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 round base EAC type ignition coil for the 20 HP model.
| Identifier | ExFiles\Box 172\2\ img037 | |
| Date | 15th September 1925 | |
| RR 755 (10M) (SL391 2.11.23) MP 281297 ORIGINAL COMPLETED 6.10.25. STANDARDISATION of CHASSIS PARTS. Date 15.9.25. X No. 5710 Description of Parts. ROUND BASE EAC. TYPE IGNITION COIL FOR 20 HP. Origin. Unification of EAC. coils and improvement in appearance. Experimental Test Report. This is the same coil as is used on Phantom cars - it is a Stabalite case. Road Test Report. Run 50,000 miles on Phantom cars. 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 [Watermark: CHASSIS] Weight of Old Part. Cost of Old Part. £ 6. 6d. Weight of New Part. Cost of New Part. £ 8. 4d. Difference per Car. Difference per Car. £ 1. 10d. increase. Cost of Parts in Works which will be scrapped if commenced on:— Series......... £......... Series......... £......... Series......... £......... Signature of Mr. De LOOZE that above is correct. IW/RDS. 19.9.25 SIGNATURES | DATE | REMARKS MR. JOHNSON | 6.10.25 | Agreed. C.Johnson. MR. B. JOHNSON | 6.10.25 | Agreed. B.J. MR. ROYCE | Sep 21/25 | Agreed FHR MR. WORMALD | 5.10.25 | Agreed. Wor.{Arthur Wormald - General Works Manager} MR. ROWLEDGE | 22.9.25 | Agreed. Rg.{Mr Rowledge} MR. DAY | 19.9.25 | Agreed. Da.{Bernard Day - Chassis Design} MR. BAILEY | 16.9.25 | Agreed. BY.{R.W. Bailey - Chief Engineer} MR. PLATFORD | 16.9.25 | Agreed. EP.{G. Eric Platford - Chief Quality Engineer} MR. ELLIOTT | Sep 21/25 | Agreed RE MR. NORTHEY | 16.9.25 | Agreed. PN.{Mr Northey} MR. HIVES | 5.10.25 | Agreed. E.Hives. | ||