Propeller; Fuel System; Fuel Cells - Beechcraft Debonair 35-33 Pilot Operating Handbook

BEECHCRAFT
Debonair33
SectionVll
Systems Description
PROPELLER
lnstalled as standard equipment on the Debonair is a
Hartzell constant speed, variable pitch, 84-inch diameter
propeller with two aluminum alloy blades. The pitch
setting at 33 inch station is 11 ° low and not under 26°
high pitch.
Propeller rpm is controlled by a Hartzell governor wh ich
regulates hydraulic oil pressure to the blades. A push-pull
knob on the control console allows the pilot to select the
governor's rpm range.
lf oil pressure is lost, the propeller will go to the full high
rpm position. This is because propeller low rpm is obtained
by governor boosted engine oil pressure working against
the centrifugal twisting moment of the blades.
FUEL SYSTEM
The airplane is designed for operation on 80/87 grade (red)
aviation gasoline. In the event this grade is not available
only a higher rated fuel shall be used.
CAUTION
Before refueling, make certain the airplane and
fuel dispensing unit are properly grounded.
Failure to do so creates a fire hazard.
FUEL CELLS
Either the 44-gallon usable (50-gallon capacity) standard
system or the 63-gallon usable (70-gallon capacity) op-
tional system is available. The standard system consists of
April 1982
7-19