETED 22.7.25. STANDARDISATION of CHASSIS PARTS. Date 14.7.25. X No. 5050 Drawing No. Part List Description of Parts. TUBES IN CYLINDER & CYLINDER HEAD. Origin. Use of copper in place of steel. Experimental Test Report. We are using copper tubes on the 'Phantom' - they are easier to make tight and do not corrode. Road Test Report. Run 10,350 miles on 9-G-111. Run 4000 miles on 8-G-111. No troubles. A Scrap and replace at all costs, including Chassis already delivered to customers. B Scrap and replace on Chassis in works. C Scrap present stock and replace on all Chassis not yet handed to test. D Use existing stock Alteration effective on future Chassis. Weight of Old Part. Cost of Old Part. £ 5. 4d. Weight of New Part. Cost of New Part. £ 8. 11d. Difference per Car. Difference per Car. £ 3. 7d. increase. Cost of Parts in Works which will be scrapped if commenced on:- Series.......... £ .......... Series.......... £ .......... Series.......... £ .......... Signature of Mr. De LOOZE that above is correct. MY/Rns. 20.7.25. SIGNATURES | DATE | REMARKS MR. JOHNSON | 22.7.25 | Agreed. C.Johnson. MR. B. JOHNSON | 22.7.25 | Agreed. B.J. MR. ROYCE | 16/7/25 | Agreed FH Royce MR. WORMALD | 14.7.25 | Agreed. Wor.{Arthur Wormald - General Works Manager} MR. ROWLEDGE | 17.7.25 | Agreed. Rg.{Mr Rowledge} MR. DAY | 16.7.25 | Agreed. DA.{Bernard Day - Chassis Design} MR. BAILEY | 14.7.25 | Agreed. BY.{R.W. Bailey - Chief Engineer} MR. PLATFORD | 15.7.25 | Agreed. EP.{G. Eric Platford - Chief Quality Engineer} MR. ELLIOTT | 16/7/25 | Agreed A E Elliott MR. NORTHEY | 15.7.25 | Agreed. PN.{Mr Northey} MR. HIVES | 21.7.25 | Agreed. E.Hives. (Stamped faintly across the middle: CHASSIS) | ||