Specification revision for a Kestrel FS.6 Cylinder No.1, detailing changes to the piston.
| Identifier | ExFiles\Box 54\4\ Scan136 | |
| Date | 1st February 1934 | |
| To Hs {Lord Ernest Hives - Chair} from RHC {R. H. Coverley - Production Engineer} /WSC. {W. S. Cassel} c. Hs {Lord Ernest Hives - Chair} /Yng. c. Mr. Jaques. (A.I.D) c. Rg {Mr Rowledge} /Tsn. r 659. RHC {R. H. Coverley - Production Engineer} /WSC. {W. S. Cassel} 10/AP.1.2.34. .KESTREL(Aero Engine) FS. {F. Steele} 6 CYLINDER No.1. Specification of the above Engine is revised as follows:- PASSED TO TEST 13.1.34. Previous Specification. Pistons LOP.E.36091 (6-1 Ratio) H.D.Y. 1-E.40837 Piston - no oil holes in Gud. Pin bore - ground to Drg. V.1372. Removed. Revised Specification. Pistons LOP.E.36091 (6-1 Ratio) H.D.Y. The following new replacement part fitted in No.4. Bore:- 1-E.40837 Piston - no oil holes in Gudgeon pin bore- Ground to Drg. V.1372. RHC {R. H. Coverley - Production Engineer} /WSC. {W. S. Cassel} | ||
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).