Value Hobby Piper J3 Cub 40 User manual

Category
Toys & accessories
Type
User manual

Value Hobby Piper J3 Cub 40 is an Almost-Ready-to-Fly airplane model designed for experienced pilots. The device is constructed from lightweight balsa and plywood, providing durability and ease of handling. The Piper J3 Cub 40 boasts a 70.6-inch wingspan and a flying weight ranging from 5.3 to 6.0 pounds. With its classic trim scheme and excellent scale details, it offers a realistic flying experience. The model is equipped with a complete set of hardware, ensuring a hassle-free assembly process.

Value Hobby Piper J3 Cub 40 is an Almost-Ready-to-Fly airplane model designed for experienced pilots. The device is constructed from lightweight balsa and plywood, providing durability and ease of handling. The Piper J3 Cub 40 boasts a 70.6-inch wingspan and a flying weight ranging from 5.3 to 6.0 pounds. With its classic trim scheme and excellent scale details, it offers a realistic flying experience. The model is equipped with a complete set of hardware, ensuring a hassle-free assembly process.

PiperJ3Cub40
Almost-Ready-to-Fly
INSTRUCTIONMANUAL
Specifications
Wingspan:70.6in(1795mm)
Length:45in(1145mm)
WingArea:682sqin(44sqdm)
FlyingWeight:5.3‐6.0lb(2400‐2700g)
Features
Excellentscaledetailsandclassictrimscheme
Easyfuselageaccesswithtopfuselagehatch
Lightweightbalsaandplywoodcontruction
Completehardwareincluded
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DearCustomer,
CongratulationsonyourpurchaseofpiperJ3Cub40ARFfromValueHobby.Wethankyouforyourgenerous
support,andhopeyouenjoyyournewairplane.
AtValueHobby,wehopetooffercompetitiveprices,goodperformance,andproductsthatyoucansetupand
usewithease.That’swhyweextensivelyresearchedandtestedthisairplane,andsuggestedalltheproducts
necessaryforyoutosetupproperly.Weunderstandthatyouhavemanychoiceswhenpurchasing,andweare
gratefulyouchoosetobuyfromus.
Asvendors,oneofthemostgratifyingthingsforusistohearfromourcustomers.Wewouldwelcomeany
suggestiontohelpusimprove.Pleasemakeusawareofanyerrorsandimperfectionsintheairplaneorthe
instructions,oraboutthesetupthatwesuggested.Wehopeyou’llfindoursetupsuggestionstobehelpful,and
enjoyflyingyournewairplane.Pleasefeelfreetocontactusat(630)9480947oremailusat
support@valuehobby.com
Disclaimer
Bypurchasingand/orbuildingthismodel,userassumesALLliabilityandriskinvolvedwiththisproduct.This
modelshouldbebuiltandflownbyanexperiencedpilotandonlyflownatAMAsanctionedsites.
ValueHobbyguaranteesthismodeltobefreeofdefectsinmaterialsandworkmanshipatthedateofpurchase.
Thiswarrantydoesnotcoveranypartsdamagedbyuseormodifications.InnowayshallValueHobbysliability
exceedtheoriginalcostofthepurchasedmodel.Further,ValueHobbyreservestherighttomodifythiswarranty
withoutnotice.ValueHobbyhasnocontroloverthefinalstagesofassemblyorthematerialusedforthefinal
assembly.Noliabilityshallbeassumednormaterialsusedforthefinaluserassembledproduct.Bytheactof
usingthefinalproducttheuseracceptsallresultingliability.ValueHobby,asaR/Cproductvendor,providesa
topqualityairplaneandinstructionstocompletethemodel.Thequalityandflightcharacteristicsofthefinished
modeldependgreatlyonhowitisbuilt;wecannotguaranteetheperformanceforthecompletedmodeland
representationsareexpressedorimpliedastotheperformanceofthecompletedmodel.Ifthebuyerisnot
preparedtoaccepttheliabilityassociatedwiththeuseofthisproduct,thebuyerisadvisedtoreturnthiskit
immediately,innewandunusedcondition.
SafetyinAssembly
Duringassemblyofthisaircraft,youwillbeaskedtousesharpknivesandhobbyadhesives.Pleasefollowall
safetyproceduresrecommendedbythemanufacturersoftheproductsyouuse,andalwaysfollowthese
importantguidelines:
ALWAYSprotectyoureyeswhenworkingwithadhesives,knives,ortools,especiallypowertools.Safetyglasses
arethebestwaytoprotectyoureyes.
