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TRUE AIRSPEED INDICATOR
Û Û
A
true
airspeed
indicator
is
available
to
replace
the
standard
air-
speed
indicator
in your airplane.
The
true
airspeed
indicator
has a cali-
DESCRIPTION
AND
OPERATING
DETAILS
brated
rotatable
ring which
works
in
conjunction
with
the
airspeed
indi-
cator
dial in a manner
similar
to the
operation
of
a
flight
computer.
TO OBTAIN
TRUE
AIRSPEFD,
rotate
ring
until pressure
altitude
The
following
paragraphs
describe
the
systems
and
equipment
whose
is aligned
with
outside air
temperature
in degrees
Fahrenheit.
Then
function
and operation
is not obvious
when
sitting
in
the
airplane.
This
read
true
airspeed
on rotatable
ring
opposite
airspeed
needle.
section also
covers
in
somewhat
greater
detail
some
of
the
items
listed
in Check
List
form
in
Section
I
that
require
further
explanation.
NOTE
Pressure
altitude
should
not be confused
with indicated
altitude.
To obtain
pressure
altitude,
set barometric
FUEL
SYSTEM.
scale
on altimeter
to
"29.92"
and read
pressure
altitude
on altimeter.
Be
sure
to
return
altimeter
barometric
Fuel is supplied
to the
engine from
two tanks,
one in
each
wing.
With
scale
to
original
barometric
setting
after
pressure
the
fuel
selector
valve
on
"BOTH,
" the total
usable
fuel
for all
flight
con-
altitude
has been
obtained.
ditions
is
60
gallons
for
the
standard
tanks
and 79
gallons
for optional
long
range
tanks.
Fuel
from
each wing
tank
flows
by gravity
to
a selector
valve.
De
-
pending
upon
the
setting
of
the
selector
valve,
fuel
from
the
left,
right,
or both
tanks
flows
through
a fuel
strainer
and
carburetor
to the
engine
induction
system.
IMPORTANT
The
fuel selector
valve
should
be in
the
"BOTH"
position
for
take-off,
climb,
landing,
and
maneuvers
thät
involve
FUEL TANK QUICK-DRAIN VALVE KIT
prolonged
slips
or
skids.
Operation
from
either
"LEFT"
or "RIGHT"
tank
is reserved
for cruising
flight.
NOTE
Two
fuel
tank
quick-drain
valves
and a fuel sampler
cup are
available
as a
kit
to
facilitate
daily
draining
and
inspection
of
fuel
in
the
main
tanks
When
the
fuel
selector
valve
handle
is in
the
"BOTH"
for
the
presence
of water
and sediment.
The valves
replace
existing
fuel
position
in cruising
flight,
unequal
fuel
flow
from
each
tank
drain
plugs
located
at
the
lower
inboard
area
of
the
wing.
The fuel
tank
may occur
if
the
wings
are
not maintained
exactly
sampler
cup,
which
may
be
stowed
in
the
map compartment,
is used
to
level.
Resulting
wing heaviness
can be alleviated
drain
the
valves.
The sampler
cup has a probe
in
the
center
of
the
cup.
gradually
by
turning the
selector
valve
handle
to the
When
the
probe
is inserted
into
the
hole in
the
bottom
of
the
drain
valve
tank
in
the
"heavy"
wing.
and
pushed
upward,
fuel flows
into
the
cup
to
facilitate
visual
inspection
of
the
fuel.
As
the
cup is removed,
the
drain
valve
seats,
stopping
the
For fuel system
servicing
information,
refer
to
Lubrication
and Ser-
flow of fuel.
vicing
Procedures
in
Section
V.
7-16
2-1
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