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).
Confirming an instruction to alter the length of the Goshawk ignition ballast resistance wire from 32' to 25'.
| Identifier | ExFiles\Box 54\5\ Scan208 | |
| Date | 5th October 1922 | |
| X3485 EFC {E. Fowler Clarke - Electrical Engineer} 3/T5.10.22. To By. {R.W. Bailey - Chief Engineer} from EFC. {E. Fowler Clarke - Electrical Engineer} c. to By {R.W. Bailey - Chief Engineer} /Ds. RE GOSHAWK IGNITION BALLAST RESISTANCE X.3485 This will confirm our conversation that you will kindly issue an instruction altering the length of Goshawk ballast resistance wire from 32" as at present to 25", to make this in accordance with quantities originally arranged. This becomes more necessary as we are now proposing to increase the insulation of the secondevy winding and thus somewhat reduce the secondary turns. EFC. {E. Fowler Clarke - Electrical Engineer} | ||