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).
Report concluding the Rm.30 intake bend was a failure and identifying a better alternative.
| Identifier | ExFiles\Box 103\4\ scan0149 | |
| Date | 23th January 1936 | |
| -3- Hs{Lord Ernest Hives - Chair}/CTS.{C. Trot Salt - Carburation}5/KW.23.1.36. The Intake Bend Rm.{William Robotham - Chief Engineer}30. It is interesting to note that in making this bend, exactly the same principles had been adopted which proved successful in making an intake bend for the 4 1/4 litre Bentley. Actually, the Rm.{William Robotham - Chief Engineer}30 bend was so hopeless that the engine would not run below 1500 r.p.m. full throttle, and no reading could be recorded on the Cambridge Instrument (used for all these tests) as readings were right off the scale end to end relative to front and rear cylinders. Conclusion. That the intake bend E.60657 is the best available at present. A bend must be produced to give a straight air flow column into the carburetter. Hs{Lord Ernest Hives - Chair}/C.T.Salt. | ||