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 turbulent flow radiator tubes for 20 HP and 40/50 HP chassis.
| Identifier | ExFiles\Box 105\1\ scan0120 | |
| Date | 18th October 1930 | |
| RR 755 (10H) (3-7-30) BM. 6/2571. x5250. COMPLETED 11.4.31. STANDARDISATION of CHASSIS PARTS. Date: 18.10.30 X No. 7250. Drawing No. L.2997. Part List Description of Parts: TURBULENT FLOW RADIATOR TUBES. Origin: To improve 20 HP. and 40/50 HP. Radiator efficiency. Experimental Test Report: The modification consists of fitting existing 5 C.C. tubes. Road Test Report: Consists of putting four small bulges in tubes and 1 C.C. at specified intervals. 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. £ Cost of Parts in Works which will be scrapped if commenced on :- Series.......£....... Series.......£....... Series.......£....... Weight of New Part. Cost of New Part. Included under Sheet No. 7500/7250/7250. Difference per Car. Difference per Car. £ Signature from Cost Dept. that above is correct. C/RD.26.1.31. C.29.1.31. WOR.{Arthur Wormald - General Works Manager} INITIAL | DATE | REMARKS SG.{Arthur F. Sidgreaves - MD} | 30.1.31. | Agreed SG.{Arthur F. Sidgreaves - MD} R.{Sir Henry Royce} | 20.10.30 | Agreed R.{Sir Henry Royce} WOR.{Arthur Wormald - General Works Manager} | 20.10.30 | Agreed Wor.{Arthur Wormald - General Works Manager} C. | | Agreed C. RG.{Mr Rowledge} | 20.10.30 | Agreed Rg.{Mr Rowledge} DA.{Bernard Day - Chassis Design} | 21.10.30 | Agreed Da.{Bernard Day - Chassis Design} BY.{R.W. Bailey - Chief Engineer} | 20.10.30 | Agreed By.{R.W. Bailey - Chief Engineer} EP.{G. Eric Platford - Chief Quality Engineer} | 21.10.30 | Agreed EP.{G. Eric Platford - Chief Quality Engineer} E.{Mr Elliott - Chief Engineer} | 21.10.30 | Agreed E.{Mr Elliott - Chief Engineer} PN.{Mr Northey} | | ************ 4.11.30 Agreed PN.{Mr Northey} HS.{Lord Ernest Hives - Chair} | | Agreed [Large green stamp over document: PHANTOM II 20/25 H.P. CHASSIS] | ||