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).
Page discussing the heating effect on oil in shock dampers, with reference to the B.III front damper and Phantom III.
| Identifier | ExFiles\Box 154a\4\ scan0067 | |
| Date | 15th February 1938 | |
| -2- Da {Bernard Day - Chassis Design} /DB. {Donald Bastow - Suspensions} 20/N.15.2.38 Cont'd. {John DeLooze - Company Secretary} ------------------------- The most obvious drawback of a small volume displacement in a shockdamper is the heating effect on the oil. On the B.III front damper the temperature rise of the oil worked on, assuming 100 lb. load at the wheel, is 4° F per stroke, and as the clearance volume is practically negligible one would expect the increase of the temperature of the working oil to be rapid when conditions lead to large wheel movements, such as running over rough tracks or high speed work at Brooklands. It is difficult to imagine the dampers successfully withstanding a trip across the Sahara such as that undertaken by the Phantom III. Da {Bernard Day - Chassis Design} /DB {Donald Bastow - Suspensions} | ||