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 wider gap radiator tubes to reduce blockage in service.
| Identifier | ExFiles\Box 15\1\ Scan153 | |
| Date | 16th August 1929 | |
| STANDARDISATION of CHASSIS PARTS. Comp. 31.8.29 Date 16. 8. 29. Description of Parts. Wider Gap Radiator Tubes. Origin. To reduce the possibility of radiators becoming blocked in service. F.2.B. series onwards. S.S. cars. Experimental Test Report. These tubes are 5 1/2 /7m.m. as against the standard 6/7 m.m. tubes. They increase the water passage size 50%. Road Test Report. We have tested these tubes on the S.S. and can detect no loss in cooling efficiency. A similar test will be made on the Phantom before radiators are issued. Weight of Old Part. Weight of New Part. Difference per Car. Cost of Old Part. Cost of New Part. Difference per Car. £ Negligible. Nov. Signature from Cost Dept. that above is correct. GRHives X No. 7250 Drawing No. Part List 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.........£....... TABLE OF APPROVALS: INITIAL | DATE | REMARKS Sg.{Arthur F. Sidgreaves - MD} | 21.8.29 | Agreed Sg.{Arthur F. Sidgreaves - MD} R.{Sir Henry Royce} | 21.8.29 | Agreed FHR. WOR.{Arthur Wormald - General Works Manager} | 19.8.29 | Agreed. Very urgent. Wor.{Arthur Wormald - General Works Manager} RG.{Mr Rowledge} | 20.8.29 | Agreed Rg.{Mr Rowledge} DA.{Bernard Day - Chassis Design} | 19.8.29 | Agreed Da.{Bernard Day - Chassis Design} BY.{R.W. Bailey - Chief Engineer} | 19.8.29 | Agreed By.{R.W. Bailey - Chief Engineer} EP.{G. Eric Platford - Chief Quality Engineer} | 17.8.29 | Agreed EP.{G. Eric Platford - Chief Quality Engineer} E.{Mr Elliott - Chief Engineer} | 21.8.29 | Agreed AE. PN.{Mr Northey} | 19.8.29 | Agreed PN.{Mr Northey} CWB. | 19.8.29 | Agreed C. Hs.{Lord Ernest Hives - Chair} | 16.8.29 | Agreed Hs.{Lord Ernest Hives - Chair} SY/MTH | ||