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).
Letter to S. Smith & Sons requesting thermostats for experimental fitting to a Kestrel aero engine.
| Identifier | ExFiles\Box 39\4\ Scan353 | |
| Date | 23th February 1934 | |
| V 3499 Expl. Dept. Hs{Lord Ernest Hives - Chair}/Lov.{Mr Lovesey}7/MJ. 23rd. February, 1934. Messrs. S. Smith & Sons (Motor Accessories) Ltd., Cricklewood Works, LONDON.N.W.2. Dear Sirs, We wish for experimental purposes to fit two thermostats to the outlet water pipes on our Kestrel aero engine. Pump circulation is employed and the normal water flow through each of the two outlet pipes of 1½" inside diameter is 45 galls/min. A by-pass pipe of 5/8" would be used passing to the carburetter heating jacket and then to the suction side of the pump. It is desired that this by-pass through the carburetter should always be in operation. We wish the thermostats to stop the circulation below 75ºC. except for that which passes through the carburetter jacket. It is also desired that the presence of the thermostats will not restrict the water flow at temperatures above 80 to 85ºC. We should like to know if you could supply an instrument which would fit in with the above scheme and would be interested to have the specification of what you could offer us. We are, Yours faithfully, For Rolls-Royce Ltd. | ||