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 effect of coolant type and inlet temperature on the cylinder head temperature for a Kestrel six-cylinder unit.
| Identifier | ExFiles\Box 54\4\ Scan106 | |
| Date | 2nd August 1934 | |
| FIG I KESTREL SIX CYLINDER UNIT CURVES SHOWING THE EFFECT OF COOLANT AND COOLANT TEMPERATURE ON CYL. HEAD TEMP. BLOCK - STD KESTREL E 37513/4 R.P.M. 2500 BOOST + 8.0" Hg FUEL D.T.D. 230 CONSTANT TOTAL FUEL CONSUMPTION. Nº3 CYLINDER THERMO-COUPLE TEMP ºC COOLANT INLET ºC 300 250 200 150 100 60 70 80 90 100 110 120 130 140 150 160 GAS STARTER GLYCOL COOLED WATER COOLED TOP JOINT GLYCOL COOLED WATER COOLED 37ºC 15ºC 35ºC 8ºC H.S.R 2.8.34 | ||