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).
Graph showing the estimated power increase against reduced induction pipe depression for a standard Phantom carburettor at 2750 RPM.
| Identifier | ExFiles\Box 69\4\ scan0369 | |
| Date | 25th November 1924 guessed | |
| ESTIMATED POWER INCREASE WITH REDUCED INDUCTION PIPE DEPRESSION RELATIVE TO THE DEPN OBTAINED WITH STD PHANTOM CARB. AT 2750 R.P.M. PERCENTAGE INCREASE OF I.H.P. INDUCTION PIPE DEPRESSION Ins. Hg. DEPN WITH STD. CARB. AT 2750 R.P.M. No 2. OEP. | ||