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).
Summary of radiator tests conducted in France, comparing small and large hexagon dented types under various conditions.
| Identifier | WestWitteringFiles\W\May1931-August1931\ Scan088 | |
| Date | 7th August 1931 | |
| Hs{Lord Ernest Hives - Chair}/Sm2/AU7.8.31. contd. SUMMARY OF RADIATOR TESTS IN FRANCE. SMALL HEXAGON DENTED. 60 M.P.H. Air temp. 15°C. Level road. With shutters open Without shutters open. Water outlet temperature 69°C. 73°C. 70 M.P.H. Air temp. 19°C. Water outlet temperature 77°C. 79.5°C. Hill climbing on the Col de la{L. A. Archer} Faucille. Air temp. btm. of hill Air temp. top of hill Top water temp. Start. Finish. 20 17 60 85 ~~33~~ 20 17 60 88 ~~30~~ All tests shutters open. LARGE HEXAGON DENTED. 60 M.P.H. Air temp. 19°C. With shutters open Without shutters open. Water outlet temperature 75°C. 78.5°C. 70 M.P.H. Air temp. 14°C. Level road. Water outlet temperature 75.5°C. 79°C. Hill climbing on the Col de la{L. A. Archer} Fancille. Air temp. top of hill Air temp. btm. of hill Top water temp. Start. Finish. 13 18 60 85 ~~st 28~~ 16 20 80 90 ~~st 26~~ | ||