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).
Table detailing the critical air temperatures (c.a.t.) of various experimental cars under different conditions.
| Identifier | ExFiles\Box 131\5\ scan0144 | |
| Date | 7th November 1940 | |
| Rm.{William Robotham - Chief Engineer} from Rm{William Robotham - Chief Engineer}/Col. Rm{William Robotham - Chief Engineer}/Col.3/ET.7.11.40. CRITICAL AIR TEMPERATURES OF EXPERIMENTAL CARS. The following tables gives the c.a.t. of several of the Experimental Cars under full throttle maximum speed, and full throttle m/h conditional. No figures are available for 4.B.50; 11.B.V; and 12.B.V; as the standard of cooling on these cars has not been determined: CHASSIS CRIT:AIR TEMP: F/T. MAX:SPEED. CRIT:AIR TEMP: F/T 30 M.P.H. 30.G.VII. 45.0 39.5 3.B.50. 36.5 29.5 1-R-1 46.5 ---- With Mk.VI matrix and thermostatic shutters. 1-R-1 40.0 ---- With Mk.III matrix and fixed shutters. 8.B.V. 44.0 37.5 Towing tests at 40 m.p.h. in direct gear. BUICK 44.0 37.0 Rm{William Robotham - Chief Engineer}/Col. | ||