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).
Graph plotting the brake drum cooling rate against the speed of the car for various wheel configurations.
| Identifier | ExFiles\Box 120\1\ scan0312 | |
| Date | 12th February 1941 | |
| BRAKE DRUM COOLING AGAINST SPEED OF CAR. 10BE & 4B50 CHASSIS FIGURE 3 Y-AXIS: COOLING RATE AT 150°C IN °C PER MINUTE X-AXIS: SPEED IN MILES PER HOUR DATA SERIES: O.S.F. 11 B.Y. STEEL WHEELS. 1. N.S.F. 10 B.Y. WIRE WHEELS WITH DISCS. 2. O.S.F. 4 B.50. STEEL WHEELS. 3. O.S.R. 10 B.Y. WIRE WHEELS WITH DISCS. 4. O.S.R. 4 B.50. STEEL WHEELS. Rem / by H.P. 12-2-41 | ||