Step7–ElectricalWiringandSetup
Themechanicshavetobefullyelectricallysetupandadjusted
prior to installation into the fuselage. As the use of a 12S
(44.4V)setupisnecessary,westronglyrecommendtorunthe
controlequipmentonaseparate2SLipobatteryandBECfor
securityreasons.
In scale configurations main battery power
wires may be
longer than on comparable 3D helicopter equipment. As HV
ESCs do not necessarily have the main battery ground wire
connected to the servo signal ground wire, it may be
necessary to create an additional connection between the
BEC 2S batteries ground wire and the 12S main battery
ground wire. Certain configurations without this ground
interconnection have led to a loss of signal at the ESC from
thereceiverduetoEMCeffects.
The swash plate is a regular 120deg CCPM type, please take
your time to adjust all servo travels, center positions – the
entire 3 axis
gyro – servo – radio setup prior to the
installationintothefuselage.
A 530KV motor such as the Align 750MX run at app. 90%
throttle (hover) shows satisfying results. As space is limited,
please make sure you checkthe dimensions if you intend to
useotherbrandmotors.
In regards
to the gyro setup, we rec ommend to start with
standard values of the 3 axisgyro. Make sure you install the
gyro in a way that provides easy access for connecting your
programming equipment. As the scale fuselage adds
additionalinertiatoeachaxis,gyrosarenormallytobeset
at
alowergyrogain.Allinall,arigidgyroresponsedoesruinthe
scalelookinflight.
Beforeoperatingthemodelcheckthefollowingpoints:
‐The direction of servo rotation (including the throttle
function)andtravels.
‐Thedirectionofeffectofthegyro,andthetransmittermixer
functions
youhaveprogrammed.
‐Collectivepitchtravel(lineartravel‐2/‐3°to+9/+10°)
ATTENTION!
When using the a pitch gauge to adjust correct CP travels,
make sure that the gauge lines up with the flat surface of
therotorblade.Manypitchgaugesdonotshowthecorrect
anglewhensnappedontounsymmetricrotorblades!
The main rotorbladesare not symmetrical. Donot try to fly
inverted.
‐Itis permissibletoreduceservotravels,but notbelow 60%
(inthiscaseadjustthemechanicallinkage);travelsshouldbe
primarilysymmetrical.
‐Applycollectivepitchmin./collectivepitchmax.andfullroll
andpitch‐axis
commandssimultaneouslyin
all directions; rotate the rotor head at the same time, and
checkthatattheextremesoftravelnopartoftherotor
headisobstructed.
‐Theauto‐rotationswitchmustbeassigned,andwithineasy
reach!
‐ When auto‐rotation is selected: throttle position to off,
all
directionsofcontrolandtravelsasinnormal
flight,tailrotorto0°=fixedvalue.
‐Thefirstfewbatteriesshouldbeflownwiththemodelclose
totheground,i.e.nomorethanabout1m
altitude, until you are confident that there are nodefects or
errors,
andthateverythingisworkingfaultlessly:
‐ Use your earscritically(!),listening for unusualsoundsand
vibration,andseekouttheproblemifyouareinanydoubtat
all!
‐Don’tlistentoanyonestandingclosebyiftheytrytohurry
youintoflyingthemodel.
‐Avoid
hoveringoutsidegroundeffect(hoveraltitude witha
model:approx.1m,orhalftherotordiscdiameter):
‐Hoveringrequiresveryhighpower,andyouarecompletely
dependent on the motor: in contrast to most full‐size
helicopters,modelhelicoptershaveonlyone(!)powerplant.
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