Rolls-Royce Archives
         « Prev  Box Series  Next »        

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).
Graph showing power variation and induction depression with different choke sizes for a Phantom engine.

Identifier  ExFiles\Box 66a\2\  scan0197
Date  26th April 1928 guessed
  
POWER VARIATION WITH SIZE OF CHOKE, (PHANTOM).
ENGINE No A.U.25.
WEIR TYPE INDN PIPE (SCH 980).
STD. TWIN EXHAUST MANIFOLDS.
VERTICAL CLAUDEL-HOBSON CARBURETTOR.
COMPRESSION RATIO = 4.25.
STANDARD CAMSHAFT.
TEST BED SILENCER.
CONTINUOUS LINE CURVES:-
CHOKE = 1.530" DIA.
AREA AT RESTRICTION = 1.532 SQ.INS.
DOTTED LINE CURVES:-
CHOKE = 1.800" DIA.
AREA AT RESTRICTION = 2.238 SQ.INS.
RAKE HORSE POWER.
R.P.M. OF ENGINE.
INDUCTION DEPRESSION (INS. MERCURY).
B.H.P.
STD. CARB.
DEPRESSION AT CHOKE
DEPRESSION IN INDUCTION PIPE.
  
  


Copyright Sustain 2025, All Rights Reserved.    whatever is rightly done, however humble, is noble
An unhandled error has occurred. Reload 🗙