Step7–ElectricalWiringandSetup
Themechanicshavetobefullyelectricallysetupandadjusted
priortoinstallationintothefuselage.Astheuseofa12S
(44.4V)setupisnecessary,westronglyrecommendtorunthe
controlequipmentonaseparate2SLipobatteryandBECfor
securityreasons.
Inscaleconfigurationsmainbatterypowerwiresmaybe
longerthanoncomparable3Dhelicopterequipment.AsHV
ESCsdonotnecessarilyhavethemainbatterygroundwire
connectedtotheservosignalgroundwire,itmaybe
necessarytocreateanadditionalconnectionbetweenthe
BEC2Sbatteriesgroundwireandthe12Smainbattery
groundwire.Certainconfigurationswithoutthisground
interconnectionhaveledtoalossofsignalattheESCfrom
thereceiverduetoEMCeffects.
Theswashplateisaregular120degCCPMtype,pleasetake
yourtimetoadjustallservotravels,centerpositions–the
entire3axisgyro–servo–radiosetuppriortothe
installationintothefuselage.
A450KVmotorsuchastheAlign750MXrunatapp.80%
throttle(hover)showssatisfyingresults.Asspaceislimited,
pleasemakesureyoucheckthedimensionsifyouintendto
useotherbrandmotors.
Inregardstothegyrosetup,werecommendtostartwith
standardvaluesofthe3axisgyro.Makesureyouinstallthe
gyroinawaythatprovideseasyaccessforconnectingyour
programmingequipment.Asthescalefuselageadds
additionalinertiatoeachaxis,gyrosarenormallytobesetat
alowergyrogain.Allinall,arigidgyroresponsedoesruinthe
scalelookinflight.
Beforeoperatingthemodelcheckthefollowingpoints:
‐Thedirectionofservorotation(includingthethrottle
function)andtravels.
‐Thedirectionofeffectofthegyro,andthetransmittermixer
functionsyouhaveprogrammed.
‐Collectivepitchtravel(lineartravel‐2/‐3°to+9/+10°)
ATTENTION!
WhenusingtheapitchgaugetoadjustcorrectCPtravels,
makesurethatthegaugelinesupwiththeflatsurfaceof
therotorblade.Manypitchgaugesdonotshowthecorrect
anglewhensnappedontounsymmetricrotorblades!
Themainrotorbladesarenotsymmetrical.Donottrytofly
inverted.
‐Itispermissibletoreduceservotravels,butnotbelow60%
(inthiscaseadjustthemechanicallinkage);travelsshouldbe
primarilysymmetrical.
‐Applycollectivepitchmin./collectivepitchmax.andfullroll
andpitch‐axiscommandssimultaneouslyin
alldirections;rotatetherotorheadatthesametime,and
checkthatattheextremesoftravelnopartoftherotor
headisobstructed.
‐Theauto‐rotationswitchmustbeassigned,andwithineasy
reach!
‐ Whenauto‐rotationisselected:throttlepositiontooff,all
directionsofcontrolandtravelsasinnormal
flight,tailrotorto0°=fixedvalue.
‐Thefirstfewbatteriesshouldbeflownwiththemodelclose
totheground,i.e.nomorethanabout1m
altitude,untilyouareconfidentthattherearenodefectsor
errors,andthateverythingisworkingfaultlessly:
‐ Useyourearscritically(!),listeningforunusualsoundsand
vibration,andseekouttheproblemifyouareinanydoubtat
all!
‐Don’tlistentoanyonestandingclosebyiftheytrytohurry
youintoflyingthemodel.
‐Avoidhoveringoutsidegroundeffect(hoveraltitudewitha
model:approx.1m,orhalftherotordiscdiameter):
‐Hoveringrequiresveryhighpower,andyouarecompletely
dependentonthemotor:incontrasttomostfull‐size
helicopters,modelhelicoptershaveonlyone(!)powerplant.