Specification revision for the Kestrel FS 6 Cylinder No.1 engine.
| Identifier | ExFiles\Box 54\4\ Scan140 | |
| Date | 14th March 1934 | |
| 84659. To Hs. {Lord Ernest Hives - Chair} from RHC {R. H. Coverley - Production Engineer} /WSC. {W. S. Cassel} c. Hs {Lord Ernest Hives - Chair} /Vmg. c. Mr. Jaques.(A.I.D) c. Hs {Lord Ernest Hives - Chair} /Tsn. RHC {R. H. Coverley - Production Engineer} /WSC. {W. S. Cassel} 1/AP.14.3.34. KESTREL(Aero Engine) FS. {F. Steele} 6 CYLINDER No.1. Specification of the above Engine is revised as follows:- PASSED TO TEST 5.3.34. Previous Specification. Cylinders LOP.E.35975. 1-E.41096 Cylinder Skirt - complete. 1-E.41088 Cylinder Head - complete. 6-E.41095 Cylinder Liners-S/HC. Removed. Revised Specification. Cylinders LOP.E.41684. 1-New E.41609 "A" side Cyl. block fitted complete to the above LOP. incorporating- Hs. {Lord Ernest Hives - Chair} 1187 Exhaust Valve Seats in N.M.C. -Thin-flange type. E.42031 Inlet Valve Seats in Monel metal. Above block assembled without E.29140/1 Top liner joint rings. This alters comp. ratio from 6-1: to 6.37 to 1. 1-"B" side cylinder block re-fitted complete to stiffen unit. This block is not working. Valves & Fittings LOP.E.40218. Complete to the above LOP. "A" side only, incorporating Ex.13145 Salt Cooled Exhaust valve -Bristol type head- produced in KE.965 with stellite tips. Seats ground to 44° 30' E.28651/1 Inlet Valves -S/SLV. Removed. Valves & Fittings LOP.E.40218. New, complete to the above LOP. fitted to "A" side block only incorporating:- Hs. {Lord Ernest Hives - Chair} 1229 Salt Cooled Exhaust valve produced in KE.965-Tulip head type. E.28651/1 Inlet Valve -S/SLV. continued. | ||
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).