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 chassis parts, specifically Watford Magnetos type EW6A fitted with Tungsten contact points.
| Identifier | ExFiles\Box 172\3\ img127 | |
| Date | 12th September 1930 | |
| RR 785 (10H) (3-7-30) BM. 5/2571. ORIGINAL COMPLETED 6.10.30. STANDARDISATION of CHASSIS PARTS. Date 12.9.30. X No. 7792. Description of Parts. WATFORD MAGNETOS TYPE EW6A FITTED WITH TUNGSTEN CONTACT POINTS. Origin. Reduction in cost and increased reliability Experimental Test Report. As reported more fully in our EFC2/AD11.9.30, satisfactory results with these machines have been obtained both on the bench and on preliminary chassis tests. Road Test Report. These magnetos have run 15,000 miles on 23-EX 5,000 " on 22-EX 5,000 " on 20-EX 8,000 " on 19-EX Drawing No. Part List A Scrap and replace 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. Weight of New Part. Difference per Car. Cost of Old Part. £7. 16. 0d. Cost of New Part. £7. 12. 10d. Difference per Car. £ 3. 2d. DECREASE. Signature from Cost Dept. that above is correct G/RB.{R. Bowen} 2.10.30. Wor.{Arthur Wormald - General Works Manager} Cost of Parts in Works which will be scrapped if commenced on :- Series.........£....... Series.........£....... Series.........£....... INITIAL | DATE | REMARKS SG.{Arthur F. Sidgreaves - MD} | 3.10.30 | Agreed Sg.{Arthur F. Sidgreaves - MD} R.{Sir Henry Royce} | 16/9/30 | Agree S.M.R. but to be certain these are more lasting & reliable than present type. WOR.{Arthur Wormald - General Works Manager} | 13.9.30 | Agreed WOR.{Arthur Wormald - General Works Manager} C. | | Agreed C. RG.{Mr Rowledge} | 15.9.30 | Agreed Rg.{Mr Rowledge} DA.{Bernard Day - Chassis Design} | 15.9.30 | Agreed Da.{Bernard Day - Chassis Design} BY.{R.W. Bailey - Chief Engineer} | 15.9.30 | Agreed By.{R.W. Bailey - Chief Engineer} EP.{G. Eric Platford - Chief Quality Engineer} | 12.9.30 | Agreed EP.{G. Eric Platford - Chief Quality Engineer} E.{Mr Elliott - Chief Engineer} | 15.9.30 | Agreed AE. PN.{Mr Northey} | 15.9.30 | Agreed PN.{Mr Northey} HS.{Lord Ernest Hives - Chair} | | Agreed Hs.{Lord Ernest Hives - Chair} | ||