YS-S4 Multi-rotor Autopilot User Manual V1.4
6
4.
Installation
4.1
YS
‐
S4
Module
Installation
1)
The
YS
‐
S4
Module
should
be
placed
level
on
the
main
body
of
the
aircraft.
2)
For
best
results
install
at
the
Center
of
Gravity
(CoG)
of
the
aircraft.
3)
The
“
Front
Arrow”
MUST
point
towards
the
head
of
the
aircraft:
IMPORTANT:
The
YS
‐
S4
will
adapt
to
most
aircraft
types
without
inner
dampening.
It
may
not
adapt
satisfactorily
to
larger
aircraft
in
which
case
the
YS
‐
S4
should
be
mounted
on
the
optional
dampening
structure
shown
below
and
available
from
ZeroUAV.
YS
‐
S4
dampening
structure
4.2
GPS
Module
Installation
1)
Ensure
that
the
sticker
faces
up
and
the
arrow
points
towards
the
head
of
the
aircraft.
Otherwise
the
aircraft
may
fly
in
circles
when
in
auto
‐
hover
mode.
2)
The
GPS
module
should
be
installed
on
a
level
GPS
stand,
mounted
higher
than
the
electrical
components
on
the
aircraft.
This
ensures
minimal
magnetic
field
effect
from
the
other
on
‐
board
components,
such
as
power
cables,
transmitters,
motors,
ESCs
and
camera.
Arrow
towards
aircraft
head
Towards aircraft nose
