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).
Test log recording various temperature and petrol consumption readings during road tests.
| Identifier | ExFiles\Box 78\3\ scan0006 | |
| Date | 22th April 1909 | |
| Header: R.R. 148. (20 H) (F.{Mr Friese} 23. 22.4.09) G.{Mr Griffiths - Chief Accountant / Mr Gnapp} 6930. Sheet: II. Reference: X496 Column Headers: Test, Floor Boards Temperature, Temp° of water in Radiator, Petrol con-sumption M.P.G., Actual temperature, Remarks. Test 1: Test on Ashb. Rd towards Ashb. at 20 M.P.H - Floor Boards Temperature: 45°C - Temp of water in Radiator: 75°C - Petrol consumption: 12 M.P.G. - Actual temperature: 14°C - Remarks: X Test 1 (continued): - Floor Boards Temperature: 39° - Temp of water in Radiator: 78° - Petrol consumption: 14 1/2 M.P.G. - Actual temperature: 8 - Remarks: 2 Notches weaker than X Test 2: Readings on Ashbourne Hill 3rd gear - full power. Max. temp: - Floor Boards Temperature: 44, 46, 44 - Temp of water in Radiator: 79, 81, 81 - Petrol consumption: - - Actual temperature: 10 Test 3: Readings on Ashb. Hill 2nd gear full power Max temp: - Floor Boards Temperature: 46°C, 45°C - Temp of water in Radiator: 84°C, 83°C - Petrol consumption: - - Actual temperature: 9°C Test 4: Flat on Ashbourne Road returning home - Floor Boards Temperature: 40°C - Temp of water in Radiator: 77 - Petrol consumption: 16 1/2 M.P.G. - Actual temperature: 8°C Notes: All readings taken whilst running. Tests taken with special radiator 23 1/2" wide 18 1/2" deep - extra wide gills 5/8" gills 19" Special. | ||