Storm windows Check closed.
Bleed air valve switches Check OPEN.
Cabin altitude Set 500 feet lower than
Cabin pressure/dump switch TEST (hold).
descending indication and, when confirmed,
release cabin pressure/dump switch from
Aircraft altitude Set to planned cruise
altitude plus 500 feet. (If this setting does
not result in a CABIN ALT indication of at
least 500 feet over takeoff field pressure
altitude, adjust as required.)
Condition levers As required.
Windshield anti-ice As required.
If windshield anti-ice is needed
prior to takeoff, use normal setting
for a minimum of 15 minutes prior
to selecting high temperature to
provide adequate preheating and
minimize effects of thermal shock.
8-38. *BEFORE TAKEOFF.
(1). Auto feather switch ARM.
(2). Bleed air valves As required.
(3). Ice & rain switches As required.
(4). Fuel panel Check fuel quantity and switch
(5). Flight and engine instruments Check for normal
(6). Cabin altitude and rate-of-climb controller Set.
(7). Annunciator panels Check (note indications).
Propeller levers HIGH RPM.
Flaps As required.
(12). Flight controls Check.
(13). Departure briefing Complete.
8-39. *LINE UP.
(1). Transponder As required.
(2). Engine autoignition switch ARM.
(4) Condition levers LOW IDLE.
Lights As required.
Mission control panel Set.
To aid in planning the takeoff and to obtain
maximum aircraft performance, make full use of the
information affecting takeoff shown in Chapter 7. The
data shown is achieved by setting brakes, setting takeoff
power, and then releasing brakes. When runway lengths
permit, the normal takeoff may be modified by starting the
takeoff after power has been stabilized at approximately
25% torque, then applying power smoothly so as to attain
full power no later than 65 KIAS. This will result in a
smoother takeoff but will significantly increase takeoff
Normal Takeoff. After LINE UP procedures have
been completed, release brakes and smoothly apply
power to within 5% of target. Power should be applied at
a rate that will produce takeoff power by 40 KIAS.
Maintain directional control with nosewheel steering,
rudder, and differential power, while maintaining wings
level with ailerons. The pilot should retain a light hold on
the power levers throughout the takeoff and be ready to
initiate ABORT procedures if required. The copilot should
insure that the AUTOFEATHER advisory lights are
illuminated (if applicable), adjust and maintain power at
the exact takeoff power settings, and monitor all engine
instruments. The pilot will rotate at the recommended
rotation speed (Vr) and establish the climb attitude (9to
16) that will attain best rate-of-climb airspeed (Vy) during
the initial climb. Rotation should be at a rate that will
allow liftoff at liftoff airspeed (V1of).
Crosswind Takeoff. Position the aileron control
into the wind at the start of the takeoff roll to maintain a
wings level attitude. Under strong crosswind conditions,
leading with upwind power at the beginning of the takeoff
roll will assist in maintaining directional control. As the
nosewheel comes off the ground, the rudder is used as
necessary to prevent turning (crabbing) into the wind.
Rotate in a positive manner to keep from side-skipping as
weight is lifted from the shock
Change 6 8-18