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).
Summary of radiator suitability tests for a Phantom III Continental car at Brooklands.
| Identifier | ExFiles\Box 131\1\ scan0313 | |
| Date | 6th August 1937 | |
| SUMMARY OF RESULTS OF RADIATER SUITABILITY TESTS CARRIED OUT ON 39 EX (PH. III CONTINENTAL CAR) AT BROOKLANDS 6TH & 7TH AUGUST 1937. TABLE DATA: COLUMN HEADERS: CONDITION OF TEST TOP WATER TEMP °C BOTTOM WATER TEMP °C TEMP: RISE °C PRESS: IN LBS/D" SYSTEM TEMP AT REAR CYL: HEAD(DASH) TEMP UNDER BONNET NEAR DASH ATMOSPHERIC TEMP °C CRITICAL AIR TEMP ROW 1 (FULL THROTTLE - MAX: SPEED): - CONDITION: ① STD: TOP GEAR TEST MADE FOR MINIMUM NECESSARY DISTANCE - FAN BELT TIGHT. - VALUES: 101.0, 88.5, 12.5, 10.75, - ABOVE 102, 54, 31, 30 ROW 2 (FULL THROTTLE): - CONDITION: ② STD: TOP GEAR - TEST MADE OVER 6 LAPS - FAN BELT STRETCHED. - VALUES: 99.5, 85.5, 14.0, 6.25, ABOVE 104 APPROX:, 52, 27, 27.5 ROW 3 (FULL THROTTLE): - CONDITION: ③ OVERDRIVE - TEST MADE OVER 4 LAPS FAN BELT TIGHT - VALUES: 90.0, 76.7, 13.3, 2.00, 96, 47.5, 25.5, 35.5 ROW 4: - CONDITION: IDLING WITH CAR STATIONARY APPROX: 280 R.P.M. TEMPS: STEADY AFTER 45 MINS. - VALUES: 97.0, 93.0, 4.0, -, ABOVE 101, 67.0, 29.5, 32.5 NOTE:- CAR FITTED WITH LOUVRED BONNET, 5 BLADE CADILLAC FAN, 1/1 RATIO FAN DRIVE. CRITICAL AIR FIGURE GIVEN TO 100°C ASSUMING NO PRESSURE. BEST SPEEDS OBTAINED LAP 1/2 MILE. ① STD: TOP 1.52 = 88.94 19.4 = 92.78 ② OVERDRIVE 1.52 = 88.94 19.4 = 92.78 | ||