Rolls-Royce Archives
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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.
  
  


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