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).
Dynamometer testing of a Goshawk radiator and a 40/50 car's cooling performance.
| Identifier | ExFiles\Box 38\2\ Scan174 | |
| Date | 9th June 1922 | |
| To R.{Sir Henry Royce} from Hs.{Lord Ernest Hives - Chair} c. to CJ. c. to E.{Mr Elliott - Chief Engineer} c. to Da.{Bernard Day - Chassis Design} c. to BY.{R.W. Bailey - Chief Engineer} c. to EP.{G. Eric Platford - Chief Quality Engineer} X3456 HS{Lord Ernest Hives - Chair}4/LG9.6.22. GOSHAWK RADIATOR X.4240. X.3456. With the 40/50 car running on the road wheel dynamometer, we cannot run full power unless we add cold water to keep the temperature down. With the 40/50 H.P. running at 1250 R.P.M. full power, we add 5 gallons of cold water in 3 1/4 minutes running to maintain the temperature at 85°C. With the special smaller size of fan pulley on the 40/50 H.P. we require 50% less water at 1250 R.P.M., 20% less at 500 R.P.M. With any make of car we have testd on the dynamometer it has always been necessary to add cold water in order to run full power for any length of time. Hs.{Lord Ernest Hives - Chair} | ||