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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 status report for items on the P.V.XII 'B' and standard engines.

Identifier  ExFiles\Box 30\3\  Scan027
Date  17th December 1934 guessed
  
(9)

ITEM. DESIGN POSITION.
----------------------------------------------------------------

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

Variable timing gun gear. In hand.

Extra richening device for "take off". Completed.

Separated scavenge pumps. In hand.

Adaptation of Hamilton V.P. airscrew. In hand.



P.V.XII ENGINE.

Separated scavenge pumps fitted to existing lower half
crankcase. Completed.

Top water outlet pipes. Completed.

Extra richening device for "take off". Completed.

Separated scavenge pumps - permanent scheme. In hand.
  
  


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