Test results showing water and under-bonnet air temperatures recorded at one-minute intervals.
| Identifier | ExFiles\Box 31\4\ Scan233 | |
| Date | 12th October 1932 guessed | |
| (Test 2). As first test except that the thermometer for registering temperature under bonnet was moved to the N.S. of the engine within 3 inches of the exhaust manifold. Average road speed 32.3 m.p.h. Time. Water Temp oC Air Temp oC Under bonnet. Atmos Temp oC 1 Min 26 17 12.5 2 " 27 18 - 3 " 32 19 - 4 " 39 21 - 5 " 48 26 - 6 " 54 30 - 7 " 60 34 - 8 " 66 39 - 9 " 71 44 - 10 " 75 47 - 11 " 73 47 - 12 " 69 45 - 13 " 67 45 - 14 " 67 45 - 15 " 69 46 - 16 " 70 47 - 17 " 69 47 - 18 " 69 47 - 19 " 69 47 - 20 " 69 47 - 21 " 69 47 - | ||
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).