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).
Requesting a test of G.11 and Neptune induction pipes against the Dorris scheme on a 40/50 engine.
| Identifier | ExFiles\Box 180\M1\9\ img001 | |
| Date | 15th December 1921 | |
| R.{Sir Henry Royce} R.{Sir Henry Royce} 235A (500 T) (S.D. 408. 26-4-17.) Bm. 2156/13. ORIGINAL To Hs.{Lord Ernest Hives - Chair} from R.{Sir Henry Royce} c. to OJ. EP.{G. Eric Platford - Chief Quality Engineer} - X3583 Wor.{Arthur Wormald - General Works Manager} Hy.{Tom Haldenby - Plant Engineer} X422) Da.{Bernard Day - Chassis Design} Oy. Ey. Induction Pipes - G.11. and Neptune. We do not know how G.11. Induction Pipe compares with the Dorris scheme tested on the 40/50 and I should like you to test G.11. and the 40/50 with known petrol mixed with an increasing percentage of paraffin until running becomes hopelessly bad, and judge the efficiency of distribution by a percentage of fuel required per b.h.p., or to when definite mis-firing occurs. This should give us a basis of comparison for testing the value of different induction systems. The engines should be run at full throttle, and say one tenth the speed of maximum horse power. Probably some better standard conditions of comparison will suggest themselves, when you are working at the test. R.{Sir Henry Royce} | ||