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).
Table of temperature readings in degrees Celsius for Ph.III Cylinder Heads under various test conditions.
| Identifier | ExFiles\Box 93\4\ scan0039 | |
| Date | 27th June 1936 guessed | |
| (A) Temperatures in °C. at various points in Ph.III Cylinder Heads. Note: All numbers etc. of thermocouples & thermometers refer to diagram (1). 'A' series of tests. Point at which temperature was recorded (see diagram) Condition of Test Thermo-Couple Number Thermo couple Thermo Thermo-meter on 'B' head 1 2 3 4 5 6 7 8 9 10 on 'E' meter in pocket at front head as A B (5) on A (1) Heads as std. 'A' series of tests. a) 2500 rpm.) Full throt- 74 78 78 78 84 93 90 86 86 89 83 82 73 74 b) 750 rpm.) tle. 73 79 80 78 93 101 90 90 89 96 85 82 73 72 (2) As diagram (2). 'A' series of tests. a) 2500 rpm.) Full throt- - 79 - 78 85 82 - - - - - 77 74 - b) 750 rpm.) tle. - 77 - 77 88 86 - - - - - 78 74 - (3) As diagram (3). 'A' series of tests. thermo-couples 11 12 (a) 2500 rpm.) Full throt- 80 85 - - - - 85 - 86 - - 86 76 77 74 (b) 750 rpm.) tle. 79 85 - - - - 84 - 85 - - 85 75 76 73 (4) As diagram (4). 'A' series of tests. Full throttle - 73 - - - - - 73 - 84 - - 84 74 72 76 2500 rpm. (5) As diagram (5). 'A' series of tests. Full throttle - 75 - - - - - 77 - 80 - - 78 76 72 86 2500 rpm. | ||