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).
Blueprint graph showing engine power output curves for a C10 unit for a 19.G.IV engine.

Identifier  ExFiles\Box 179\2\  img046
Date  1st December 1931
  
R.M. 57
POWER OUTPUT C 10 UNIT FOR 19 G IV
① CAMSHAFT E.57177 110 S° PITSONS E.57122
COMPRESSION RATIO 5.7 - 1
1.5 DIA
1 1/8 INSIDE DIA
P II SHAFT TYPE
CAMSHAFT/VALVE TIMING DIAGRAM:
26°
.020 CLOSE
Ex
IN
35°
45 S

GRAPH DATA:
Y-AXIS: B.H.P (Brake Horsepower)
X-AXIS: R.P.M (Revolutions Per Minute)

CURVE LEGEND:
①: Corresponds to Camshaft E.57177, Pitsons E.57122, Compression Ratio 5.7-1
②: CHINA UNIT 5-1 C/R
1 7/8" LARGER R.R. CARB.
110° SHAFT. STD. 25 H.P Ex.
SYSTEM TO E.55794

S 12 . 31
  
  


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