Textron Cessna 172R User Manual

SECTION
4
NORMAL
PROCEDURES
CESSNA
MODEL
172R
CRUISE
|
Normal
cruise is
performed
between
60%
and
80%
power.
The
engine
RPM
and
corresponding
fuel
consumption
for
various
altitudes
can
be determined
by
using
the
data
in
Section
5.
NOTE
Cruising
should be
done
at
80%
power
as
much
as
practicable
until
a
total
of
50
hours has
accumulated
or
oil
consumption
has stabilized.
Operation
at
this
higher
power
will
ensure
proper
seating
of
the
rings
and
is
applicable
to
new
engines,
and
engines
in
service
following
cylinder
replacement
or
top
overhaul
of
one or
more
cylinders.
I
The
Cruise
Performance
charts
in
Section
5
provide
the
pilot
with
detailed
information
concerning
the cruise
performance
of
the Model
172R
in
still air.
Power and
altitude,
as
well
as
winds
aloft,
have
a
strong
influence
on
the
time and
fuel
needed
to
complete
any
flight.
The
Cruise
Performance
Table,
Figure
4-3,
illustrates
the
true
airspeed
and
nautical
miles
per
gallon during
cruise
for
various
altitudes
and
percent
powers,
and
is
based
on
standard
conditions
and
zero
wind.
This table
should
be used
as a
guide,
along
with
the
available
winds
aloft
information,
to
determine
the
most
favorable
altitude
and
power
setting
for
a
given
trip.
The selection
of
cruise
altitude
on
the basis
of
the
most
favorable
wind conditions
and
the
use
of
low
power
settings
are
significant
factors
that
should
be
considered
on
every
trip
to
reduce
fuel
consumption.
In
addition
to
power
settings,
proper
leaning
techniques
also
contribute
to
greater
range
and
are
figured
into
cruise
performance
tables.
To achieve
the
recommended
lean mixture
fuel
consumption
I
figures
shown
in
Section
5,
the
mixture
should
be
leaned
using
the
exhaust
gas
temperature
(EGT)
indicator
as
noted.
NOTE
|
At
lower
power
it
may
be
necessary
to
richen the
mixture
slightly
to
obtain
smooth
operation.
4-26
Revision
7
All manuals and user guides at all-guides.com

Textron Cessna 172R Specifications

General

Brand	Textron
Model	Cessna 172R
Category	Aircrafts
Language	English