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).
Results of radiator tests on a Cadillac car at Brooklands.
| Identifier | ExFiles\Box 155\1\ scan0238 | |
| Date | 24th June 1936 guessed | |
| RESULTS OF RADIATOR TESTS ON CADILLAC CAR AT BROOKLANDS. Object of test. | Conditions of test. | Critical air temp. °C. | Temp. of air leaving rad. core - °C. (av. air temp. for day - 25°C) | (1) Cadillac car as std. 40 m.p.h. full throttle. (Mk.{R. E. B. Meade-King} V matrix) | 40 | 61 | (2) Cadillac car as std. Full speed 87.75 m.p.h. - full throttle. (Mk.{R. E. B. Meade-King} V matrix) | 49 | 50 | (3) Cadillac car - Fan removed 40 m.p.h. full throttle - (Mk.{R. E. B. Meade-King} V matrix.) | 19 | 80 | (4) Cadillac car - fan removed Full speed - 89.4 m.p.h. - Full throttle - Mk.{R. E. B. Meade-King} V matrix. | 39 | 56 Compares with (1) above. | (a) Ph.III car - Louvred bonnet - 40 m.p.h full throttle (1) Mk.{R. E. B. Meade-King} V matrix. (2) Mk.{R. E. B. Meade-King} VI (estimated from last tests.) | 23 29.5 | - Compares with (2) above. | (b) Ph.III car Louvred bonnet. Full speed ) - Mk.{R. E. B. Meade-King} VI matrix. Full throttle) (estimated from last tests)- precise figures yet to be obtained. | 35 - 37 | Compares with (3) above. | (c) Ph.III car - Louvred bonnet and no fan. 40 m.p.h. full throttle Mk I matrix (from last tests) | 22 | | ||