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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).
Performance characteristics chart for a Wright Aeronautical Corporation GV-1570-D Conqueror engine at full throttle.

Identifier  ExFiles\Box 173\3\  img216
Date  23th February 1932
  
WRIGHT AERONAUTICAL CORPORATION
Curve 912
GV-1570-D 6.2:1 C.R. - CONQUEROR ENGINE NO. 25006 - PERFORMANCE CHARACTERISTICS AT FULL THROTTLES. FEBRUARY 9 and 10, 1932.

Left Y-Axis: M.E.P. Lbs./Sq. In.
Top Right Y-Axis: Man. Pressure Lbs./Sq. In.
Bottom Right Y-Axis: Horsepower
Bottom Left Y-Axis: Specific Fuel Consumption Lbs./B.H.P. Hour
X-Axis: Crankshaft R.P.M.

Chart Data Labels:
Manifold Pressure
Corr. B.M.E.P.
Obs. B.M.E.P.
Corr. Brake Horsepower
Obs. Brake Horsepower
Corr. Prop. Horsepower 29.92" Hg. and 60°F.{Mr Friese}
Obs. Prop. Horsepower
Prop. Load - Spec. Fuel Cons. - H.S.
Brake Load - Spec. Fuel Cons. - H.S.

Valve Timing:
Cyl. 6 R H
In. O.{Mr Oldham} - 1 1/2° B.T.C.
In. C. - 51 1/2° A.B.C.
Ex. O.{Mr Oldham} - 41 1/2° B.B.C.
Ex. C. - 14 1/2° A.T.C.

Magneto Timing:
36° and 38°
Ex. and Int.

Electric Dynamometer
F.T. Prop.
Curve No. 912
Obs. Barom. 30.05 29.79
Wet Bulb 40 43
Dry Bulb 53 42
Carb. Air 57 54
Fuel: Stanavo - 80 Octane

Oil Outlet 250-268 242-260
Prestone Outlet 250 250

NA{Mr Nadin}-Y-60 Carb. Setting
Venturi - 2-1/8
M.M.J. - 39
M.A.B. - 40

Bottom Left Corner: 2/23/32
Bottom Right Corner: Page 26
  
  


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