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 report on the P.V.12 and Merlin II engines.
| Identifier | ExFiles\Box 30\3\ Scan038 | |
| Date | 7th January 1935 guessed | |
| - 10 - ITEM DESIGN POSITION. P.V.12. 'B' ENGINE (Ramp Cyl. Head) - continued:- Separated scavenge pumps. Completed. Adaptation of Hamilton V.P. airscrew hub. Completed. Mods. to relief valve and crankcase to suit In hand. Hamilton V.P. hub. P.V.12. ENGINE. 5.4 x 6 Separated scavenge pumps - permanent scheme. Completed. MERLIN II ENGINE. 5.4 x 6 Investigation of alternative cylinder constructions. In hand. Layout of pistons and connecting rods. In hand. Cylinder head and valve gear. In hand. Rear end of crankcase with auxiliary drives. In hand. | ||