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).
Phantom III engine flooding, comparing petrol pump flowmeter and filter performance.
| Identifier | ExFiles\Box 131\4\ scan0219 | |
| Date | 19th May 1937 | |
| c Hs{Lord Ernest Hives - Chair} [Struck through] c Rm{William Robotham - Chief Engineer} c RW [Struck through] c Rm{William Robotham - Chief Engineer}/Sml [Struck through] c Dev [Struck through] c Pen [Struck through] from Mx{John H Maddocks - Chief Proving Officer} 1113 Mx{John H Maddocks - Chief Proving Officer}8/T 19.5.37 PHANTOM III FLOODING E1/HP.15.5.37 We have made some comparisons on the Petrol Pump Flowmeter and on an engine on the Unit Test Bed, between the 60 mesh gauze filter which is standard Phantom III, and a 100 mesh filter which is standard on the 25/30HP. On the flowmeter the coarse gauze filter passes petrol at the rate of 514 pints per hour. With the fine gauze 450 pints per hour. The maximum demand of the Phantom III engine is about 120 pints per hour. On the Unit test bed, we have proved that a fine filter can have more than two-thirds of its area stopped up by solder before the engine shows signs of petrol starvation. | ||