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).
Instructions detailing the construction and materials of primary and secondary electrical windings.
| Identifier | WestWitteringFiles\S\June1928-August1928\ Scan125 | |
| Date | 8th December 1924 | |
| RR 238 (150 BKS.) (DB{Donald Bastow - Suspensions} 461-8-12-24) MP 306975 ROLLS-ROYCE, LTD. INSTRUCTIONS. (5) To ..................................................... 19.... Order No. (WD{Mr Wood/Mr Whitehead}5 contd) Customer's No. ......................... possibility of corrosive action caused by coronal discharges due to the windings passing in close proximity to the pole shoes; this alloy being less susceptible to corrosion than copper. The secondary winding was very closely wound with 44 SWG enamelled copper wire (with the exception above) and neatly papered, the tapering being more rapid towards the last layers. The primary winding, which occupied more than 60% of the total winding space, consisted of six layers of 21 SWG enamelled copper wire each layer insulated with a layer Signed (contd) This Sheet must be filed on completion of the work. | ||