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).
Blueprint graph of boost pressure curves for a Supercharged Bentley, comparing diffuser and non-diffuser type superchargers.
| Identifier | ExFiles\Box 140\1\ scan0174 | |
| Date | 8th May 1935 guessed | |
| SUPERCHARGED BENTLEY. BOOST PRESSURE CURVES. TAKEN WITH 1 9/32" CHOKE STROMBERG CARB: A: DIFFUSER TYPE S/CHR Ex: 17516. ROTOR TIP SPEED AT 1000 R.P.M. OF ENGINE = 165 FT/SEC: B: NON DIFFUSER TYPE. CURVE ESTIMATED FOR SAME TIP SPEEDS AS A FROM OBSERVED RESULTS AT SLIGHTLY HIGHER SPEEDS. X-AXIS LABEL: ENGINE R.P.M. Y-AXIS LABEL: BOOST PRESSURE INS: HG: REFERENCE: HS.{Lord Ernest Hives - Chair} 2213 | ||