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).
Brake and clutch squeaks on a 10,000-mile Goshawk-11 test car.
| Identifier | ExFiles\Box 46\2\ Scan079 | |
| Date | 31th March 1922 | |
| Hy.{Tom Haldenby - Plant Engineer} from EP.{G. Eric Platford - Chief Quality Engineer} X4086 EP{G. Eric Platford - Chief Quality Engineer}3/LG31.3.22. 5-GOSHAWK-11. 10,000 MILES TEST CAR. X4086 X4257 We have not yet been able to do anything with regard to the brake squeaks but it is a fact that with your car the flanges of the drums are especially deep - the total diameter RHC.{R. H. Coverley - Production Engineer} reports being at least 1" greater than the proposed standard and as fixed on Hs{Lord Ernest Hives - Chair}'s car 4-Goshawk-11 which he reports are excellent. Can you give us any information as to what the cause of these squeaks on these brakes really is. We intend to especially note the behaviour on 6/7-Goshawk-11 cars. P.S. As regards clutch - understand Hs.{Lord Ernest Hives - Chair} clutch squeak cured by giving rough treatment - allowed to slip full throttle and severely heated up. Please try this and report. EP.{G. Eric Platford - Chief Quality Engineer} | ||