Test results for a large tube radiator on model 25-EX, comparing performance with shutters open and closed.
| Identifier | ExFiles\Box 11\3\ 03-page442 | |
| Date | 21th July 1931 guessed | |
| (2) TESTS ON 25-EX (cont'd) LARGE TUBE RADIATOR. 4 miles run each way on each test. Tests started at 75°C | Shutters open at 60 MPH. | Shutters closed at 60 MPH. | |---|---| | AIR In | AIR Out | ZAMBRI THERM. In | ZAMBRI THERM. Out | AIR In | AIR Out | ZAMBRI THERM. In | ZAMBRI THERM. Out | | 18 | 19 | 74 | 75 | 18 | 19 | 78 | 78 | | 18 | 19 | 73 | 75 | 18 | 19 | 78 | 78 | | 18 | 19 | 73 | 75 | 18.5 | 19 | 77 | 79 | | 18 | 19 | 74 | 76 | 18.5 | 19 | 78 | 79.5 | | Shutters open at 60 MPH. | Shutters closed at 60 MPH. | |---|---| | AIR In | AIR Out | ZAMBRI THERM. In | ZAMBRI THERM. Out | AIR In | AIR Out | ZAMBRI THERM. In | ZAMBRI THERM. Out | | 19 | 19 | 74 | 76 | 19 | 19 | 76 | 77 | | 19 | 19 | 73 | 77 | 19 | 19 | 77 | 78 | | 19 | 19 | 73 | 78 | 19 | 19 | 78 | 79 | | 20 | 19 | 74 | 78 | 19 | 19 | 78 | 79 | | Shutters open at 60 MPH. | Shutters closed at 60 MPH. | |---|---| | AIR In | AIR Out | ZAMBRI THERM. In | ZAMBRI THERM. Out | AIR In | AIR Out | ZAMBRI THERM. In | ZAMBRI THERM. Out | | 19 | 20 | 74 | 75 | 19 | 19 | 76 | 78 | | 19.5 | 20 | 73 | 76 | 19 | 19 | 77 | 78 | | 19 | 20 | 74 | 78 | 19 | 19.5 | 78 | 79 | | 19 | 20 | 74 | 77 | 19 | 20 | 79 | 80 | The above tests were done between 9.0 am and 11.0 am. Readings taken at every mile. A W Roberts | ||
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).