ALWAYSprotectyourbody,especiallyyourhandsandfingerswhenusingadhesives,knives,ortools,especially
powertools.Donotcuttowardexposedskinwithhobbyknives.Donotplacehobbyknivesontablesorbenches
wheretheycanrollofforbeknockedoff.
ALWAYShaveafirstaidkithandywhenworkingwithadhesives,knives,ortools,especiallypowertools.
ALWAYSkeephobbyequipmentandsuppliesoutofthereachofchildren.
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SafetyinFlying
ThisisNOTatoy!ItisaveryhighperformanceRCairplanecapableofhighspeedsandextrememaneuvers.It
shouldonlybeoperatedbyacompetentpilotinasafeareawithpropersupervision.
ONLYflyyouraircraftinasafe,openarea,awayfromspectatorsandvehicles–andwhereitislegaltofly.
NEVERflyoveranunsafearea,suchasaroadorstreet.
Neverflytooclosetoyourselforspectators.
NeverrunyourmotorinsideahouseorbuildingwiththepropellerattachedRemovethepropforsafety.
RequiredItems
CAGlueThinandThick
Epoxyglue
HobbyKnife
SmallPhillipsScrewdriver
SetMetricAllenWrenches
Scissors
SmallPliers
WireCutters
Maskingtape
OptionalHeatgun
BeforeStartingAssembly
Examination
Unpackyourairplaneandexaminethecomponents.Checkfordamageofanykind.Ifyouseeanydamage,
pleasecontactValueHobbyimmediately.
Covering
Yourairplanewaspackedinplasticatthefactorywithoutanywrinklesinthecovering.Youmaynoticesome
wrinklesnow;morelikely,youwillnoticeafewinadayortwoorthefirsttimeyoutaketheplaneouttothe
flyingfield.Thesewrinklesaretheresultofwoodshrinkageand/orexpansion.Balsawoodchangessizeand
shapeslightlyasitisexposedtovaryinghumidityintheair.Thisisanaturalpropertyofbalsawood.Asyour
airplaneadjuststotheweatherinyourpartoftheworld,wrinklesmayappearanddisappear.Wrinklesmaybe
removedwiththegentleapplicationofheattothecoveringmaterialonyourairplane.Thebesttooltouseisa
hobbyheatgun.Applytheheatgently:thecoveringmaterialwillshrinkasyouapplytheheat,andthiswill
removethewrinkles.BECAREFUL!Toomuchheatappliedtooquicklycandamagethecovering,eitherby
causingittopullawayfromthewoodatseamsandcornersorevenbymeltingit.Thecoveringwillshrinkatlow
temperaturewithpatientapplicationofheat.
WrinklesinthecoveringDONOTaffectflightperformance.
Removethecanopybeforeattemptingtouseheatonyourcovering!Thecanopyismadeofthermoactivated
plasticandWILLdeformwiththeapplicationofheat.Donotapplyheattothecanopy.
Ifyouneedtocleanyourairplane,werecommendusingadamptowel.Thepaintusedonthecanopyandcowlis
notsafeforallcleaners.Inparticular,DONOTusealcoholontheseparts,itwillremovethepaint.
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RecommendedSetup
MainPartsoftheAirplane
Accessoriesandsmallpartsnotpictured
ConfigurationModelQty
Radio4channel 1
MotorSizeGForceG32BrushlessOutrunnerMotor4250800KV)1
SpeedControl80ABrushlessESC1
Recommended
BatteryLiPOGForce30C4000mAh4S14.8VLiPO1
PropSize14X7or15X61
ServosStandardservos5(nitro)
4(electric)
YHarnessUniversalServoYHarness300mm11.8Inch(Futaba"J"and
JRCompatible)1
ExtensionUniversalServoExtension600mm23.6Inch(Futaba"J"and
JRCompatible)2
ChargerGTPOWERXCHARGERC66SLiPOCharger1
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Section1:AileronInstallation
Step1.Locatetheaileronhingesfromthehardware
pack,andinsertthehingesintheslotsinthetrailing
edgeofthewing.
Step2.SaturateeachofthehingeswiththinCA.Make
suretoglueboththetopandbottom.
Step3.Usethehingetoputtheaileroninposition.
Useahobbyknifetosetthegapbetweenthecontrol
surfaceandthewing.Alsocheckthattheaileroncan
movefreelywithoutrubbingatthewingtip.
