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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).
Electrical experimental record sheet for a Sequence Starter Motor, models A and A2.

Identifier  ExFiles\Box 64\1\  scan0285
Date  19th April 1926
  
X8620
ELECTRICAL EXPERIMENTAL RECORD SHEETS
X.&No:- 8620
Sequence Starter Motor A.{Mr Adams} subsequently A₂

Date on. | Location. | Date off. | REMARKS. | Miles reading START. | Miles reading FINISH. | Miles covered. | Total miles.
--- | --- | --- | --- | --- | --- | --- | ---
25-10-24 | Lab | 1-11-24 | Received from Shop. Brushes N. Tests 1&2 carried out. Flat top Brushes By-pass fitted to Teazer circuit. | | | |
1-11-24 | 93NK | 17-11-24 | Taken to W.W where starter gear failed and was removed. | | | |
17-11-24 | Shop | 30-1-25 | Teazer winding rewound 7swg. | | | |
29-4-25 | Lab | 11-5-25 | Brushes checked N | | | |
9-10-25 | " | 16-10-25 | Tests 2+3 by H.E.W " 5 " S.A | | | |
31-1-26 | Shop | 29-11-26 | Sent into shop for revision. | | | |
A2
29-11-26 | Lab | | Received back with Std windings, modified Helix (20°) and Epicyclic Ratio 96:31. | | | |
1-12-26 | " | 3-12-26 | Production tested and test NO.5. carried out. | | | |
3-12-26 | 14EX | | Placed on EAC7 chassis 14EX. | 8855 | | |
25-4-27 | Shop | 12-5-27 | Motor Removed and field coils transferred to J motor (No 2 scheme). | | 9406 | 551 | 551
12-5-27 | Lab | | Remaining parts sent to lab. | | | |
21-7-27 | | | Armature with 20° Spiral fitted to G₂ motor. | | | |
9-12-27 | | | This scheme of starter motor is now obsolete. | | | |
19.4.26.
  
  


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