Ripmax Trainer 40 User manual

Trainer40InstructionManual

Introduction
Trainer40Instructions
ThankyouforpurchasingtheTrainer40,
andwelcometothedynamicworldof
modelaviation!Perhapsmoresothanany
otherbranchofmodelOperation,model
aircraftpresenta uniquesetofchallenges
Trainer40willhelpyouto
masterthese,enablingyouto
becomea proficientandsafepilot.
YourTrainer40instructionmanual
willtakeyoustepbystepthrough
thebuilding,installationand
Operationofeveryaspect
ofa modernand
sophisticated
trainingaircraft.
Followinga logicalbuildingsequence,
illustratedwithbothphotographs
anddetaileddescriptions,
theTrainer40will
assemblewith
easeandin
theminimum
oftime.
Tohelpyouchoosethemost
suitableaccessoriesforyourmodel,a
completelistofrecommendedhardwareis
includedtogetherwithbasictooland
adhesiverequirements.
Completed,yourTrainer40willequipyou
withthebestavailableairframewithwhich
tomasterthechallengeofmodelflying.Itis
stronglyrecommendedthata localclubis
joinedwhosememberscancheckthe
modelover,carryouttheinitialtestand
trimmingflightsandthenteachthefledgling
pilottheintricaciesofmodelflying,allwithin
asafeandcontrolledenvironment.
Oncesoloandcompetent,theStudentwill
beabletoexplorethemoreadvancedflying
capabilitiesoftheTrainer40,suchasloops,
rollsandstallturns.These,andother
manoeuvres,arepossiblefromthesame
basicairframeandwillequiptheStudent
withanunderstandingofall
thingsaerodynamic.

Beforestarting
Righthandwingpanel
Lefthand
wingpanel
Fin
Fuselage
Removetheprotectivewrappingandidentifytheairframecomponents.Thewingpanelsincludetheaileronshingedand
Thetailplaneincludestheelevatorhingedandfitted.Thefinincludestherudderhingedandfitted.Thefuselageincludes
mountandnoselegbracketfittedandthecontrolpushrods.
OpenthelargeaccessorybagandidentifytheContents.
Keepthesmallerbagssealeduntiltheirpartsarerequired
foruse,thiswillpreventlosinganyitem.
fitted.
theengine
AFueltankwithaccessoriesand
foampacking
BNosewheelandpairof
mainwheels
CSelectionofsparewoodforany
minorrepairs
DEngineSpinnerandsecuring
screws
EVariousmountinghardwareand
mouldedcomponents
FWingretainingelasticbands
GMainundercarriagelegs
HNosewheelundercarriageleg
JAileronpushrods
KSeifadhesivecoveringrepair
strip
LAileronservomountingtray
andbearers
Furtheritemsandtoolsrequired
InordertobuildyourTrainer40modela selectionofhand
toolsandadhesiveswillberequired.
Theseinclude:
Steelruler
Cyanoacrylateadhesivemediumviscosity
5minuteepoxyadhesive
30minuteepoxyadhesive
Pliers
Sidecutters
Modellingknife
Smallfile
Smallallenkey
Feittippen
Ballpointpen
Maskingtape
Pinchuckwith1.5mmand2mmdrills
Smallcrosspointscrewdriver

