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).
Improvements for the Phantom car, including a duralumin front brake carrier and weight reduction modifications to the pivot and hub.
| Identifier | ExFiles\Box 67\2\ scan0178 | |
| Date | 3rd October 1925 | |
| To Hs.{Lord Ernest Hives - Chair} To BY.{R.W. Bailey - Chief Engineer} } FROM DA.{Bernard Day - Chassis Design} H8420 DA{Bernard Day - Chassis Design}3/M3.10.25. 10,000 MILES PHANTOM CAR. X. 8940a X. 8420 It is understood that this car will have the duralumin brake carrier on the front brakes, also as much of the improved machining shewn on N.sch.2055 as possible. We understand that one of the difficulties is the different point of meeting between the tyre and the pivot. Would Derby therefore arrange to take a pivot with the standard meeting point and reduce the weight of trepanning out the brake carrier flange on the pivot below the spigot, also by scalloping between the bolts, and milling away the waste metal on the back face of the flange. If it were also possible to get the lightened hub, these three parts would constitute a definite improvement for immediate adoption, if successful. DA.{Bernard Day - Chassis Design} | ||