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.2, comparing previous and revised parts.
| Identifier | ExFiles\Box 54\4\ Scan175 | |
| Date | 27th November 1933 | |
| 84659. 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} 12/AP.27.11.33. KESTREL FS. {F. Steele} 6 CYLINDER UNIT NO.2. Specification of the above Unit issued in RHC {R. H. Coverley - Production Engineer} /WSC. {W. S. Cassel} 8/AP.27.11.33. is revised as follows:- PASSED TO TEST 23.11.33. Previous Specification. Valves & Fittings LOP.E.40218. 12-Ex.12750 Exhaust Valves- Solid Stems-Tulip head type produced in KE. 965. with stellite tips & 40' interference on valve seats. Removed. Pistons (7-1 Ratio) 6-E.37724 Pistons -RR.59. Alloy. Ground to Drgs. V.1372 & Ex.11140. Removed. Revised Specification. Valves & Fittings LOP.E.40218. The following new parts fitted:- 12-E.30657 Exhaust Valves- S/SLV -Tulip Head type. Remaining parts to complete are existing. Pistons (6-1 Ratio) The following new parts fitted:- 6-E.40837 Pistons ground to V.1372. Remaining parts to complete are existing. RHC {R. H. Coverley - Production Engineer} /WSC. {W. S. Cassel} | ||