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).
The results of testing new diffusers, detailing efficiency, pressure, horsepower and air temperature.
| Identifier | WestWitteringFiles\O\2January1926-March1926\ Scan194 | |
| Date | 29th March 1926 guessed | |
| contd :- -2- is too big and the efficiency consequently low. They are making up new diffusers. The results obtained at 20,000 revs. are roughly :- Efficiency 55% Pressure 14 lbs/sq.in. Horse power 40 Air temperature 90°C Whilst the blower is off E.16. we are continuing running it with normal induction pipes and carburetters. Hs.{Lord Ernest Hives - Chair} | ||