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).
Engine testing concerning forward pressure type intakes and carburation for long-duration flights.
| Identifier | ExFiles\Box 36\2\ scan 192 | |
| Date | 8th October 1928 guessed | |
| contd :- -8- We shall use forward pressure type intakes as we have tested these on several machines and obtained improved carburation. With this type of intake we think there will be less internal disturbance. We XXXX are also producing some throttle and mixture controls possessing a vernier adjustment for fitting in the cockpit of the 3F. machine. From this test we have proved that the F.{Mr Friese} engine can be run extremely economically and can fulfil the requirements laid down for a Long Duration Flight. This in itself however is not sufficient as it demands that the Pilot shall possess a work-ing knowledge and be familiar with the factors governing economy. We can probably assist to a large extent by arranging, where possible, for some of the necessary conditions to be fulfilled automatically - such as the desired relationship between ignition advance and throttleXXXX opening - and thereby remove the factor of the human element, but even then there will remain certain adjustments which will have to be made to suit conditions as they arise. We propose looking into the question of slightly modifying the diffuser to give the desired economical metering over the range of throttling and speeds required for the proposed flight. Hs{Lord Ernest Hives - Chair}/A.C.Lovesey. | ||