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 of 25.HP. Matrix Tubes with 8 Indentations to improve cooling effect.
| Identifier | ExFiles\Box 172\1\ img203 | |
| Date | 19th January 1931 | |
| RR 755 (10M) (3-7-30) BM. 6/2571. COMPLETED 21.11.31. ORIGINAL STANDARDISATION of CHASSIS PARTS. Date 19.1.31. Description of Parts. 25.HP. Matrix Tubes with 8 Indentations. Origin. To remove any stagnant air and improve cooling effect. Experimental Test Report. Increased efficiency of radiator. Road Test Report. Ran 10000. miles with improved result to cooling. See test reports of 10.000 miles on 18.G.IV. Drawing No. E.56327. Part List X No. 5250. 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 Chassis not yet handed to test. D Use existing stock Alteration effective on future Chassis. Cost of Parts in Works which will be scrapped if commenced on :- Series.........£....... Series.........£....... Series.........£....... Weight of Old Part. Weight of New Part. Difference per Car. Cost of Old Part. Cost of New Part. £ -- Difference per Car. £ None. Signature from Cost Dept that above is correct. C/Rh.{R. Hollingworth}11.11.31 C.12.11.31 Wor.{Arthur Wormald - General Works Manager} INITIALS | DATE | REMARKS SG.{Arthur F. Sidgreaves - MD} | 13.11.31. | Agreed Sg.{Arthur F. Sidgreaves - MD} R.{Sir Henry Royce} | 19/2/31 | Agreed R.{Sir Henry Royce} WOR.{Arthur Wormald - General Works Manager} | 20.1.31. | Agreed Wor.{Arthur Wormald - General Works Manager} C. | 20.1.31. | Agreed C. RG.{Mr Rowledge} | 20.1.31. | Agreed Rg.{Mr Rowledge} DA.{Bernard Day - Chassis Design} | 21.1.31. | Agreed Da.{Bernard Day - Chassis Design} BY.{R.W. Bailey - Chief Engineer} | 21.1.31. | Agreed BY.{R.W. Bailey - Chief Engineer} EP.{G. Eric Platford - Chief Quality Engineer} | 27.1.31. | Agreed EP.{G. Eric Platford - Chief Quality Engineer} and MX.{John H Maddocks - Chief Proving Officer} E.{Mr Elliott - Chief Engineer} | 21.1.31. | Agreed AE. PN.{Mr Northey} | 21.1.31. | Agreed PN.{Mr Northey} HS.{Lord Ernest Hives - Chair} | | Agreed Hs.{Lord Ernest Hives - Chair} [STAMP TEXT] 28/125 H.P. CHASSIS | ||