Textron Cessna 172R User Manual

SECTION
7
AIRPLANE
&
SYSTEMS
DESCRIPTION
CESSNA
MODEL
172R
AIRSPEED
INDICATOR
The
airspeed
indicator is calibrated
in
knots.
It
incorporates
a
true
airspeed
window
which
allows
true
airspeed
to
be
read
off
the
face of
the
dial.
In
addition,
the
indicator
incorporates
a
window
at
the twelve
o’clock
position.
The window
displays
true
airspeed,
and
the
window
at
the twelve o’clock
position
displays
pressure
altitude
overlayed
with
a
temperature
scale.
Limitation and
range
markings
(in
KIAS)
include
the white
arc
(33
to
85
knots),
green
arc
(44
to
129
knots),
yellow
arc
(129
to
163
knots),
and
a
red line
(163 knots).
To
find
true
airspeed,
first
determine
pressure
altitude
and
outside
air
temperature.
Using
this
data,
rotate
the lower
left
knob
until
pressure
altitude
aligns
with
outside air
temperature
in
the
twelve
o’clock
window. True
airspeed
(corrected
for
pressure
and
temperature)
can
now
be read
in
the
lower window.
VERTICAL
SPEED
INDICATOR
The vertical
speed
indicator
depicts
airplane
rate
of
climb
or
descent
in
feet
per
minute. The
pointer
is
actuated
by
atmospheric
pressure
changes resulting
from
changes
of
altitude
as
supplied
by
the static
source.
7-42
Dec
2/96
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Textron Cessna 172R Specifications

General

Brand	Textron
Model	Cessna 172R
Category	Aircrafts
Language	English