
MOONEY
SECTION I
M2OR
GENERAL
ENGINE CONTROLS & INSTRUMENTS TERMINOLOGY
Propeller
The control used to select engine speed.
Control
Throttle
The control used to select engine power by controlling MP.
Control
Mixture
Provides a mechanical linkage to the fuel injector mixture control to
Control
control the size of the fuel feed aperture, and therefore the air/fuel
mixture. It is the primary method to shut the engine down.
CHT Gauge
Cylinder head temperature indicator used to determine that engine
operating temperature is within manufacturers specifications.
Tachometer
An instrument that indicates rotational speed of the engine.
The speed is shown as propeller revolutions per minute (RPM).
Propeller
The device that regulates RPM of the engine/propeller
by
Governor
increasing or decreasing the propeller pitch, through a pitch
change mechanism in the propeller hub.
METEOROLOGICAL TERMINOLOGY
AGL
Above ground level.
Density
Attitude as determined by pressure altitude and existing ambient
Altitude
temperature. In standard atmosphere (ISA) density and pressure
altitude are equal. For a given pressure altitude, the higher the
the temperature, the higher the density altitude.
Indicated
The altitude actually read from an altimeter when, and only when
Altitude
barometric subscale (Kollsman window) has been set to
Station Pressure.
ISA
INTERNATIONAL STANDARD ATMOSPHERE assumes that
(1) The air is a dry perfect gas; (2) The temperature at sea level is
15 degrees Celsius (59
°
F); (3) The pressure at sea level is 29.92
inches Hg (1013.2 mb); (4) The temperature gradient from sea level
to the altitude at which the temperature
is
-56.5°
C (-69.7
°
F) is
-0.00198
°
C (-0.003564
°
F) per foot.
OAT
OUTSIDE AIR TEMPERATURE - The free air static temperature,
obtained either from in-flight temperature indications or ground
meteorological sources. It is expressed in
°
C.
Pressure
The indicated attitude when Kollsman window is set to 29.92 In. Hg.
Altitude
or 1013.2 MB. In this handbook, altimeter instrument errors are
assumed to be zero.
Station
Actual atmospheric pressure at field elevation.
Pressure
WEIGHT AND BALANCE TERMINOLOGY
Arm
The horizontal distance from the reference datum to the center of
gravity (C.G.) of an item.
Basic
The actual weight of the airplane and includes all operating
Empty
equipment (including optional equipment) that has a fixed
Weight
location and is actually installed in the aircraft.
It includes the weight of unusable fuel and full oil.
Center of
The point at which an airplane would balance if suspended.
Gravity
Its distance from the reference datum is found by dividing the
(C.G.)
total moment by the total weight of the airplane.
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