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).
Data table from Brooklands tests comparing vehicle cooling performance under various configurations.
| Identifier | ExFiles\Box 109\4\ scan0120 | |
| Date | 28th June 1939 | |
| BROOKLANDS TESTS. FIG. 7. TABLE DATA: COLUMN HEADERS: NO, TEST CONDITIONS, M.P.H. (MAX:), TOP WATER (MAX. SPEED / 30MPH), BOTTOM WATER (MAX. SPEED / 30MPH), FAN AIR (MAX. SPEED / 30MPH), AIR TEMP., UNDERBONNET (MAX. SPEED / 30MPH), CRITICAL AIR (MAX. SPEED / 30MPH) ROW 7: NO: 7 TEST CONDITIONS: TESTS ON 3.B.50 M.P.H. (MAX.): 90 TOP WATER: MAX. SPEED 91, 30MPH 98 BOTTOM WATER: MAX. SPEED 84, 30MPH 90 FAN AIR: MAX. SPEED 53.5, 30MPH 65 AIR TEMP.: 27.5 UNDERBONNET: MAX. SPEED 44, 30MPH 52 CRITICAL AIR: MAX. SPEED 36.5, 30MPH 29.5 ROW 4: NO: 4 TEST CONDITIONS: TESTS ON BUICK M.P.H. (MAX.): 90 TOP WATER: MAX. SPEED 78, 30MPH 88 BOTTOM WATER: MAX. SPEED 71, 30MPH 82 FAN AIR: MAX. SPEED 52, 30MPH 65.5 AIR TEMP.: 26 UNDERBONNET: MAX. SPEED 55.5, 30MPH 69 CRITICAL AIR: MAX. SPEED 44, 30MPH 37.0 ROW 2: NO: 2 TEST CONDITIONS: 30.G.VII STANDARD WRAITH FAN M.P.H. (MAX.): 87 TOP WATER: MAX. SPEED 82, 30MPH 82 BOTTOM WATER: MAX. SPEED 74.5, 30MPH 72 FAN AIR: MAX. SPEED 52.5, 30MPH 54 AIR TEMP.: 29.5/22 UNDERBONNET: MAX. SPEED -, 30MPH 47 CRITICAL AIR: MAX. SPEED 45, 30MPH 39.5 ROW 8B: NO: 8B TEST CONDITIONS: 30.G.VII SHORT BLADE FAN WITH INCREASED SET M.P.H. (MAX.): 87 TOP WATER: MAX. SPEED 74, 30MPH 81 BOTTOM WATER: MAX. SPEED 65, 30MPH 71 FAN AIR: MAX. SPEED 46, 30MPH 53 AIR TEMP.: 21 UNDERBONNET: MAX. SPEED 42, 30MPH 45 CRITICAL AIR: MAX. SPEED 44, 30MPH 38.5 ROW 16: NO: 16 TEST CONDITIONS: 30.G.VII BONNET FLIP FLAPS OPEN OTHERWISE AS 8.B. M.P.H. (MAX.): 87 TOP WATER: MAX. SPEED 73, 30MPH - BOTTOM WATER: MAX. SPEED 62.5, 30MPH - FAN AIR: MAX. SPEED 44.5, 30MPH - AIR TEMP.: 20 UNDERBONNET: MAX. SPEED 42, 30MPH - CRITICAL AIR: MAX. SPEED 45, 30MPH - ROW 17: NO: 17 TEST CONDITIONS: 30.G.VII BONNET REMOVED OTHERWISE AS 8.B. M.P.H. (MAX.): 87 TOP WATER: MAX. SPEED 69, 30MPH - BOTTOM WATER: MAX. SPEED 60, 30MPH - FAN AIR: MAX. SPEED 42.5, 30MPH - AIR TEMP.: 20 UNDERBONNET: MAX. SPEED 33, 30MPH - CRITICAL AIR: MAX. SPEED 49, 30MPH - ROW 10: NO: 10 TEST CONDITIONS: 30.G.VII BUICK FAN M.P.H. (MAX.): 87 TOP WATER: MAX. SPEED 77.5, 30MPH 89 BOTTOM WATER: MAX. SPEED 69, 30MPH 78 FAN AIR: MAX. SPEED 48, 30MPH 59 AIR TEMP.: 22 UNDERBONNET: MAX. SPEED 44, 30MPH 51.5 CRITICAL AIR: MAX. SPEED 42.5, 30MPH 32.0 ROW 14: NO: 14 TEST CONDITIONS: 30.G.VII NO FAN FITTED M.P.H. (MAX.): 89 TOP WATER: MAX. SPEED 92, 30MPH 90 BOTTOM WATER: MAX. SPEED 82.5, 30MPH 84 FAN AIR: MAX. SPEED 55, 30MPH 58 AIR TEMP.: 29/20 UNDERBONNET: MAX. SPEED -, 30MPH 41.5 CRITICAL AIR: MAX. SPEED 36.5, 30MPH 29.0 ROW 1: NO: 1 TEST CONDITIONS: 30.G.VII WRAITH FAN WITH 5.50" BLADES M.P.H. (MAX.): 87 TOP WATER: MAX. SPEED 81, 30MPH - BOTTOM WATER: MAX. SPEED 74, 30MPH - FAN AIR: MAX. SPEED 51, 30MPH - AIR TEMP.: 29 UNDERBONNET: MAX. SPEED -, 30MPH - CRITICAL AIR: MAX. SPEED 46.0, 30MPH - ROW 18: NO: 18 TEST CONDITIONS: 30.G.VII NO FAN FITTED. M.P.H. (MAX.): 89 TOP WATER: MAX. SPEED 92, 30MPH 100.5 BOTTOM WATER: MAX. SPEED 81, 30MPH 92 FAN AIR: MAX. SPEED 44, 30MPH 60 AIR TEMP.: 18 UNDERBONNET: MAX. SPEED 34, 30MPH 44.5 CRITICAL AIR: MAX. SPEED 24.5, 30MPH 18.5 ROW 20: NO: 20 TEST CONDITIONS: 30.G.VII SHORT BLADED FAN AS TEST 8.B. M.P.H. (MAX.): 87 TOP WATER: MAX. SPEED 83.5, 30MPH 89.0 BOTTOM WATER: MAX. SPEED 72.5, 30MPH 80 FAN AIR: MAX. SPEED 44, 30MPH 53 AIR TEMP.: 19 UNDERBONNET: MAX. SPEED 36, 30MPH 45 CRITICAL AIR: MAX. SPEED 34, 30MPH 29 ROW 22: NO: 22 TEST CONDITIONS: 30.G.VII AS 20 WITH SPOT LIGHT REMOVED. M.P.H. (MAX.): 87 TOP WATER: MAX. SPEED 83.5, 30MPH - BOTTOM WATER: MAX. SPEED 73, 30MPH - FAN AIR: MAX. SPEED 44, 30MPH - AIR TEMP.: 19 UNDERBONNET: MAX. SPEED 37, 30MPH - CRITICAL AIR: MAX. SPEED 34, 30MPH - VERTICAL TEXT (RIGHT SIDE): BUICK AND 3.B.50. No.2 MATRIX. 30.G.VII NO. I MATRIX BOTTOM RIGHT CORNER: 28.6.39 | ||