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 Kestrel-FS-6 Cylinder Unit No.2, detailing changes between previous and revised parts.
| Identifier | ExFiles\Box 54\4\ Scan169 | |
| Date | 16th November 1933 | |
| To Hs. {Lord Ernest Hives - Chair} from RHC {R. H. Coverley - Production Engineer} /WSC. {W. S. Cassel} 84659. RHC {R. H. Coverley - Production Engineer} /WSO4/LS.16.11.33. c/c Hs {Lord Ernest Hives - Chair} /Ryc. 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} 10/AP.9.11.33. is revised as follows.- PASSED TO TEST 15.11.33. Previous Specification. Cylinders LOP.E.40795. 12-E.41389 Exhaust Valve Guides BZ/PC.(.497 bore.) Removed. Valves & Fittings LOP. E.40218. 12-EX.12548 Salt Cooled Exhaust Valves-Tulip Head Type-in KE.965-Steel-Un-Stellited-45° increased width of seats. Removed. Revised Specification. Cylinders-LOP.E.40795. The following New parts fitted to suit New Valves. 12-E.41389 Exhaust Valve Guides-BZ/PC.(.437' bore.) Remaining parts to complete are existing. Valves & Fittings LOP.E.40218. The following New parts fitted.- 12-EX.12760 Exhaust Valves-Solid Stems-Tulip Head Type-in KE.965 Steel-with Stellite Tips-(Not Sodoum Cooled). 12-E.38328 Top Washers. 12-E.28070 Valve Wedges. Remaining parts to complete are existing. RHC {R. H. Coverley - Production Engineer} /WSC. {W. S. Cassel} | ||