Step4.Flextheaileronupanddownseveraltimesto
breakintheaileronhinges.
Step5.Repeatsteps1through4toinstallthe
remainingaileron.
Section2:AileronServo&Control
HornInstallation
Step1.Locatetheitemsshowninthepicturebelow.
(ServosandYHarnesssoldseparately).
Step2.Removethecoveringfortheinboardservoin
thebottomofthewingasshown.
Step3.Gluetheservomountingblockstotheservo
hatch.(Thelocationhasbeenmarked).
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Step4.Placeaileronservobetweenthemounting
blocksandmounttheservototheblocks.(Please
centertheservoarmelectronicallybeforemounting).
Step5.Usetwoselftappingscrewstosecurethe
blockswontloose.
Step6.Tieawheelcollarontoapieceofstring.Drop
thewheelcollarintothewingfromtherootand
retrieveitfromtheservoopening.
Step7.Tiethestringontotheservoextension.Gently
pulltheextensionthroughthewingusingthestring.
Untiethestringwhentheservoleadhasbeenpulled
through.Usetapetosecuretheservoleadtothewing
topreventitfromfallingbackintothewingpanel.
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Step8.Securethehatchtothewing.
Step9.Connecttheclevistothecontrolhorn.Center
thecontrolsurfaceanduseapentomarkthe
pushrodwhereitcrossestheholeoftheservohornas
shown.
Step10.Bendthepushrod90degreeatthemark,trim
theexcesswiredependingonthelengthofthewire
needed,anduseapushrodconnectortosecurethe
pushrodwiretotheservohorn.
Step11.Repeatsteps1through10toinstallthe
remainingservo.
Section3:ElevatorInstallation
Step1.Slidethehorizontalstabilizerintotheslotin
thefuselage,andcenterthestabilizerinthefuselage.
Step2.Tracetheoutlineofthefuselageonthe
horizontalstabilizerusingafelttippedpen.
Step3.Removethecoveringfromthehorizontal
stabilizerinsidethelinedrawninthepreviousstep.
Step4.Positionthestabilizerandelevatoronaflat
surfaceasshown,andmakesuretheyarein
alignmentwitheachother.Thencenterthejoiner
wireontheelevatorandmarktheelevator.
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Step5.Carveslotsanddrillholesforthejoinerwireon
thelocationsmarkedontheleadingedgeofthe
elevators.
Step6.Slidethejoinerwireintotheslotinthe
fuselageasshown.
Step7.Insertfourhingesintotheslotsintheelevators
andsaturateeachofthehingeswiththinCA.Make
suretoglueboththetopandbottom.
Step8.Usethehingesandjoinerwiretoplacethe
elevatorsinposition,andflextheelevators
45degreesafewtimesupanddown,makesurethe
elevatorcanmovefreely.ThenapplythinCAonthe
hinges.
Step9.Carefullycheckthealignmentofthestabilizer
tothewingtomakesureA=Basshown.
Step10.ApplythethinCAonboththetopandbottom
ofthestabilizertosecurethestabilizerontothe
fuselage.
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Section5:Rudderandtailwheel
Installation
Step1.Slidethefinbackintothefuselage.Checkthe
alignmentofthefintothestabilizerusingasquare.
Thefinmustbe90degreestothestabilizerwhen
properlyaligned.
Ifnot,carefullysandthebottomofthefintoprovide
theclearancetoalignthefin.
Step2.Insertthefinintotheslotinthefuselageand
applysomeglue.Makesurethefinisfullysecured.
Youmightalsouse30minuteepoxytosecurethefin.
Applytheepoxytoboththeexposedwoodonthefin
andtheslotinthefuselage.Usecarenottogetepoxy
ontheelevatorjoinerwire.Insertthefinandusetape
toholdthefininpositionuntiltheepoxyfullycures.
Step3.Locatethetailwheelassembly.Roughenthe
tailgearwireusingmediumgritsandpaperwhereit
willentertherudder.Getthemassembled.
Step4.Drillaholeintherudderforthetailwheelwire.
Insertthehingesintotheslotsintherudderandtest
fitthewheelwireintothegroove.(Bendthewire
90degreessoitcaninsertthepredrilledhole).
Step5.Securethetailwheelbrackettothefuselage
usingtwo2x3/8insheetmetalscrews.
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Step6.Slidethewheelcollaragainstthetailwheel
bracketandtightenthesetscrew.
