31
C.A.T.
Testing
It
is
possible
(and
recommended)
to
test
the
functions
and
performance
of
C.A.T.
before
actually
flying
the
helicopter.
It
is
easiest
to
test
in
the
LO
mode
as
you
can
keep
the
motors
connected
to
the
control
unit
(but
be
sure
to
use
extreme
caution
as
the
rotor
blades
will
spin
with
any
left
‐
hand/throttle
stick
input!).
However
you
can
also
test
in
the
HI
mode
AFTER
disconnecting
the
motors
from
the
control
unit,
moving
the
corresponding
switch
on
the
transmitter
to
the
ON
position
and
raising
the
left
‐
hand/throttle
stick
to
above
approximately
the
1/3
position
for
5
seconds.
You
can
test
the
function
and
performance
of
C.A.T.
by
keeping
yourself
and
all
obstacles/objects
‘clear’
of
the
sensors
(holding
the
helicopter
by
the
landing
gear/skids,
above
your
head
and
near
the
center
of
the
room
is
one
way
to
accomplish
this).
Then
hold
your
open
hand/palm
or
another
similarly
sized
and
relatively
flat/solid
object
aligned
in
front
of,
parallel
to
and
approximately
16
‐
20
inches
(40–50
centimeters)
away
from
each
sensor
to
see
the
response
(NOTE:
If
you
hold
your
hand
or
the
object
closer
than
or
farther
than
16–20
inches
away
you
may
not
see
a
consistent
response
during
this
test).
And
as
long
as
the
sensors
are
connected
to
the
C.A.T.
module
and
functioning
correctly,
you
should
note
the
following
responses
during
the
test:
When
you
hold
your
hand
or
an
object
in
front
of
the
REAR
sensor
(SEN
1),
the
elevator
(left
‐
hand)
servo
should
push
the
swashplate
upward
(forward/down
elevator
control
input).
When
you
hold
your
hand
or
an
object
in
front
of
the
LEFT
sensor
(SEN
2),
the
aileron
(right
‐
hand)
servo
should
pull
the
swashplate
downward
(right
aileron
control
input).
When
you
hold
your
hand
or
an
object
in
front
of
the
FRONT
sensor
(SEN
3),
the
elevator
(left
‐
hand)
servo
should
pull
the
swashplate
downward
(backward/up
elevator
control
input).
When
you
hold
your
hand
or
an
object
in
front
of
the
RIGHT
sensor
(SEN
4),
the
aileron
(right
‐
hand)
servo
should
push
the
swashplate
upward
(left
aileron
control
input).
If
the
wrong
servo
responds
and/or
the
servo
responds
in
a
different
direction
than
noted
above
you
should
check
to
see
if
the
corresponding
sensor
is
connected
to
the
correct
channel/set
of
pins
on
the
C.A.T.
module.
Or,
if
the
servo
does
not
respond
at
all
it
may
be
necessary
to
replace
the
servo
or
sensor.
You
can
also
use
this
test
procedure
to
determine
approximately
how
well
a
particular
obstacle/object
can
be
detected.
By
keeping
yourself
and
all
other
obstacles/objects
clear
of
the
sensors,
hold
the
helicopter
approximately
4
feet
(1.2
meters)
away
from
the
obstacle/object
you’d
like
to
check/characterize.
Position
the
helicopter
so
the
obstacle/object
is
aligned
in
front
of
and
parallel
to
one
of
the
sensors.
Then,
slowly
move
the
Summary of Contents for Evolve 300 CX
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