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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).
Progress report on cylinder head investigation, research, and development for various engines.

Identifier  ExFiles\Box 30\4\  Scan161
Date  30th April 1934 guessed
  
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ITEM. DESIGN POSITION.
----------------------------------------------------------------------
CYLINDER HEAD INVESTIGATION AND SINGLE CYLINDER
RESEARCH.
----------------------------------------------------------------------

Ramp Cylinder head for single (3" bore) for Completed.
Straight '8' engine.

Cylinder and fittings - 3" bore Straight '8' Completed.
engine - Single Cyl.Test Unit.

Modification to ramp head - 3.25" x 4.5"Single Completed.
Cyl.Unit.

Investigation of separately sprung valve push rod. In hand.

Modified valves for ramp head - 3.25" x 4.5" Completed.
Single Cyl.Unit.

Modification to ramp head - Kestrel Single Cyl:Unit. Completed.


R.R. 'A' Engine.
-----------------------

Cylinder head. - 4 valve ramp type. Nearing completion.

Crankcase - As P.V.G. Nearing completion.

Special camshaft drive to suit 4 valve In hand.
ramp head.

Alternative cylinder construction for ramp head. In hand.
  
  


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