Section6:LinkageInstallation
(RudderandElevatorServo)
Step1.Locatetheitemsnecessaryforthissection.
Step2.Threadaclevisontoa6inwireaminimumof
10turns.
Step3.Removethebackplatefromacontrolhorn
usingsidecuttersorasharphobbyknife.Positionthe
controlhornontheelevatorsothehornalignswith
thehingelineoftheelevator.Markthepositionfor
themountingholesusingafelttippedpen.
Step4.Drillthree3/3 2 i n holesthroughtheelevatorat
thelocationsmarkedinthepreviousstep.
Step5.Place23dropsofthinCAintotheholeto
hardenthewood.Repeatthisforeachofthethree
holes.
Step6.Attachthecontrolhornusingthree256x1/2
screwsandthecontrolbackplate.
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Step7.Attachthepushrodconnectortotheholeof
theservoarmasshown.
Step8.Slidethewirethroughtheouterholeinthe
elevatorservoarm.Securethewireusinganylonwire
keeper.Itmaybenecessarytodrillouttheholeinthe
servoarmusinga5/6 4 " drillbit.
Note:Usea1/4 " pieceofheatshrinktubingonthe
clevistokeepitfromopeningduringflight.
Step9.RepeatSteps2through8fortherudder
linkage.
Section7:NitroMotorInstallation
Step1.Locatetheitemsshowninthepicture.
Step2.UsingfourPM4X.7874inSHCS,fourM4fiat
washers,fourM4lockwashers,andthreadlocking
compound,attachtheenginemountrailstothe
firewall.Leavethescrewsslightlyloose.Testfityour
enginebetweenthemounthalves.Slidethemount
halvesagainstthesidesoftheengineandfinish
tighteningthemountscrews.
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Step3.Positionthefrontoftheenginedrivewasher
4.1338in(105mm)fromthefrontoftheengine
mountingbox.Markthelocationoftheenginemount
holesontothemountrailsusingaDeadCenterHole
LocatorRemovetheenginefromthemountandusea
Ф4tapanddrillsettocreatethreadsinthefour
mountingholes.Attachtheenginetothemountusing
fourPM420mmSHCS,fourФ4fiatwashers,andfour
Ф4lockwashers.
Step4.Prepareanassembledservohornarmas
shown.
Step5.Attachaquickconnectortotheservoarm
usingquickconnectorwashersandretainers.Center
thethrottlestickandtrimwithboththereceiverand
transmitteron.Installthethrottleservoarminthe
neutralposition.
Step6.Movetheservotothethrottleopenposition
usingtheradiosystem.Manuallymovethethrottle
armonthecarburetortotheopenposition.Usea
3mmsetscrewtosecurethethrottlepushrodwire.
Step7.Checkthemovementofthethrottletoverify
thereisnobindingateitherloworhighthrottle.If
thereis,makethenecessaryadjustmenttoeliminate
anybinding.Installthethrottleservoarmscrewwhen
complete.
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Section8:FuelTankInstallation
Step1.Thefueltankcanbeassembledasatwoline
systemconsistingofavent(pressure)linetothe
mufflerandacarburetorline.Fillingandemptyingof
thetankwouldneedtobedonethroughthe
carburetorline,oranoptionalfuelfillvalve.Thetank
canalsobeassembledasathreelinesystemhavinga
ventline,carburetorline,andfillline.Ifinstallafill
line,puncturethetopofthestopperabovethesealed
offfueltubehole.Thefillandcarburetorlinesshould
extendout13mmbeyondthestopperandthevent
lineshouldbebentupwardsandleftuncut.Withthe
tubesinstalledinthestopper,thestopperplates
looselyinplacewiththePM3x25mmscrewtohold
theassemblytogether.
12mm
Step2.Fitthestopperassemblyintothetankwiththe
ventlinepointingtowardthetopofthetank,butnot
touching.Thefueltubingandclunks(fuelpickup)on
thecarburetorandfilllinesshouldalmostreachthe
backofthetankbutnottouch.Theclunksmustbe
abletomovefreelyinsidethetankwhenassembled.
Adjustthelengthofthefueltubingaccordingly.When
satisfied,tightenthePM3x25mmscrewinthestopper
tosecureitinplace(donotovertighten).Markthe
sideofthetankthatmustfaceupwheninstalledin
theplane.Wealsosuggestmarkingthetubesinthe
stopper.
