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).
Status of fitting new exhaust valves to outstanding Peregrine engines due to failures.
| Identifier | ExFiles\Box 169\4\ img263 | |
| Date | 25th May 1933 | |
| To RHC.{R. H. Coverley - Production Engineer} from Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer}7/KT. 25.5.33. PEREGRINE EXHAUST VALVES to E.100928. We should be glad to know if there are any Peregrine engines outstanding which have not been fitted with these new exhaust valves. The matter is important as we have already scrapped two engines through old type valves breaking. HS{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} | ||