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).
Inquiry regarding the need for a larger radiator for a chassis to handle a 16-mile climb in 120°F temperatures without boiling.
| Identifier | ExFiles\Box 38\2\ Scan149 | |
| Date | 9th May 1921 | |
| R.R. 199 (250T) (SDc76 19-7-17) M/P180865 X3456 U. EH. from BY.{R.W. Bailey - Chief Engineer} REC'D 9 MAY 1921 NY3-P RADIATORS. We have received a request from Sales in regard to an enquiry for a chassis that it will be necessary to have a larger radiator, as the car must climb 16 miles of a continuous gradient varying between 1 in 12 and 1 in 14, without boiling. The temperature in the shade where this climb would have to be carried out is 120°F.{Mr Friese} What information can you supply me in regard to increased radiator capacity? It appears to me that information can be obtained, if not available at present, by running a car on the dynamometer on second gear, with possibly the shutters on the bonnet closed, as these conditions would be a fair approximation to what would actually happen in service under the requirement pointed out above, if the chassis were running with the shutters in the bonnet closed. BY.{R.W. Bailey - Chief Engineer} | ||