Step3.Insertthetankintothefuselagewiththe
correctsidefacingup.Thefueltubingshouldbe
routedthroughtheholeinthecenterofthefirewall.
Section9:LandingGear&Wheels
Installation
Step1.Locatethepartsofthemainlandinggearfrom
thehardwarepack.
Step2.Installthemainwheelsonthewheelpantsas
shownbelow.
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Step3.Repeatsteps2fortheothersideofthelanding
gear.
Step4.Installthelandinggearlegsintothefuselage
withtheprovided3mmscrewsasshownbelow.
Section10ElectricMotorandESC
Installation
Step1.Locatetheitemsforthissection.
Step2.Installyourbrushlessmotorontothemotor
mountusingthe4black3mmallenheadscrews
includedinyourkit.Makesurethemotorspinsfreely.
Dependingonthesizeoftheshaftcollaronyour
motor,youmayneedtoremoveasmallamountof
woodfromthefirewallforfreerotation.
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Step3.InstalltheESCinsidethemotorboxorinside
thefuselage,dependingontherequirementof
balancingtheCG.
Section11:CowlingandSpinner
Installation
Step1.Installthecowlandaligncarefullysothatthe
spinnermatchesthecowlasdesired.Besurecanopy
hatchisinplaceforthisstep.
Step2.Useahobbyknifetomakesmallholesthrough
thepaperstripsintothecowling.Thislocatesthecowl
screwsaccuratelysothattheywillscrewintothe
plywood.Usethe4smallremainingwoodscrewsto
mountthecowl.
Step3.Fixcarefullythepropandspinnerasshown
below.
Section12:WindowsInstallation
Step1.Locatethefrontwindscreenandsidewindows.
Usethehobbyscissorstotrimthesidewindowsfrom
theirsheets.
Step2.Removethecoveringsforsidewindows.
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Step3.Use4screwstosecurethefrontwindscreento
thefuselage.
Step4.UsethinCAtosecurethesidewindowstothe
fuselage.
Step5.Thehatchisremovable.
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Section13:WingInstallation
PartsRequired.
Step1.Slidethewingtubeintothewingpanel.Slide
thetubeandpanelintopositiononthefuselage.
Step2.SecurethewingpanelusingaM6*25MM
nylonbolt.
Section14:SettingCGandControl
Throws
RecommendedCG
Forthefirstflights,therecommendedCenterof
Gravitylocationis84mmbehindtheleadingedgeof
thewingagainstthefuselage.Usethebatterypack,
movingitforwardorbackward,toachievethecorrect
balance.
Low/PrecisionRates(indegrees)and
CorrespondingExponential

Elevator
LowRate
11/16"(11.5º)Up9/16"(10º)Down
HighRate
1/4 " (19.5º)Up1"(18º)Down
Linearmeasurement(Inches)measuredatwidest
partofelevator(roughlyinthecenter).
Aileron
LowRate
3/8 " (8º)Up1/2 " (9º)Down
HighRate
7/8 " (21º)Up11/16"(22º)Down
Linearmeasurement(inches)measuredatroot.
Rudder
11/2"(28º)Left11/2"(28º)Right
Linearmeasurement(inches)measuredatfrontof
counterbalance.
Note:UsetheLowRateformostflying.TheHigh
Rateisusedspecificallyforperformingspin
maneuvers
Note:thatFutabaandHitecradiosrequire
NEGATIVEexponential,whileJRandSpektrumuse
POSITIVEexponential.
Rangetestyourradio
step1.Beforefly,besuretorangecheckyourradioas
manufacturersinstructionmanualofyour
radiosystemrecommends.
step2.Doublecheckallcontrols(aileron,elevator,
rudderandthrottle)moveinthecorrectdirection.
step3.BesurethatyourLiPObatteryisfullycharged.
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Finally...
Enjoy Your Piper Cub J3 40
Have a nice flight!
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Value Hobby Piper J3 Cub 40 User manual

Category
Toys & accessories
Type
User manual

Value Hobby Piper J3 Cub 40 is an Almost-Ready-to-Fly airplane model designed for experienced pilots. The device is constructed from lightweight balsa and plywood, providing durability and ease of handling. The Piper J3 Cub 40 boasts a 70.6-inch wingspan and a flying weight ranging from 5.3 to 6.0 pounds. With its classic trim scheme and excellent scale details, it offers a realistic flying experience. The model is equipped with a complete set of hardware, ensuring a hassle-free assembly process.

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