MOONEY
M20TN - MODEL TYPE-S
SECTION VII
AIRPLANE AND SYSTEM DESCRIPTION
7 -- 8
AIRPLANE FLIGHT MANUAL
ORIGINAL ISSUE -- 04-02-2008
FLIGHT PANEL & INSTRUMENTS
SWITCHES & CONTROLS
NOTE:
The illustration depicts a standard panel configuration. The location of instru-
ments, switches, and avionics may be relocated in each aircraft, dependant upon
the optional equipment selected by the customer and available panel space.
1. AIRSPEED INDICATOR
The airspeed indicator registers air speed in knots. The air pressure difference between the pitot
tube and static ports on each side of the tailcone operates the air speed indicator.
2. ATTITUDE INDICATOR
Varies with installed equipment.
3. ALTIMETER
The altimeter operates by absolute pressure and converts barometric pressure to altitude
reading in feet above mean sea level. The altimeter has a fixed dial with three pointers to indicate
hundreds, thousands and tens--of--thousands of feet. Barometric pressure is sensed through
the static ports. A knob adjusts a movable dial, a small window on the face of the main dial, to
indicate local barometric pressure and to correct the altimeter reading for prevailing conditions.
4. TURN INDICATOR
The turn coordinator operates from an electric power source. The turn coordinator is indepen-
dent of the flight reference gyros. The turn coordinator displays variation in roll and yaw to the
pilot by means of a damped miniature aircraft silhouette display -- this provides the pilot with es-
sential information to execute a “proper turn”.
5. ANNUNCIATOR PANEL
See description elsewhere in this SECTION.
6. MAGNETIC COMPASS
Magnetic compass dial is graduated in five--degree increments and is encased in liquid-- filled
glass and metal case. It is equipped with compensating magnets, adjustable from front of case.
Access to compass light and compensating magnets is provided by pivoted covers. No mainte-
nance is required on magnetic compass except an occasional check on a compass rose, adjust-
ment of the compensation screws (if necessary) and replacement of the lamp.
7. HOUR METER (NOT SHOWN)
Hour meter - located on baggage compartment bulkhead indicates actual flight time and is trig-
gered by the airspeed switch. Location may vary depending on installed systems.
8. MASTER WARNING LIGHT
When any RED warning light on the panel shows that a system or component is malfunctioning,
this MASTER WARN light illuminates in approximately 15-20 seconds after any annunciator
light begins to show a malfunction. Pilot should identify the source system warning light on the
annunciator, then PUSH the MASTER WARN light (it contains a PUSH switch under the light).
MASTER WARN light will extinguish for approximately 2 minutes or until the next system mal-
function warning light on the annunciator illuminates. Repair inoperable system prior to next
flight.