Trainer40Instructions
Joiningthewingpanels
1.Locatethewingjoinerandslideitintotheslotofthelefthandwingpanel.Ifrequired,carefullyfiletheopeningoftheslotto
allowthejoinertopassfreelyintothewing.Usinga pen,markontothejoinerthecentrelineposition.Trimawaythecoveringatthe
aileronservoopeningsonthewingunderside.
1.1Correctorientationofthewingjoiner
4fc^r
1.2Markthewingjoinerwiththewing
centreline1.3Trimawaythecoveringattheaileron servoopenings
2.Followingtheadhesive'sinstructions,mixupsufficientfiveminuteepoxyandspreadtheadhesiveevenlyontoallsidesofone
halfofthewingjoiner.Makingsurethejoineristhecorrectwayup,pushthejoinerintothelefthandwingpaneluptothecentre
linemark,wipingoffanyexcessadhesive.Allowepoxytoset.
2.1Applyingepoxytoonehalfofjoiner2.2Pushinlefthandwingpanel2.3Wipingoffexcessadhesive
3.Trialfittherighthandpanelbyslidingitovertheprotrudingjoiner,checkingthatthetwowingpanelfacesmeetwithoutan
excessivegap.Notethatthewingisnotflatbuthasa slightbend,calleddihedral.Thisisbuiltinautomaticallyusingthejoinerand
panelfaces.WhensatisfiedapplyPLENTYofepoxytothejoinerandpanelface,slidingthejoinerintotherighthandwingpaneland
bringingthetwowinghalvestogether.Toensuresufficientworkingtimeuse30minor1 hourepoxy.Wipeoffanyexcessadhesive
andusemaskingtapetoholdthepanelsalignedtogether.Allowtheepoxytosetandremovethetape.
3.1Applyingepoxytothejoiner
andpanelface
4.Approximatelysixmillimetresfrom
thewingjoin,applymaskingtapeto
eachpanelallaroundthewing.Usinga
pieceofcardorthinwood,scrape
fiveminuteepoxyintothejoinbetween
thetwomaskingtaperuns.Remove
thetapeandallowtheepoxytoset.
3.2Pushingtherighthandpanelover
thejoiner3.3Usingmaskingtapetoholdthe
panelsalignedtogether
4.1Maskingtapeappliedallaround
wingjoin4.2Scrapingepoxyintothejoin

Trainer40Instructions
:ittingtheaileronservc
5.Positiontheaileronservomountingtraycentrallyoverthecut-outinthewingunderside.Usinga Sharpmodellingknifescore
aroundthetraybeingcarefuionlytocutthroughthecoveringandnotthewingsheetingbeneath.Removethecoveringandgluethe
trayinplaceusingmediumcyanoacrylateadhesive.Dependantuponthedepthoftheservo,itmaybenecessarytogluethetwo
servospacerstothetraytoraisetheservotoclearthewing.T
5.1Aileronservotrayandservospacers5.2Scoringaroundaileronservotray5.3Traygluedtowingandspacers
gluedtotray
6.Followingthemanufacturer'sinstructions,fittherubberservomountinggrommetsandbrassferrulessuppliedwiththeradio
enuipmenttotheaileronservoandlocatetheservointhetray.Drill1.5mmpilotholesforthefoursecuringscrewssuppliedwiththe
andscrewtheservoinplace,orientatingtheservoleadtothefrontofthemodel.
6.1Installingaileronservo6.2Drillingpilotholes6.3Screwingservoinplace
7.Centretheaileronservobyswitchingontheradioequipmentwiththestickscentralisedandtrimleversatneutral.Switchoffand
disconnecttheaileronservo.Trimoffthetwounusedarmsfromtheservoarm.Withtheservoarmplacedparallelwiththe
wingspan,pushthearmontotheservo.Usinga 2mmdrill,openouttheholesintheservoarmscorrespondingtoapproximately
11mmeachsideofcentre.
7.1Trimmingofftheunusedservoarms7.2Aileronservocentredwith
armattached7.3Drillingouttheservoarmto2mm
8.Identifythehardwareusedinthe
aileronlinkageasshowninthe
photograph.Screwinplacethetwoaileron
torquerodhornstoanequaldistanceof
25mmfromthewingunderside
8.1Ailerondrivehardware8.2Ailerontorquerodhornsinplace

