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).
Revised specification for Peregrine No. 5 unit, detailing part modifications and fitting dates.
| Identifier | ExFiles\Box 169\4\ img172 | |
| Date | 12th May 1933 | |
| To hs.{Lord Ernest Hives - Chair} from RHC{R. H. Coverley - Production Engineer}/WSC.{W. S. Cassel} RHC{R. H. Coverley - Production Engineer}/WSC.{W. S. Cassel}3/AP.12.5.33. PEREGRINE NO.5. UNIT. Specification of the above Unit is revised as follows:- Cylinder LOP.E.100861-LeC.3306. Existing E.100871 Cylinder Head modified to E.100931 to suit strengthened exhaust Valves. 6-New E.100926 exhaust guides fitted 27.3.33. Valves & Fittings LOP.E.100204-LeC.3306. Strengthened exhaust Valves E.100928 fitted replacing E.100087. 6-New E.100927 bottom washers. 6-New E.100929 Valve Packings-27.3.33. Pistons LOP.E.100158. Hs.{Lord Ernest Hives - Chair}945 Scraper rings - .015 Chamfer. Hs.{Lord Ernest Hives - Chair}949 Gas rings-next above Scraper rings - fitted 25.4.33. Camshaft LOP.E.100112. Hs.{Lord Ernest Hives - Chair}970 Camshaft 110°-fitted-replacing Camshaft E.100863-107°. 25.4.33. RHC{R. H. Coverley - Production Engineer}/WSC.{W. S. Cassel} | ||