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).
Design position status report for Vulture and P.V.XII engines.
| Identifier | ExFiles\Box 30\4\ Scan080 | |
| Date | 8th February 1934 guessed | |
| (9) ITEM. DESIGN POSITION. VULTURE ENGINE - CONTINUED:- ============================ Supercharger gearing - two speed. In hand. Revision of cylinder head. In hand. Alternative water, oil and petrol pump drives. In hand. Supercharger casing. In hand. Compressor drive. In hand. P.V.XII ENGINE WITH RAMP CYLINDER HEAD. ======================================= Tachometer drive. Completed. Cylinder head oil drain front (Sch.II). Completed. Valves andvalve gear. Completed. Ignition wires and fittings. Completed. Piston and connecting r od - 6.5 to 1 and 6.088 to 1 comp: ratio. Completed. Gun gear on cylinder head. Completed. Variable timing gun gear. In hand. | ||