Trainer40Instructions
9.Threada plasticcleviskeeperontoeachofthetwoclevises.Holdingthethreadedpushrodsusingpliersscrewthetwonylon
clevisesontotheendsofthepushrods.Opentheclevisesandsnapthemintothetorquerodhorns.
9.1Threadingcleviskeeperontoa clevis9.2Screwingtheclevisesto
thepushrods9.3Connectingtheclevisestothe
torquerodhorns
10.Holdinginturneachaileroncentredwiththewing,markthepositionwherethepushrodcrossesthe2mmholeintheservoarm
witha felttippen.Usinga pairofpliers,bendthepushrodupthrough90degreesatthispointandcutofftheexcesslength,
leaving6mmofpushrodafterthebend.
10.1Markingthepushrodbendposition10.2Bendingthepushrodat90degrees10.3Trimmingofftheexcesslength
11.Threadthepushrodsintotheseholesfollowedbya swingkeeperontothepushrods,snappingthekeepersintoplace
onthepushrods.
11.1Pushrodthreadedthroughservo
armhole11.2Swingkeeperthreaded
ontopushrod11.3Swingkeepersnapped%&
ontopushrod
J
12.Reconnecttheservotothereceiverandcheckthattheaileronsarecentredatneutral.Theclevisescanbeundippedfromthe
torquerodhornsandwoundinorouttoachievethis.Securethearmtotheservousingthemanufacturer'sscrew.Finally,pushthe
cleviskeepersclosertothetorquerodhorns.Notethatoneaileronwillriseandonewillfall- thisiscorrectandis
necessarytoeffecta turn.
12.1Securingarmtoservo12.2Cleviskeepersinfinalposition12.3Completedaileron
servoinstallation

Trainer40Instructions
Fittingtheundercarriagelegsandwingretainingdowels
13.Identifytheundercarriagecomponentsasshowninthephotograph.
Theseinclude:threewheels,sixwheelretainingcollets,a noseleg,nose
legsteeringarm,twomainundercarriagelegs,twomainundercarriage
clampsandfourclampretainingscrews.
13.1Undercarriagehardware
14.Ontheundersideoffuselage,locatetheslotforthemainundercarriage,cuttingthroughandremovingthecoveringmaterial.
Insertthetwoundercarriagelegsintotheholesinthemountingblocksandsecurethelegswiththetwoundercarriageclampsand
fourretainingscrews.
14.1Cuttingawaythecoveringoverthe
mainundercarriageslot14.2Insertingthemainundercarriagelegs14.3Completedmain
undercarriagefixing
15.Connectthenoselegsteeringarmtothelowerwirepushrodinthefrontofthefuselageandengageitintotheslotofthenose
legmoulding.Passthenoselegthroughthenoselegmouldingandintothesteeringarm.Notethatthegrooveinthelegshould
facethefrontofthemodelandwillengagewiththescrewinthesteeringarm.Tightenthescrewofthesteeringarmonto
thenoseleg.
-^Mrv
15.1Noselegsteeringarmlocatedinto
noselegmoulding15.2Fittingthenoselegtothenose
legmoulding15.3Tighteningthesteeringarmscrew
16.Fita wheelcollettoeachofthe
threeundercarriagelegsina position
justoutsidethebendoftheaxles.Add
thewheelsandretainthemwiththree
furthercolletsensuringthewheelscan
rotatefreely.Securelytightenthe
colletscrews.
16.1Fittingtheinboardcollets16.2Fittingthewheelsandsecuring
withtheoutboardcollets

Trainer40Instructions
17.Usinga finger,locatethetwowingdowelholesbelowthewingseatingoneachsideofthefuselageside.Cutawayandremove
thecoveringmaterialatthesepointsandinsertthetwowingdowelsthroughtheholes.Measurethedowelstoensuretheyare
protrudinganequalamountandapplya smallamountofmediumcyanoacrylatetosecurethem.
17.1Cuttingawaythecovering17.2Insertingthedowels17.3Securewitha dropofmedii
cyanoacrylate
•ittingthetailsurfaces
18.Usingtheslotedgesasa guide,cut
throughandremovethecovering
materialfromthefinandtailplaneslots
attherearofthefuselage.
18.1Carefullycutthroughandremovethe18.2Repeatforthetailplaneslot
coveringatthefinslotposition
19.Assemblethewingcentrallytothefuselageandsecureitusingtwowingelasticbands.Trialfitthetailplanebyslidingitfullyin
placeintothetailplaneslot.Alignit to thefuselageby checkingthemeasurementsshownthediagram.Usingthewingsas a
reference,checkthatitsitsperpendiculartothefuselagebyviewingfromtherear.
c=ci
19.1Trialfittingthetailplane19.2Tailplanealignmentmeasurements
BB1
20.Usinga felttippen,markontothetailplaneupperandlowersurfacesthefuselageshape.Removetailplanefromfuselage.
20.1Markingthefuselageshapeonto
thetailplaneuppersurface20.2....andontothelowersurface20.3Markedlinesontailplane

