MOONEY
M20TN
SECTION IV
NORMAL PROCEDURES
4--16
AIRPLANE FLIGHT MANUAL
ORIGINAL ISSUE -- 12--22--2006
-- WARNING--
Proper oxygen flow is critical to pilot/passenger safety, especially at altitudes
above 20,000 ft. MSL. It is important to closely monitor the face mask hose flow
indicator to ensure oxygen is constantly flowing to the mask. A GREEN indica-
tion on the flow indicator denotes proper oxygen flow. A lways place the flow indi-
cator in a position where it is in the normal scan area of the cockpit. Refer to
duration chart (Fig. 7-12 & Fig. 7-13, SECTION VII) for safe operational quantities.
DESCENT
-- C A U T I O N --
Above 12,000 ft the minimum manifold pressure is 15 in. Hg and the minimum
RPM is 2,200. Do not pull the throttle back to idle without leaning mixture appro-
priately above 12,000 ft. The lack of manifold pressure at altitude without leaning
will cause an over- rich condition. This condition may cause the engine to quit
above 18,000 ft. This condition may also cause the engine to quit when the
throttle is suddenly increased. If it does quit, it is possible to re- start the engine
at any altitude by leaning the mixture.
NOTE:
Avoid extended descents at low manifold pressure setting, as engine can cool
excessively and may not accelerate satisfactorily when power is re-applied.
NORMAL DESCENT -- GEAR UP
Seats, Seat Belts/Shoulder Harness ADJUST AND SECURE...........................
Wing Flaps UP...................................................................
Landing Gear UP.................................................................
Power Settings AS REQUIRED.....................................................
Mixture MOVE TO RICHER SETTING AS REQUIRED................................
LOW Boost Pump OFF Below 18,000 Ft.............................................
Airspeed AS DESIRED (194 KIAS max.)
.............................................
Rudder Trim AS DESIRED.........................................................
NOTE:
Refer to descent planning charts in Section V for recommended power settings.
-- C A U T I O N --
DO NOT fly in YELLOW BAR speed range unless the air is smooth.
NORMAL DESCENT -- GEAR DOWN
Seats, Seat Belts/Shoulder Harness ADJUST AND SECURE...........................
Wing Flaps UP...................................................................
Power Settings 2400 RPM and approximately 25 inches Hg.............................
Airspeed 140 KIAS or less.........................................................
Landing Gear DOWN..............................................................
Airspeed 164 KIAS or less
.........................................................
Power Settings AS REQUIRED.....................................................
Mixture AS REQUIRED...........................................................
LOW Boost Pump OFF Below 18,000 Ft.............................................
Rudder Trim AS DESIRED.........................................................
NOTE:
Using landing gear as a descent aid will result in a steeper descent rate for a giv-
en power setting and airspeed. Alternatively, for a fixed descent rate more power
will be required. This can be helpful for maintaining minimum oil a nd cylinder
head temperatures. Plan for additional fuel consumption accordingly.
Revision A -- 12-11-07
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