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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 various Vulture, P.V.XII, and Merlin II engine components.

Identifier  ExFiles\Box 30\3\  Scan049
Date  7th January 1935 guessed
  
ITEM. (10) DESIGN POSITION.

VULTURE ENGINE.

Reduction gear and front end auxiliaries. Completed.
Supercharger gearing - two speed. Put aside.
Lower half crankcase. Put aside.
Crankcase showing relief valve passages. Put aside.
Camshaft drive. Put aside.
Rear half supercharger casing. Completed.
Mod. to magneto drive. Put aside.

P.V.XII 'B' ENGINE (RAMP CYL. HEAD).

Alternative construction for cylinder liner bottom gland unit. Completed.

MERLIN II ENGINE.

Investigation of alternative cylinder constructions. Completed.
Layout of pistons and connecting rods. Completed.
Cylinder head and valve gear. Completed.
Rear end of crankcase with camshaft drives. In hand.
  
  


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