MOONEY
M20TN - MODEL TYPE-S
SECTION VII
AIRPLANE AND SYSTEM DESCRIPTION
7 -- 11
AIRPLANE FLIGHT MANUAL
ORIGINAL ISSUE -- 04-02-2008
28. THROTTLE CONTROL
Push throttle control forward to increase engine power. Pull throttle aft to decrease engine pow-
er. Vernier control is optional.
29. PROPELLER CONTROL
Push propeller control forward to increase engine RPM; pull control aft to decrease engine RPM.
Control is a vernier type and fine adjustments of RPM can be obtained by turning knob clockwise
to increase RPM and counter clockwise to decrease RPM. Knob should not be turned IN any
closer than .030” to .060” to panel nut face.
30. MIXTURE CONTROL
Mixture control allows pilot to adjust the fuel--air ratio (mixture) of the engine. Push control for-
ward to enrich mixture. Pull control full aft to close idle cut off, shutting down engine. Control is a
vernier type and fine adjustments of mixture can be obtained by turning knob clockwise to enrich
mixture and counterclockwise to lean. Knob should not be turned IN any closer than .030” to
.060” to panel nut face.
31. WING FLAP SWITCH
Flap switch, on console, operates the electrically-actuated wing flaps. The flap switch incorpo-
rates a pre-select feature for TAKEOFF and FULL DOWN positions. Move switch down to first
detent position to obtain TAKE OFF flaps (10
o
). Move switch to full down position to select FULL
DOWN flaps (33
o
). When flap switch is moved UP to either TAKEOFF position or FULL UP posi-
tion the flaps will retract to the selected position.
--CAUTION--
Positioning Flap Switch to the UP position retracts the flaps completely.
32. ALTERNATE STATIC SOURCE VALVE
Pull alternate static source valve full aft to change source of static air for the altimeter, airspeed
and vertical speed indicator from outside of aircraft to cabin interior. Air speed and altimeter read-
ings are affected slightly when alternate static source is used (See Charts in SECTION V).
33. PARKING BRAKE CONTROL
Depress brake pedals and pull parking brake control to set parking brake. Push parking brake
control in to release parking brake.
34. CABIN VENT CONTROL (Fresh Air)
Pull cabin vent control aft to open valve in mixing box connected to cabin air inlet vent located on
the right side of the airplane. Optimum use of cabin vent control is described in the Cabin Envi-
ronment Section.
35. CABIN HEAT CONTROL
Pull cabin heat control to turn cabin heat on. To lower cabin temperature, cabin heat control is
pushed forward toward the OFF position. Optimum use of cabin heat control is described in the
Cabin Environment Section.
36. DEFROST CONTROL
Pull defrost control to decrease air flow to lower cabin area and increase air flow to windshield
ducts in the front of glareshield area. Optimum use of the defrost control is described in the Cabin
Environment Section.