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).
Constant speed throttle curve graph comparing S.U. and Kestrel VI carburetters on a Kestrel VI engine.

Identifier  ExFiles\Box 31\5\  Scan286
Date  10th December 1934
  
CURVE 4
S.U. CARBURETTER
KESTREL VI ENGINE
CONSTANT SPEED THROTTLE CURVE FROM FULL THROTTLE COMPARED
WITH KESTREL VI CARB. JETS SET IN BOTH CASES AT .540 PTS/HP/HR AT
FULL THROTTLE. THE CURVE SHEWS THAT IF THE JETS OF THE S.U. CARB. ARE
SET AT THE RATED BOOST POSITION 550 B.H.P. TO .520 PTS/HP/HR. (W.M.M.P.)
THE MIXTURE WEAKENS OFF AS THE THROTTLE OPENING IS INCREASED,
TO MAINTAIN RATED BOOST ON A CLIMB, TO FULL THROTTLE HEIGHT.

AXIS LABELS:
Y-AXIS: SPECIFIC CONSUMPTION PTS/HP/HR
X-AXIS: B.H.P
TOP-AXIS: THROTTLE, FULL

CURVE LABELS:
S.U. CARB.
S.U. CARB SET AT RATED BOOST
KESTREL VI CARB.
GROUND LEVEL SETTING FOR RATED BOOST

REFERENCE & DATE:
G.H.F. 10-12-34
3-1-14
  
  


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