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 plotting hot spot temperatures in degrees Celsius against engine RPM for three different heating methods.
| Identifier | ExFiles\Box 1\10\ B001_X106 TO X 110-page112 | |
| Date | 13th June 1933 guessed | |
| COMPARISON OF HOT SPOT TEMPS UNDER VARIOUS CONDITIONS PER II INDUCTION SYSTEM: SHEET METAL PIPE WITH POCKETED HOT SPOT CARB TO LE C 315/7 WITH NO DISTANCE PIECE MEANS OF OBTAINING READINGS: THERMO COUPLE EMBEDDED IN HOT SPOT NEXT TO INDUCTION PIPE Y-AXIS: HOT SPOT TEMP C° X-AXIS: R.P.M GRAPH LINES: STANDARD R.R EXHAUST HEATED HOT SPOT HOT SPOT TEMP ADJUSTED FOR BEST RESULTS AT EACH SPEED WATER HEATED HOT SPOT | ||