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 proposal to approve the Ferranti ammeter as an alternative British-sourced part to the existing Elliott ammeter.
| Identifier | ExFiles\Box 168\5\ img187 | |
| Date | 25th June 1930 | |
| RR 75B REVISED (10M) (DO 348 19-7-28) B.K. 5/543. STANDARDISATION OF CHASSIS PARTS COMPLETED 14.7.30. Date 25.6.30. Description of Parts. FERRANTI AMMETER. (as second string to present standard Elliott ammeter) Origin. Desirability of second British source of supply particularly one of the high all-round reputation represented by the name Ferranti. Experimental Test Report. Road Test Report. Ferranti ammeters have been on test with us since July 1928. Bench observations and tests have shewn them to contain high grade mechanism and to be uniformly accurate. Three instruments now being run on experimental cars are made to our standard finish and suited to the grouped instrument board. Run-on 12-GEV 7,500 miles. 17-GIV 5,000 miles. 14-EX 4,000 miles. Weight of New Part. Difference per Car. Negligible. Signature from Cost Dept. that above is correct. GIRL 9/7/30. X No. 3498. Drawing No. Part List A Scrap and replace on all Chassis 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 Old Part Elliott Ammeter £ 1-16-6 Cost of New Part Ferranti Ammeter £ 1-12-0 Difference per Car (Elliott & Ferranti) 4s 6d in favour of Ferranti Ammeter. The Ferranti Ammeter will not supersede the Elliott but will be an alternative source of supply. Cost of Parts in Works which will be scrapped if commenced on :- Series......E...... Series......E...... Series......E...... INITIAL DATE REMARKS SCX Sg.{Arthur F. Sidgreaves - MD} 11-7-30 agreed Sg.{Arthur F. Sidgreaves - MD} R.{Sir Henry Royce} 1.7.30 Agreed FHR. WOR.{Arthur Wormald - General Works Manager} 26.6.30 Agreed Wor.{Arthur Wormald - General Works Manager} RG.{Mr Rowledge} 26.6.30 Agreed Rg.{Mr Rowledge} DA.{Bernard Day - Chassis Design} 25.6.30 Agreed Da.{Bernard Day - Chassis Design} BY.{R.W. Bailey - Chief Engineer} 27.6.30 Agreed By.{R.W. Bailey - Chief Engineer} EP.{G. Eric Platford - Chief Quality Engineer} 26.6.30 Agreed EP.{G. Eric Platford - Chief Quality Engineer} E.{Mr Elliott - Chief Engineer} 1.7.30 Agreed AE. PN.{Mr Northey} 27.6.30 Agreed PN.{Mr Northey} CWB. Agreed C. Hs.{Lord Ernest Hives - Chair} Agreed Hs.{Lord Ernest Hives - Chair} STAMPS: P.D. CHASSIS CANCELLED, RECEIVED 11 30 J.C, D.O. | ||