Failures in the shock damper control system, attributing them to oil loss rather than dirt.
| Identifier | ExFiles\Box 99\3\ scan0042 | |
| Date | 17th December 1937 | |
| BY. {R.W. Bailey - Chief Engineer} c to Rm {William Robotham - Chief Engineer} /Les. c to Dn. c to Ds/Hdy. {William Hardy} c to Hs. {Lord Ernest Hives - Chair} 200 B Hd {Mr Hayward / Mr Huddy} /SB {Mr Bull/Mr Bannister} 14/HR.17.12.37. re SHOCK DAMPER CONTROL. 442. With reference to your BY.14/G. 15.12.37., our general experience has been that the chief cause of failure of the damper control system has been loss of oil from the system and not due to dirt under the control valve. We have certainly had instances of the latter, but they have been few compared with such troubles as leaking unions and joints etc., which cause oil to be lost. As regards the governor characteristic on this system we have not found it to be essential and we believe it could be dispensed with. In fact, in certain cases where customers complain of the riding at moderate speeds, we have found the rising governor characteristic to be a debit because it prevents us keeping the damper poundage down at 35/40 miles per hour. Hd {Mr Hayward / Mr Huddy} /SBS | ||
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).