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).
Instruction sheet with test results for a Lucas E575 dynamo under hot conditions.
| Identifier | ExFiles\Box 36\4\ scan 056 | |
| Date | 29th May 1920 | |
| RR 300 / 120B) (SF 349 24-1-19) MP 200552 I 90978 ROLLS-ROYCE LIMITED. INSTRUCTIONS. To: Mc Clark 29/5/20.19 Order No: Customer's No: F/B. 48. Re: X Lucas E575. dynamo. No R1341 With Control brush advanced .30" Hot Condition Speed | Main Amperes | Control Amperes | Volts 740 | 0 | - 8.15 | 13.35 810 | 2.30 | - 6.30 | 13.50 870 | 3.60 | - 5.00 | 13.80 960 | 5.40 | - 3.55 | 14.10 1010 | 6.35 | - 2.45 | 14.20 1120 | 8.50 | - 2.00 | 14.50 1230 | 9.85 | + 1.70 | 14.70 1280 | 10.50 | + 2.60 | 14.85 1425 | 11.80 | + 4.90 | 15.00 1570 | 12.60 | + 6.90 | 15.10 (Contd) Signed This Sheet must be filed on completion of the work. | ||