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 detailing the status of single cylinder and general research projects.
| Identifier | ExFiles\Box 30\3\ Scan035 | |
| Date | 17th December 1934 guessed | |
| - 7 - ITEM. DESIGN POSITION. SINGLE CYLINDER AND GENERAL RESEARCH. 12 cyl. 2 stroke sleeve valve engine investigation - Pistons. Completed. -do- Preliminary Cyl.Block. Completed. Dynamo to provide battery ignition for aero engines. In hand. PV.XII Single Cyl. Unit - Modified piston bedding on the lands. Completed. Aero Universal Single Cyl. Unit - Addition of drain to cyl. gland. Completed. Aero Universal Single Cyl. Unit - Preliminary arrgt: of P.V.12 ramp head. Completed. Aero Universal Single Cyl.Unit - Preliminary arrgt: of 'R' engine cylinder. Completed. Port dimensions ExE Engine (4.25" bore). Completed. 3¾ x 4¾ Single Cyl. Unit - 9:1 Compression ratio close centres cylinder head. Completed. Port area diagram EXE Engine (4.25" bore). Completed. Aero Universal Single Cyl. Unit - Modified dowelling of cylinder block to crankcase. Completed. Stressing of bearing testing rig. Crankcase. | ||