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 showing performance data for a Smith Dynamo under cold conditions.
| Identifier | ExFiles\Box 3\5\ 05-page254 | |
| Date | 31th May 1920 | |
| R.R. 708 (120M) (SP{Mr Spinney} Jan 24-1-19) HSP 200152 90981 ROLLS-ROYCE LIMITED. INSTRUCTIONS. To: Mr Clark. Order No: Re: X Customer's No.: H351. 31/5/20 Smith Dynamo. 2D(I) Cold Condition 15°C Speed | Amperes | Volts. 455 | 0 | 12.20. 480 | 1.70 | 12.40. 520 | 3.70 | 12.50. 570 | 6.00 | 12.70. 610 | 7.50 | 12.95 645 | 8.45 | 13.05 710 | 10.0 | 13.45 810 | 12.10 | 13.60. 930 | 12.75 | 14.00. 1090 | 13.25 | 14.30. 1225 | 13.00 | 14.35 (Cont.) Signed: This Sheet must be filed on completion of the work. | ||