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).
Secret memo discussing the suitability of the Goshawk dynamo for the EAC chassis, comparing its performance to the standard Lucas machine.
| Identifier | ExFiles\Box 51\1\ Scan333 | |
| Date | 1st February 1924 | |
| To E. {Mr Elliott - Chief Engineer} from EFC. {E. Fowler Clarke - Electrical Engineer} S E C R E T. /4383 EFC {E. Fowler Clarke - Electrical Engineer} 1/LG11.2.24. X.4383 - GOSHAWKAero EngineCodename for 20HP Car / Aero Engine after KestrelAero Engine DYNAMO FOR EAC. CHASSIS. In confirmation of our telegram answering yours. The cutting-in speed and maximum ampere out-put on the GoshawkAero EngineCodename for 20HP Car / Aero Engine after KestrelAero Engine machine are 660 R.P.M. and 9 amperes, and similar quantities for the standard Lucas machine are 710 R.P.M. and 11 amperes. These are both for the fully hot condition known by us as, engine condition. We do not think that the GoshawkAero EngineCodename for 20HP Car / Aero Engine after KestrelAero Engine machine on a 40/50 HP. is a really satisfactory proposition, though no doubt it would be satisfactory in a majority of cases, the margin of out-put is insufficient to cover the extreme cases. EFC. {E. Fowler Clarke - Electrical Engineer} | ||