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).
Bar chart comparing the rate of water temperature increase during idling tests for a 30-G-VII and a Buick at Brooklands.
| Identifier | ExFiles\Box 109\4\ scan0119 | |
| Date | 22th June 1939 | |
| 30 - G - VII. AND BUICK. - BROOKLANDS TESTS - IDLING COMPARISON. FIG. IV. Y-AXIS: RATE OF INCREASE OF WATER TEMP. (°C / MIN.) X-AXIS: TEST No SECTION 1: 30-G-VII + No 2 MATRIX. - TEST 4: BUICK - TEST 2: 30-G-VII - STANDARD WRAITH FAN. - TEST 8A: 30-G-VII - SHORT BLADED FAN. - TEST 8B: 30-G-VII - SHORT BLADED FAN WITH INCREASED BLADE SET ON TRAILING EDGE - VERY NOISY. - TEST 10: 30-G-VII - BUICK FAN. - TEST 14: 30-G-VII - NO FAN. SECTION 2: 30-G-VII No 1 MATRIX. - TEST 18: 30-G-VII - NO FAN FITTED. (Value noted as 3.80) - TEST 20: 30-G-VII - SHORT BLADED FAN AS ON TEST 8B. | ||