Trainer40Instructions
21.Usinga modellingknifeandrulercarefullycutthroughONLYthecoveringmaterialinsideofthemarkedlines.
Removethecoveringmaterialandcleanoffanytraceofpenmarks.
21.1Cuttingthroughonlythe
coveringmaterial21.2Coveringremovedfromupperand
lowersurfaces21.3Cleaningoffanytraceofpen
22.Mixsufficient30minuteepoxyand
applyplentytotheexposedupperand
lowersurfacesjustformed.Slidethe
tailplanebackintoplacewipingclearany
excessadhesive,includingwithinthefin
slg^Oncemorecheckthatthetailplaneis
afljwedtothefuselageandleavetocure.
22.1Onehourepoxyappliedtoboth
sidesofthetailplane22.2Cleaningoffexcessadhesive
23.Slidethefinintotheslotintherearofthefuselageabovethetailplane,checkingthatitisstandingperpendiculartothetailplane
by viewingfromtherear.Usinga felttippen,marktheshapeof thefuselageontobothsidesof thefin.Removethefinand,in a
similarwaytothetailplane,cutcarefullythroughONLYthecoveringmaterialinsideofthemarkedlines.Removecoveringmaterial.
231 Markingthefuselageshapeonto
£sidesofthefin23.2Cuttingthroughonlythe
coveringmaterial23.3Coveringremovedfrombothsides
ofthefin
24.Applyplentyof30minuteepoxytobothsidesoftheexposed lowerpartofthefinandslideitinplaceintothefuselage.Wipe
clearanyexcessadhesive,checkingoncemorethatit is alignedperpendicularto thetailplane.Leaveto cure.
24.130minuteepoxyappliedtoboth
sidesoffin24.2....andtotheundersideofthe
finstrake24.3Fininplaceandperpendicular

Trainer40Instructions
Fittingthefueltank
25.Identifythefueltankandits
hardware.Followingthediagrams
included,assemblethefueltank
ensuringthattheclunkisfreetomove
fromsidetosideandupanddown.This
willensurethatfuelisdelivered
totheengineregardlessofthemodel's
attitude.Tightenthebungscrewto
sealthefueltank.25.1Fueltankandclunkassembly25.2Sealingthefueltankbytightening
thebungscrew
26.Passthefueltankthroughthewingopeninginthefuselageandintothenoseofthemodel,theneckofthetankprotrudinginto
theopeningatthecentreofthemetalengine mount.Usingthefoampackingsuppliedwiththefueltank,supportthetankby
packingitaroundthetankbay.
26.1Passthetankintothefuselage
Installingtheengi
26.2Fueltankneckprotrudingthrough
enginemountformer26.3Supportthefueltankusingthe foampackingsupplied
27.WerecommendtheMDS40PRO
twostrokeengineforpoweringthe
Trainer40.Thispowerful,easytohandle,
quietenginewillgivemanyhoursof
troublefree,smoothrunning.
Identifytheenginemountinghardware
consistingoftwometalclamping
plates,fourmountingscrews,fourshake
proofwashersandeightnuts.27.1MDS40PROengineusedin
theprototype27.2Enginemountinghardware
28.Connecttoeachofthefueltankoutletsa 100mmlengthoffueltubing.Theirfreeendscanbetapedtothetopofthefuselage
tokeepthemtemporarilyoutoftheway.Withitscarburettorremoved,placetheengineintheenginemount.Theengine's
mountinglugsshouldsitoverthegripsmouldedintothemount.
28.1Fueltubingconnectedtofuel28.2Fueltubingfreeendstemporarily28.3MDS40PROengineinpositionon
tankoutletstapedoutofthewayenginemounts

