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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).
Measurements of Spectre cylinder liners detached from the cylinder block, comparing Centri-cast and Austenitic steel types.

Identifier  ExFiles\Box 93\4\  scan0014
Date  12th February 1935
  
SPECTRECodename for Phantom III CYLINDER LINERS MEASURED - WHILST DETACHED FROM CYLINDER BLOCK

(BLUE FIGS. DENOTE DIMENSIONS TAKEN WITH LINER COLD)
(RED FIGS. DENOTE DIMENSIONS TAKEN WITH LINER IN WATER AT 90° C)

SPECTRECodename for Phantom III CENTRI-CAST LINER
DIAMETERS 'AA{D. Abbot-Anderson}'
-.0017
+.0005
-.002
-.0002
-.002
+.0003

DIAMETERS 'BB'
-.0035
-.0015
-.0022
-.0005
-.0015
+.0005

SPECTRECodename for Phantom III LINER IN AUSTENITIC STEEL
DIAMETERS 'AA{D. Abbot-Anderson}'
-.008
-.001
-.0082
-.001
-.0028
-.0005

DIAMETERS 'BB'
-.0034
-.0013
-.0033
-.0012
-.0028
-.0005

VERTICAL DIMENSIONS:
.750
3.500
5.800

JIG SIZE NOTE:
+ ABOVE JIG SIZE } 3.950"
- BELOW JIG SIZE

RUBBER GLAND SECTION

AVERAGE EXPANSION = .002"

STAMP:
ROLLS-ROYCE. LTD
FEB 13 1935
DERBY.
  
  


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