Specification revision for the Peregrine No. 2 unit, detailing changes to engine components.
| Identifier | ExFiles\Box 169\4\ img116 | |
| Date | 4th October 1932 | |
| 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} 6/AP. 4.10.32 PEREGRINEExperimental Bentley car never produced / Aero Engine No. 2 UNIT. Specification of the above unit is revised as follows:- PASSED TO TEST. 3.10.32. Previous Specification. Revised Specification. Pistons LOP E-100158. E-100035 Pistons Removed. Pistons LOP E-100158 LeC3138 E-100525 Pistons to the above LeC. ie-skirt portion more flexible and thickness of the crown reduced. E-100036 Piston Rings- LOP. E-100037 " " - Scraper. Cylinder LOP E-100082. E-100520 Cylinder Head. E-100062 Rocker Cover. E-100121 Sleeves. Removed. Cylinder LOP E-100681 LeC 3159 6.1 Comp Ratio. E-100578 Cylinder Head - This Head has no Oil Return Passage to C/case as shown on LeC 3159, and is not bossed to suit Ignition Wiring, Coil and Fan Adjustment to LeC 3180, as shown on latest Drawing. E-100585 Rocker Cover. E-100575 Sleeves. Valves & Fittings LOP E-100204. E-10017 Pedistals. E-10015 Rocker Shaft. Removed Valves & Fittings LOP E-100204. LeC 3159. The following new parts fitted incorporating LeC 3159. E-100581/2/3Rocker Shaft Pedistals. E-100584 Rocker Shaft. Crankshaft. EX.8715/6 Balance Weights EX.8739 Studs. Removed. Crankshaft. Existing 2.250 dia. Journal Crankshaft EX.8704 fitted with smaller Balance Weights. EX.9187/8 Balance Weights. EX.9189. Studs. | ||
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).