YS-S4 Multi-rotor Autopilot User Manual V1.4
30
In
this
mode,
craft
will
hold
the
altitude
but
not
hold
the
position.
When
the
THR
stick
is
in
its
50%
position
the
craft
will
hover
in
the
current
altitude
but
not
at
its
current
position
(the
craft
will
drift
when
the
GPS
is
not
locked),
but
the
craft
can
still
be
controlled
manually.
Left/right
is
controlled
by
the
AILERON
Stick,
Up/Down
controlled
by
the
ELEVATOR
stick,
direction
is
controlled
by
the
RUDDER
stick,
and
height
controlled
by
THR
stick.
If
the
THR
stick
is
50%,
craft
will
auto
‐
hover;
If
THR
stick
is
more
than
50%,
craft
will
fly
upward;
If
THR
stick
is
less
than
50%,
craft
will
descend.
The
Craft
can
fly
to
any
altitude
controlled
by
THR
stick,
and
fly
to
any
position
controlled
by
the
other
sticks.
(4)
Auto
hover
With
GPS
located
(when
satellites
locked
are
more
than
5)
and
CH5
is
in
position2
and
CH6
in
position1,
the
S4
will
enter
auto
‐
hover
mode.
In
this
mode,
the
aircraft
will
hold
its
position
and
altitude.
Your
TX
sticks
should
all
be
in
the
mid
position.
When
THR
stick
is
around
the
mid
position
the
craft
will
hover
in
its
current
position,
(The
craft
does
not
drift
because
GPS
has
locked)
and
also
may
controlled
manually.
Left/right
is
controlled
by
the
AILERON
Stick,
Up/Down
controlled
by
the
ELEVATOR
stick,
direction
is
controlled
by
the
RUDDER
stick,
and
height
controlled
by
THR
stick.
If
the
THR
stick
is
50%,
craft
will
auto
‐
hover;
If
THR
stick
is
more
than
50%,
craft
will
fly
upward;
If
THR
stick
is
less
than
50%,
craft
will
descend.
The
Craft
can
fly
to
any
altitude
controlled
by
THR
stick,
and
fly
to
any
position
controlled
by
the
other
sticks.
(5)
Return
and
Land
(RTL)
With
GPS
locked
(more
than
5
satellites
locked)
and
Motor
arming
done,
the
craft
will
record
its
home
position.
a)
Push
CH6
to
position
2
to
enter
RTL
(return
and
land)
mode.
In
the
Return
and
Land
mode,
the
craft
will
return
home
and
land
automatically.
b)
After
activation,
you
can
only
change
to
Stabilization
Mode
if
you
want
to
take
over
the
flight
controls.
If
you
move
from
RTL
to
Auto
Hover
Mode,
the
aircraft
will
continue
with
the
Return
and
Land
process.
c)
On
arrival
at
‘Home’,
the
YS
‐
S4
V2
will
begin
to
descend.
At
this
time,
the
autopilot
will
allow
you
to
take
over
AIL
and
RUD
controls
to
adjust
the
landing
site,
but
the
THR
cannot
be
controlled.
The
THR
control
is
fully
autonomous
for
descent
and
landing.
d)
Altitude:
If
the
craft
is
beyond
25
meters
away
from
home
position
and
below
20
meters
altitude,
the
YS
‐
S4
V2
will
ascend
to
20
meters
before
initiating
RTH
when
it
enters
RTL
mode.
If
its
height
is
more
than
20
meters,
the
YS
‐
S4
V2
will
maintain
altitude
during
RTH.
If
the
distance
from
home
position
is
more
than
20
meters,
the
YS
‐
S4