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).
Proposed design change to the Phantom II front brake linings to reduce brake squeaks.
| Identifier | ExFiles\Box 12\5\ 05-page192 | |
| Date | 26th March 1930 | |
| To BY.{R.W. Bailey - Chief Engineer} From Hs{Lord Ernest Hives - Chair}/Rn.{Mr Robinson} c. to Da.{Bernard Day - Chassis Design} MX.{John H Maddocks - Chief Proving Officer} 87420 Hs{Lord Ernest Hives - Chair}/Rn.{Mr Robinson}2/MJ. 26.3.30. PHANTOM 11 FRONT BRAKES. In the very early days of the front wheel brakes we chamfered the ends of the linings to avoid axle jaggers. This has been somewhat accentuated by the fitters until we are losing quite a valuable portion of lining. We consider that a very mild chamfer is all that is necessary now and would recommend that all the drawings should be altered accordingly. We believe that some of our brake squeaks may be due to high unit pressures. Proposed. Present. Hs{Lord Ernest Hives - Chair}/Rn.{Mr Robinson} | ||