22. Q & A
ALIGN
a .
.so
Pitche s up
during
fast
fo
rward
fligh
t.
(1)Elevator gyro gain
too
low, increase the elevator gain by gradually turni ng the E
lE
dial clockwise.
(2jElevator trim not cen tered. Check
if helicopter is tilting backwards during hover.
Insuffi
c
ient
gain
during
fli
ght,
but
increasing
gain
re
sult
s in
osc
ill ation.
1
1)Check and resolve possible mechanical vibration from helicopter.
2lUse softer 3GX mountin g foam, or double up the stock 3GX foam.
(3\Relocale the 3GX to location less prone to vibration.
Drifting during 3D maneuvers.
(1)Increase All and ELE gain by turnin g both dials clock
wise
.
(2)Check if cyclic servos are 100 slow (minimum o.oasec 160 degrees)
Un
stable
ho
ver
,
contro
l
inputs
are too sens i
tiv
e.
Can adjust the roll rate within 3GX Flight Mode sett ings, as well as increase the EXP selting to Increase hovering stability.
For CCPM machines,
dec
rease swashplate mixing percentage on the transmitter. In addi tion, exponential can be added to
aileron and elevator channels.
H
eli
c
opt
er
o
scUlat
es
aft
er f
ast
forward
fli
ght
or
afte r
tumbles
.
('
IGradUally reduce both AIL and ELE gain by turning them counterclockwise. 10 degrees at a time .
(2 Use harder head dampener.
~
...
,
While in f1ybarless set
up
mo
de,
un
able
to
camplet
Disabl e all trimslsubtrims on the transmitter.
InC:
OlT(let
CCPM
m
ixing
after
Initi al fl
ybarle
ss
setup.
" ITrimiSUbtrimS not zeroed out on transmitter.
2 After any trim adjustmenls are done on transmitter, the initial flybarless setup procedure need to be performed again.
~
3
Please tum off the swash ring , Linkage Compensation, S
was
h Mix, Mixing, Accaleration and other collective mixing functions
in the transmitter .
3GX
flybartess
system
unab
le to
pow
er
up
.
(1)Check proper voltage source.
(2)Check AI
LlEL
ElP1Tco nnections between f1ybarle ss control unit and receiver.
(3)Check the
powe
r connection
of
3GX and receiver.
3GX
flybarless
system
p
ow
ers
up
with
LEO fl
ashing
,
but
s
was
hplate
did
not
jump
3
time
s,
pitch
Is lo
cked
,
unable
to
complete th e
initialization
process
.
I
,
IPossible m
ovement
during initialization proce ss. Make sure helicopter is absolutely stationary.
2 If STATUS LED flashes red, check the connection between controller and recei
ver
,
I n
oticed
swashplate
tilts
slightly
at
extreme
pit
ch du e
to
servo
intera
ctions
, should I
make
efforts
to
level
it
out?
No. Level the swashpla te at 0 degrees using subtrims ONLY in DIR setup m
ode
. (please refer to page 23 step1.3)
End point swashplate interactions are automatically compensated by the 3GX system while in flight.
a 1
Wh
at
adjustments
can I
make
on
the
transmitt
er
aft
er th e DIR setup has been
complet
ed ?
You can adjust the trim tabs, dual rates, expone ntial, collective pitch.
Dur
ing
step
5
of
DIR
setup
mode,
on
ly
aileron
swash
mixing
was
menti
oned
.
Should
I
set
elevator
swash
mix
ing
as
well
?
No. The 3GX system automatically calculates a cyclic ring based on the aileron swash mix percentage. Selting of elevator s
was
h
mix has no affect on the 3GX system. Set the cyclic pitch by the aileron swash mix
& just use the same value for elevator.
43
To Next Page
Loading...
