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 detailing voltage settings for a C.A.V. D.B. Goshawk Dynamo at various speeds.
| Identifier | ExFiles\Box 51\5\ Scan180 | |
| Date | 1st November 1921 | |
| RR 300 (120B) (SF 349 24-1-19) MP 200552 X:4342V. 95288 ROLLS-ROYCE LIMITED. INSTRUCTIONS. To: S 7.C Order No. Customer's No.: 7D. 160. Re: X 4342 V. {VIENNA} 1-11-21 C.A.V. D.B Dynamo (Goshawk) G.C. Volts Adj: 82°C. Speed | Volts. 500 | 10.0 525 | 11.0 545 | 12.0 575 | 13.0 595 | 14.0 620 | 15.0 645 | 16.0 665 | 17.0. Signed This Sheet must be filed on completion of the work. | ||