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).
Specification revision for a Kestrel FS. 6 Cylinder Unit No.1, detailing changes to the exhaust valves.
| Identifier | ExFiles\Box 54\4\ Scan128 | |
| Date | 25th November 1933 | |
| Y4659 To Hs. {Lord Ernest Hives - Chair} from RHC {R. H. Coverley - Production Engineer} /WSC. {W. S. Cassel} C. Hs {Lord Ernest Hives - Chair} /mg C. Mr. Jaques.(A.I.D) C. Hs {Lord Ernest Hives - Chair} /Man. RHC {R. H. Coverley - Production Engineer} /WSC. {W. S. Cassel} F1/AP.25.11.33. Kestrel FS. {F. Steele} 6 Cylinder Unit No.1. Specification of the above Unit issued in RHC {R. H. Coverley - Production Engineer} /WSC. {W. S. Cassel} 10/AP.25.11.33. is revised as follows:- Passed to Test 17/11.33. Previous Specification. Valves & Fitts.LOP.E.40218. Revised Specification. Valves & Fitts.LOP.E.40218. Existing Ex.12760 Exhaust valves re-machined on seats to give 44º 20' to give 40' heavy bed on outer edge. Remaining parts to complete are existing. RHC {R. H. Coverley - Production Engineer} /WSC. {W. S. Cassel} | ||