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).
The change of material for Peregrine brakes from Duralumin and Aluminium to mild steel.
| Identifier | ExFiles\Box 120\1\ scan0110 | |
| Date | 14th December 1932 | |
| 84612 To BY.{R.W. Bailey - Chief Engineer} From Hs.{Lord Ernest Hives - Chair} c. to Wor.{Arthur Wormald - General Works Manager} c. to E.{Mr Elliott - Chief Engineer} c. to RHC.{R. H. Coverley - Production Engineer} c. to Sft.{Mr Swift} Hs.{Lord Ernest Hives - Chair}3/MJ.14.12.32. Re. PEREGRINE BRAKES. X40-7. We prefer to use the mild steel brake carriers in place of the Duralumin. We find that Duralumin brake carrier plates were tried out on the original F.2 and had to be discarded for mild steel, because of them being unsatisfactory. We should therefore like all future cars to have mild steel brake carriers. The other alteration it is proposed to adopt on Peregrine brakes is mild steel forged brake shoes in place of the Aluminium. Hs.{Lord Ernest Hives - Chair} | ||