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SECTION
III
THE
PIPER CHEROKEE
GROUND
CHECK
Check
the
magnetos
at
2o0o RPM
by
switching
from
Both to Right
then
back
to
Both before
switching
to
Left. Differential
drop
should
not
exceed
50
RPM
while
the
total
drop on either
magneto should
not
exceed 175
RPM.
Check vacuum
gauge,
indicator
should read
5"
Hg
t.1"
Hg
at
2oo0
RPM.
Check
both
the
oil
temperature and
pr6sure. Thc
temperature may
be
low
for
some
time
if
the
engine
isbeingrun
forthefirst
timeof
the
day,
but
as
long
as
the
pressure is
within
limits
the
engine
is
ready
for
take-off.
Carburctor
heat
should
also
be checked
prior
to take'off to
be sure
that
the control
is operating
properly
and
to
clcar any icc which
may
have
formed
during
taxiing. Avoid
prolonged ground operation
with
carburetor heat ON
as
the
air
is
unfiltered.
Mixture
should
be
set
full
rich,
except
a
minimum
amornt
of
leaning
is
permitted
for
smooth
enginc operation when
taking
off
at
high elevation.
TAKE.OFF
Just before
take-off
the
following
items should
be
checkcd:
l.
Controls
free
2.
Flaps
"UP"
3.
Tab
set
4.
Mixture
"RICH"
5.
Carburetor heat
"OFF"
6.
Fucl on
proper
tank
The take-off
technique is conventional
for
the
Cherokee.
The
tab
should
be set
slighdy
aft of
neutrd,
with
the exect setting
determined
by
the loading
of
the aircraft.
Allow
the
airplane
to
accelerate
to
50
to
60
miles
per hour, then
ease
back
on
the
wheel enough
to let
the
airplane
fly
itself
off
the
ground.
Premature raising
of
the
nose,
or
raising
it
to
an
excessive
angle,
will
result
in
a delayed
take-off, After
take-off
let the
aircraft
accelerate
to
the
desired
climb
specd
by
lowering the
nose
slightly.
7.
Elecuic fuel pump
"ON"
8.
Engine
gauges
normal
9.
Dcor
latched
lo.
Altimeter
set
11.
Fasten
belts/harness
16
770527
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