Cessna TURBO CENTURION T210M 1978 Pilot Operating Handbook page 43

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CESSNA
MODEL T210M
SECTION 3
EMERGENCY PROCEDURES
STATIC SOURCE BLOCKED
If
erroneous readings of the static source instruments (airspeed,
altimeter and rate-of-climb) are suspected, the alternate static source
valve should be pulled on, thereby supplying static pressure to these
instruments from the cabin.
Cabin pressures will be affected by open ventilators or windows and
varying airspeeds, and this will affect the readings.
With windows closed, maximum airspeed and altimeter variation from
normal occurs with the vents closed and reaches
8
knots and 150 feet
respectively at maximum cruise (instruments read high). During
approach with vents closed, typical variations are 7 knots and 70 feet
respectively (reads high). Opening the vents tends to reduce these varia-
tions by one third.
With windows open, variations up to 15 knots and 100 feet occur near
stall (reads low) and up to 15 knots and 225 feet at maximum cruise (reads
high). During approach, typical variations are 4 knots and 40 feet (reads
high).
With the alternate static source on, fly the airplane at airspeeds and
altitudes which compensate for the variations from normal indications.
For more exact airspeed correction, refer to the alternate static source
airspeed calibration table in Section 5, appropriate to the vent/window
configuration.
SPINS
Intentional spins are prohibited in this airplane. Should an inadvert-
ent spin occur, the following recovery technique may be used:
1.
RETARD THROTTLE TO IDLE POSITION.
2. PLACE AILERONS IN NEUTRAL POSITION.
3.
APPLY AND HOLD FULL RUDDER OPPOSITE TO THE DIREC-
TION OF ROTATION.
4. JUST
AFTER
THE RUDDER REACHES THE STOP, MOVE THE
CONTROL WHEEL BRISKLY FORWARD FAR ENOUGH TO
BREAK THE ST ALL. Full down elevator may be required at aft
center of gravity loadings to assure optimum recoveries.
5. HOLD THESE CONTROL INPUTS UNTIL ROTATION STOPS.
Premature relaxation of the control inputs may extend the recov-
ery.
6.
AS ROTATION STOPS, NEUTRALIZE RUDDER, AND MAKE A
SMOOTH RECOVERY FROM THE RESULTING DIV~.
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