Cessna 402C - Page 95

Gc~ 402C
MODEL
STALL
(AMPLIFIED PROCEDURES)
SECTION 4
NORMAL PROCEDURES
The stall characteristics of the airplane are conventional. Aural
warning is provided by the stall warning horn between 5 and 10 KIAS above
the stall in all configurations. The stall is also preceded by a mild
aerodynamic buffet which increases in intensity as the stall is approached.
The power-on stal' occurs at a very steep pitch angle with or without
flaps. It is difficult to inadvertently stall the airplane during nonnal
maneuver; n9.
MANEUVERING FLIGHT
No aerobatic maneuvers, including spins, are approved in this airplane;
however, the airplane is conventional in all respects through the maneuver-
ing range encountered in normal flight.
PROCEDURES FOR PRACTICE DEMONSTRATION OF
VMCA
One engine inoperative procedures should be practiced in anticipation of
an emergency. This practice should be conducted at a safe altitude (5000
feet AGL)~ with full power operation on both engines, and should be started
at a safe speed of at least 105 KIAS. As recovery ability is gained with
practice, the starting speed' may be lowered in small increments until the
feel of the airplane in emergency conditions is well known. It should be
noted
that as the speed is reduced. directional control becomes more diffi-
cult. Emphasis should be placed on stopping the initial large yaw angles
by the IMMEDIATE application of rudder supplemented by banking slightly
away from the yaw. Practice should be continued until: (1) an instinctive
corrective reaction is developed and the corrective procedure is automatic
and, (2) airspeed~ altitude. and heading can be maintained easily whiTe the
airplane is being prepared for a climb. In order to simulate an engine
failure, set both engines at full power operation; then at a chosen speed,
pUll
the throttle control of one engine to idle, and proceed with onel
engine
inoperative emergency procedures. Simulated one engine inoperative
flight characteristics can be practiced by setting propeller RPM to
simulate a critical engine inoperative condition as shown in Figure 4-3.
I. Wing Flaps - UP.
2. Landing Gear - UP.
3. Airspeed - VSSE (9S KIAS) or above.
4. Inoperative Engine - IDLE POWER.
5. Dperative Engine - 2700 RPM and FULL THROTTLE.
6. Airspeed - DECREASE at approximately I knot per second until VMCA
(red radial) or stall warning, whichever occurs first,
is Obtained.
VSSE is used in training and is not a limitation. It is recomme~ded,
however, that except for training, demonstrations, takeoffs and land1ngs,
this airplane should not be flown at a speed slower than VSSE.
Under no circumstances should a VMC
A
demonstration
be attempted at a
speed slower than
the red radial on the airspeed indicator.
I November 1979
Revision 4 - 1 December 1983
4-25