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).
Extract detailing design updates for the Goshawk II engine, including the detachable head, induction pipe, and auxiliary drives.
| Identifier | ExFiles\Box 48\4\ Scan006 | |
| Date | 18th January 1921 | |
| R.R. 235A (100 T) (S.H. 159. 11-8-20) G.{Mr Griffiths - Chief Accountant / Mr Gnapp} 2800 X4224 TO Da.{Bernard Day - Chassis Design} from R.{Sir Henry Royce} Extract from R3/G18.1.21. X.3481. RE GOSHAWK II" (3) We expect to send you the drawing of the latest detachable head for the cylinders. We have entirely rearranged this so that we can get any amount of heat of the exhaust gases can be given to the induction pipe. it would be costly and ineffective if the exhaust came out on the other side from the inlet trunk pipe. this engine, if any, should be capable of running with the very lowest grade of petrol. The engine should be better than the best of its kind, because the plugs are in the best and most accessible place. The valve gear is properly enclosed without being clumsy. The carburetter will not drop petrol on the red hot exhaust pipe and the exhaust is well clear of the dash, the starter motor, and the dynamo. X.4238. X.4285. X.4227/8. (4) We have also finished the drive for the water pump, the oil pump, and the battery ignition we have decided, to keep this latter away from the dynamo because it allows of any dynamo being used, and also the distributor will be quite close to the ignition plugs. X.4286. X.4327. X.4328. (5) The carburetter and induction pipe system has been worked out and promises to be very nice, effective, and simple, without much chance of it being wrong, and delaying production. X.4227/8. | ||