Temperature readings in Centigrade taken at one-mile intervals with the rear of the bonnet wedged open.
| Identifier | ExFiles\Box 11\5\ 05-page084 | |
| Date | 23th April 1939 guessed | |
| (a) REAR OF BONNET, EXHAUST SIDE, WEDGED OPEN APPROX 1.5" FLAPS OPEN. Degrees Centigrade. Miles. Atmos Temp. Oil Temp. Water Temp. Temp Under Bonnet. IN. 1 .. 13 .. 94 .. 75 .. 60 2 .. 13 .. 94 .. 78 .. 63 3 .. 13 .. 95 .. 77 .. 65 4 .. 13 .. 96 .. 76 .. 65 5 .. 12 .. 96 .. 78 .. 66 6 .. 12 .. 96 .. 77 .. 67 7 .. 11 .. 96 .. 77 .. 67 8 .. 11 .. 96 .. 75 .. 66 9 .. 11 .. 96 .. 75 .. 65 10 .. 11 .. 96 .. 76 .. 66 OUT. 1 .. 11 .. 96 .. 74 .. 65 2 .. 11 .. 96 .. 75 .. 66 3 .. 11 .. 96 .. 77 .. 67 4 .. 11 .. 96 .. 75 .. 65 5 .. 11 .. 96 .. 75 .. 65 6 .. 11 .. 97 .. 76 .. 66 7 .. 11 .. 98 .. 75 .. 65 8 .. 11 .. 98 .. 75 .. 65 9 .. 12 .. 99 .. 75 .. 65 10 .. 12 .. 99 .. 75 .. 65 | ||
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).