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).
Status report on various No.1 sequence starter gear components, specifically carcases and armatures.
| Identifier | ExFiles\Box 64\3\ scan0123 | |
| Date | 24th August 1927 | |
| E.F.C. X7655 24.8.27. X.7650. NO.1 SEQUENCE STARTER GEAR. CARCASES. We have - A fitted with pole pieces - no windings. We have the three-turn per pole winding separate. This came off J motor of No.2 scheme. C fitted with two series two parallel field winding modified from the original 6-turn winding. G fitted with an original 6-turn winding at present on chassis 9-EX. N.B. The J motor of No.2 scheme is fitted with the original 6-turn winding taken from the A motor. ARMATURES AND HELIXES. We have three armatures :- One with 34/52 spiral recently removed from chassis 9-EX. One with a 20° spiral, at present on 9-EX, having been previously tested on rig. One with a 5° spiral which has been tested on the rig but not yet on a car. EFC. | ||