Letter to a customer in Paris regarding modifications for engine cooling in hot climates.
| Identifier | ExFiles\Box 47\1\ Scan186 | |
| Date | 1st December 1925 | |
| RJS/Hl1725 1st December 1925. Juan Correa, Esq., Grand Hotel, 12, Boulevard des Capucines, Paris. Dear Sir, With reference to your letter of the 21st November, your son has visited our Works, where your car is receiving careful attention. We have not yet received a full report from our engineers since your car was received, but we would take this opportunity of pointing out to you that after very considerable experience of the use of our cars in different parts of the world where there are long mountain passes and hot climates, Mr. Royce has designed a special bonnet with louvres at the sides to enable the hot air readily to escape from around the engine. A special high speed fan has been fitted to your engine which draws in a considerable quantity of air through the radiator, and, passing through the radiator, this air becomes hot. It is useless forcing hot air around the engine under the bonnet unless it is allowed to escape easily. The particular series or type of chassis, of which 14-TU is one, has many improvements over the previous series of Rolls-Royce chassis, but its design also makes it desirable that when the car is to be used for travelling in unusually mountainous districts or in hot climates, provision should be made for the engine to be kept cool by means of a louvred bonnet. On consideration we feel sure you will appreciate that from our long experience of our cars, Mr. Royce is perhaps the best judge of what is desirable in regard to each type of car which he designs, and should you wish to take advantage of Mr. Royce's knowledge and opinion, we should be glad to arrange for a louvred bonnet to be fitted. | ||
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).