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 the components fitted.
| Identifier | ExFiles\Box 54\4\ Scan124 | |
| Date | 18th November 1933 | |
| r 4659. To Hs. {Lord Ernest Hives - Chair} from RHC {R. H. Coverley - Production Engineer} /WSC. {W. S. Cassel} c. Hs {Lord Ernest Hives - Chair} /Yng. [crossed out] c. Mr. Jaques.(A.I.D) [crossed out] c. Hs {Lord Ernest Hives - Chair} /Tsn. [crossed out] RHC {R. H. Coverley - Production Engineer} /WSC. {W. S. Cassel} 6/AP.18.11.33. 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} 1/AP.4.11.33. is revised as follows:- All details which were removed from this Unit on the 7.11.33. and refitted to Kestrel FS. {F. Steele} 6 Cyl. No.2. as shown in specification RHC {R. H. Coverley - Production Engineer} /WSC. {W. S. Cassel} 10/AP.9.11.33. have been removed from Unit No.2. and again fitted to No.1. PASSED TO TEST 16.11.33. Pistons 6-1 Ratio (H.D.Y) E.40837 Pistons - no oil holes in Gudgeon Pin Bores ( ground to V.1372) Valves & Fittings LOP E.40218. Complete to the above LOP. including:- 12-Ex.12760 Exhaust Valves-solid stems- Tulip head type - in KE.965 steel-with stellite tips. 45o increased width seats. (Not salt cooled) 12-E.28651/1 Inlet Valves -S/SLV. Cylinders LOP.E.40795 ("A" side) Spring Loaded Gland type. 1-E.39720 Cyl.Block "A" side modified to drgs.E.41509 & Ex.12629 including:- Hs. {Lord Ernest Hives - Chair} 1187 Exhaust Valve Seats-N.M.C. (small bore type-thicker flange) E.42031 Inlet Seats-N.M.C. E.40401 Inlet Guide -BL.3. E.41389 Exhaust Guide-BZ/PC (.437 dia. bore) continued. | ||