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).
Flight tests of thermostatic radiator shutters on a Fury aircraft.
| Identifier | ExFiles\Box 39\4\ Scan319 | |
| Date | 29th June 1933 | |
| COPY OF REPORT RECEIVED FROM R.W. HARKER AT R.A.E. DATED 28.6.33. 83499 Rg.{Mr Rowledge} Wor.{Arthur Wormald - General Works Manager} By.{R.W. Bailey - Chief Engineer} Ir. RP. lp.{Mr Lappin} Hs{Lord Ernest Hives - Chair}/Hkr.{Mr Harker - RAF liaison pilot}8/MJ.29.6.33. R.A.E. THERMOSTATIC SHUTTERS. Two flights were carried out on the Fury yesterday, one flight with manually operated radiator shutters, and the other with the thermostat in operation. The object being to see what the difference in radiator temperature was on the glide. The flights consisted of climbs to 15,000 ft. and then a glide down to 2,000 ft. at 100 A.S.I. It will be seen from the attached graph that the final difference in temperature is only 3°C, and that the greatest difference occurs at the beginning of the glide, when the thermostatically operated shutters are beginning to close. This will always be the case as the thermostat cannot anticipate, but with a lower rating spring in the thermostat the shutters can be made to close quicker and earlier thereby decreasing the temperature difference. We are awaiting a new spring from lr.{Mr Ellor} and hope to test it out shortly. If this is successful we can then recommend service trials. Hs{Lord Ernest Hives - Chair}/R.W.Harker. | ||