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).
Temperature tests comparing the performance of a new type radiator against an old type.
| Identifier | ExFiles\Box 78\3\ scan0005 | |
| Date | 19th May 1909 | |
| R.R. 148. (20 H) (F.{Mr Friese} 23. 22.4.09) G.{Mr Griffiths - Chief Accountant / Mr Gnapp} 6930. Temperature tests taken on new type radiator, engine running at the same speed under same conditions etc:- X496 Tests taken by Wooler 19/5/09 3500 Max. constant temperature reached after running about one hour on both types of radiator - With new type radiator - rise in temperature of floor boards - 44.5 degs. C Rise in temp. of water in radiator - 74.5 degs. C With old type Radiator - Rise in temp. of floor boards 45.5 degs. C. Rise in temperature of water in radiator - 63.5 degs C New type reduce floor board to 2% Increase water 13% Atmospheric temperature - 14 degs. C | ||