Trainer40Instructions
29.Addtheclampingplatesandscrewstoeithersideoftheengine.Fromtheunderside,threadontothescrewsa shakeproof
washerandnut.Tightenthescrewsevenlysothattheclampingplatesarenotdistortedandensurethattheengineremainspointing
straight.Finally,addtheremainingnutstoeachofthescrewsandtighteninposition.
29.1Clampingplatesandscrews
inposition29.2Addingtheshakeproofwasher
andnut29.3Locknutsaddedandtightened
30.Theengine'sthrottleiscontrolledbythemovementofa pushrodlocatedinthefront,upperpartofthefuselage.Threadthe
pushrod'sZ bendintoa holeinthecarburettor'sthrottlearmand,followingtheenginemanufacturer'sinstructions,securethe
carburettortotheengine.Attachalsotheengine'ssilencer,ensuringtheholdingscrewsarewelltightened.Trimtolengthand
connectthefueltank'sclunktankoutlettotheengine^carburettorandthefueltank'supperventtothesilencer'spressurenipple.
T^remainingfueltankoutletisthefillingportandthetubingissimplysealedusinga suitablecleanscrew.
30.1AttachingthepushrodZ bendto
thethrottlearm30.2Securingtheengine'ssilencer
inplace30.3Connectingthefueltubingto theengine
31.Lookingfromtherearofthemodel,therudderhornisfittedonthelefthandsideof
therudderata positionapproximately25mmfromthebaseoftherudder.Holdthe
horninplaceontherudder,aligningthehornclevisholeswiththerudderhingecentre
lir^pbnddrillthroughthehornmountingholesintotherudderwitha 2mmdrill.Secure
thehorninpositionwithtwo11mmlongselftappingscrewswhichpassthroughthe
horn,intotherudderandintothehornbackingplate.
31.2Drillingtherudderforfixingscrews31.3Securingthehorntotherudder
usingtwoscrewsandbackingplate
31.1Rudderhornposition
31.4Positionhornholesinlinewith
controlsurfacehinge

Trainer40Instructions
32.Lookingfromtherearofthemodel,theelevatorhornisfittedontherighthandundersideoftheelevator.Itshouldbeheldata
distanceofapproximately20mmfromthecentreofthemodel,withthehornclevisholesalignedwiththeelevatorcentreline.Usinc
a2mmdrill,drilltheelevatorforthesecuringscrews.Securethehorninpositionina similarwaytotherudderhorn.
32.1Elevatorhornposition32.2Drillingtheelevatorfor
fixingscrews32.3Securingthehorntotheelevator
usingtwoscrewsandbackingplate
I
Installingthefuselageservo
33.Followingthemanufacturer'sinstructions,fittherubberservomountinggrommetsandbrassferrulessuppliedwiththeradio
equipmenttotheelevator,rudderandthrottleservosandremovethetwowoodenpushrodsfromthefuselage.Theservosare
mountedina plytraypre-installedinthefuselage.Observethephotographshowingtheservoarrangementandinstalltheserver^
intotheplywoodtray.Drill1.5mmpilotholesforthefoursecuringscrewssuppliedwitheachservoandscrewtheservosinplacer
33.1Arrangementofrudder,elevator
andthrottleservices33.2Installtheservos,allowingtheirleads
topassunderneaththetraytowardsthe
throttleservo
33.3Drill1,5mmpilotholesforthe
securingscrewsandscrewinplace
Installingtheelevatorpushrod
34.Locatetheslotfortheelevatorpushrod
(ontherighthandsideofthefuselage,
lookingfromtherear)andcutthroughand
removethecovering.Notethattheelevator
pushrodisthelongerofthetwowooden
pushrods.Insertthethreadedendofthe
pushrodthroughthefuselageopeningat
thewingposition,downintothefuselage
andoutthroughtheslot.34.1Cuttingthroughandremovingthe
coveringmaterialfromthepushrodslot34.2Threadedendofpushrodpassed
throughslot
35.Fita plasticcleviskeeperontoa clevisandscrewtheclevisontothepushrod.Opentheclevisandsnapitinplaceintothe
middleholeoftheelevatorhorn.
35.1Fittingcleviskeeperonto
aclevis35.2Threadingclevisontoend
ofpushrod35.3Clevissnappedintomiddleholeof
elevatorhorn

