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).
Potential weight-saving improvements to the brake system for the 10,000 miles Phantom car.
| Identifier | WestWitteringFiles\N\October1925-December1925\ Scan10 | |
| Date | 1st October 1925 | |
| R.R. 235A (100 T) (S.H. 159, 11-8-20) G.{Mr Griffiths - Chief Accountant / Mr Gnapp} 2800 ORIGINAL TO HS.{Lord Ernest Hives - Chair}) FROM DA.{Bernard Day - Chassis Design} DA{Bernard Day - Chassis Design}3/MS.10.25. 10,000 MILES PHANTOM CAR X89409 48420 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.scheme 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 by 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 light-ened hub, these three parts would constitute a definite improvement for immediate adoption, if successful. DA.{Bernard Day - Chassis Design} [Signature] [Stamp: RECEIVED 2 OCT 1925] | ||