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 a radiator with .312' hexagon copper tubes for more efficient cooling.
| Identifier | ExFiles\Box 16\2\ Scan050 | |
| Date | 26th September 1931 | |
| RR 755 (10M) (8459, 24-10-30) 6/3165. X7250 COMPLETED 5.11.31 STANDARDISATION of CHASSIS PARTS. Date 26.9.31 Description of Parts. RADIATOR WITH .312" HEXAGON COPPER TUBES. Origin. To obtain more efficient cooling. Experimental Test Report. Fitted to 25-EX for tests in France. Road Test Report. Fitted to 25-EX and run 15,000 miles in France. There was a decided improvement in the reduction of temperature. Cases of boiling have occurred at slow speeds. with high air temperature. [Stamped across Experimental and Road Test Reports: PHANTOM] Weight of Old Part. Weight of New Part. Difference per Car. Cost of Old Part. £ 10-2-0 Cost of New Part. £ 6-10-11 Difference per Car. £ 3-11-1 Signature from Cost Dept. that above is correct. GJR 24/10/31 [Top Right Box] X No. X.7250 LOP. Drawing No. E.81428, E.81407 Part List E.82520 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. Cost of Parts in Works which will be scrapped if commenced on :- Series.........£......... Series.........£......... Series.........£......... [Approval Table] INITIAL | DATE | REMARKS SG.{Arthur F. Sidgreaves - MD} | 3-11-31. | Agreed SG.{Arthur F. Sidgreaves - MD} R.{Sir Henry Royce} | 3.10.31. | Agreed FHR. WOR.{Arthur Wormald - General Works Manager} | 30.9.31. | Agreed Wor.{Arthur Wormald - General Works Manager} C. | 30.9.31. | Agreed C. RG.{Mr Rowledge} | 7.10.31. | Agreed Rg.{Mr Rowledge} DA.{Bernard Day - Chassis Design} | 2.10.31. | Agreed Da.{Bernard Day - Chassis Design} BY.{R.W. Bailey - Chief Engineer} | 30.9.31. | Agreed By.{R.W. Bailey - Chief Engineer} EP.{G. Eric Platford - Chief Quality Engineer} | 5.10.31. | Agreed EP.{G. Eric Platford - Chief Quality Engineer} E.{Mr Elliott - Chief Engineer} | 5.10.31. | Agreed AE. PN.{Mr Northey} | 30.9.31. | Agreed. I am thankful for small mercies, but wish we could have gone one better, our margin remains still too small. PN.{Mr Northey} HS.{Lord Ernest Hives - Chair} | | Agreed [Stamps near signature] Round Stamp: RECEIVED 3 NOV 1931 Accounts Rectangular Stamp: Cost Dept. 24 OCT 1931 | ||