Trainer40Instructions
36.Centretheelevatorservobyswitchingontheradioequipmentwiththestickscentralisedandtrimleversatneutral.Switchoff
anddisconnecttheservo.Usinga 2mmdrill,openouttheholeina servoarmwhichcorrespondsapproximatelyto11mmfrom
centre.Trimoffanyunusedsidesofthearmandpositionitontheservoinlinewiththewidthofthefuselage.
36.1Openoutwitha 2mmdrillthehole
intheservoarmcorrespondingto11mm
fromcentre
36.2Usingsidecutters,cutoffany
unusedarms36.3Servoarminplacealignedwith
widthoffuselage
37.Withtheelevatorheldatneutral,mark
thewirewhereitpassesover
theholeintheservoarm.
37.1Elevatorheldattheneutralposition37.2Markthewirewhereitpassesover
theholeintheservoarm
38.Releasetheclevisfromthehorn
andpullthepushrodclearfromthe
fuselagea sufficientdistancetoallow
a90degreebendtobeformedatthe
markedposition.Cutoffanyexcess
wiretoleave6mmofpushrodafter
thebend.
38.190degreebendformedat
markedposition38.2Cutoffexcesswiretoleave 6mmofpushrodbeyondthebend
emovethearmfromtheelevatorservoandthreaditoverthebendformedonthepushrodfollowedbya swingkeeper,
snipingthekeeperintoplace.
39.1Servoarmthreadedontopushrod39.2Swingkeeperinplaceonpushrod39.3Swingkeepersnappedoverpushrod
40.Replacethearmontotheelevator
servo,securinginplacewiththe
radiomanufacturer'sscrew.Re-attach
theclevisandslidethecleviskeeper
closertothehorn.
40.1Servoarmsecuredinplacewith40.2Clevisreplacedandcleviskeeperin
manufacturer'sscrewfinalposition

Trainer40Instructions
I'-HUH
nstallingtherudderandnoselegpushr<
41.Locatetheslotfortherudderpushrod(onthetopfaceofthelefthandsideofthefuselage,lookingfromtherear)andcut
throughandremovethecovering.Insertthethreadedendofthepushrodthroughthefuselageopeningatthewingposition,down
intothefuselageandoutthroughtheslot.
41.1Cuttingthroughandremovingthe
coveringmaterialfromthepushrodslot41.2Locatethepushrodusinga loopof flexandpullitthroughtheopening41.3Threadedendofpushrodpassed outofslot
42.Threada plasticcleviskeeperontoa clevisandscrewtheclevisontothepushrod.Opentheclevisandsnapitinplaceintothe
middleholeoftherudderhorn.
42.1Threadingcleviskeeperontoa clevis42.2Threadingclevisontoendofpushrod42.3Clevissnappedintomiddleholeof
rudderhorn
43.Centretherudderservobyswitchingontheradioequipmentwiththestickscentralisedandtrimleversatneutral.Switchoffana
disconnecttheservo.Usinga 2mmdrill,openouttheholeina servoarmwhichcorrespondsapproximatelyto11mmfromcentre.
Notethataswellasoperatingtherudder,therudderservoalsocontrolsthesteerablenoseleg,utilisingtheoppositesideofthe
servoarmtodothis.Trimoffanyunusedsidesofthearmandpositionontheservoinlinewiththewidthofthefuselage.
43.1Openoutwitha 2mmdrillthehole
intheservoarmcorrespondingto11mm
fromcentre
43.2Usingsidecutters,cutoffany
unusedarms43.3Servoarminplacealignedwith
widthoffuselage
44.Withtherudderheldatneutral,mark
thewirewhereitpassesoverthe
holeintheservoarm.
44.1Rudderheldattheneutralposition44.2Markthewirewhereitpassesove
theholeintheservoarm

