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 regarding an alteration to the position of the main brushes for the Goshawk Dynamo.
| Identifier | ExFiles\Box 50\5\ Scan170 | |
| Date | 2nd May 1923 | |
| X.4393 EFC. {E. Fowler Clarke - Electrical Engineer} BY {R.W. Bailey - Chief Engineer} /Ds. BY {R.W. Bailey - Chief Engineer} /C3/H. 2. 5. 23. GOSHAWKAero EngineCodename for 20HP Car / Aero Engine after KestrelAero Engine DYNAMO. ALTERATION TO POSITION OF MAIN BRUSHES. With reference to your EFC {E. Fowler Clarke - Electrical Engineer} 1/T. 30.4.23. we consider that this change should be submitted to R. {Sir Henry Royce} possibly by means of a Standardization Sheet, therefore should be glad if you would arrange for this to be issued as soon as possible. In the meantime, however, we are instructing the Works to arrange for the brushes to be retarded 7° from their present position, as requested. BY {R.W. Bailey - Chief Engineer} /C. | ||