Trainer40Instructions
45.Releasetheclevisfromthehornand
pullthepushrodclearfromthefuselage
asufficientdistancetoallowa 90degree
bendtobeformedatthemarked
position.Cutoffanyexcesswireto
leave6mmofpushrodafterthebend.
45.190degreebendformedat
markedposition45.2Cutoffexcesswiretoleave
6mmofpushrodbeyondthebend
46.Removetheservoarm.Unscrewthegrubscrewfromthecentreofanadjustableconnectorandattachtheconnectortothe
rudderservoarmapproximately11mmfromthecentreandontheoppositesidetotherudderpushrod.Onlytightenthescrewinto
thefirstnutanamounttoallowtheconnectortofreelyrotateandthenapplya smalldropofmediumcyanoacrylateandaddthe
secondlocknutandtightenthetwonutstogether.Checkthattheconnectorisstillfreetorotateandreplacethecentralgrubscrew.
46.1Connectorillustration46.2Connectorfittedtorudder
controlhorn46.3Smalldropofmediumcyanoacrylate
appliedtogetherwithlocknut
47.Threadtherudderservoarmoverthebendformedontherudderpushrodfollowedbya swingkeeper,snappingthe
keeperintoplace.
47J Servoarmthreadedontopushrod
..#47.2Swingkeeperinplaceonpushrod47.3Swingkeepersnappedoverpushrod
48.Threadthesteerablenoseleg
pushrodthroughtheadjustable
connector,atthesametimereplacing
thearmontotherudderservo.Withthe
nosewheelheldcentred,markthe
pushrodat a position8mmbeyondthe
adjustableconnector.Removetheservo
armandcutthepushrodtothe
markedline.48.1Nosewheelheldcentred48.2Markingnoselegpushrodposition

Trainer40Instructions
49.Passthepushrodagainthroughtheconnectorandreplacethearmontotheservo,securinginplacewiththeradio
manufacturer'sscrew.Withthewheelheldcentred,tightenthegrubscrewoftheconnectorontothepushrod.Re-attachtherudder
clevisandslidethecleviskeeperclosertothehorn.
49.1Noselegpushrodthrough
connectorandsecuringservoarmin
placewithmanufacturer'sscrew
49.2Tighteningconnectorgrubscrew
withwheelcentred49.3Clevisreplacedandcleviskeeper
infinalposition
Installingthereceiverswitch
50.Formtheswitchoperatingarmfrom
oneofthediscardedpiecesofwire
pushrod.Benda 90degreebendof
approximately8mmlengthononeendof
thewire.Checkthefitofthewireinthe
holeintheswitchandifnecessaryopen
outtheholetosuit.
50.1Bendingthefirstbendoftheswitch
operatingwire50.2Openouttheholeintheswitchto suitthewire
51.Placethebackingplateoftheswitch
overtheremainingrectangularholeinthe
servotrayanduseittodrilltwo,2mm
holesfortheswitchmounting.Passthe
switchfromtheunderneathintothetray
hole,addthebackingplateandsecurein
placewiththetwoscrewssupplied.
Drilla suitableholefortheoperatingarm
wireinthefuselagesideinlinewiththe
switchside.
52.Ontheotherendofthewiremakea 45
degreebend,facingtowardstherearofthe
model,toforma grip.Passthewire
throughthefuselagesideandthreadthe90
degreebendintotheholeintheswitch.
Thewireispreventedfrombecoming
detachedbygluinga repairpieceofwood
ontothetray,allowingittorestagainstthe
wire.Ensuretheswitchoperates
smoothlyandthatitfollowsconventionby
arrangingtheoperatingarmtopushfor'on'
51.1Usingtheswitchbackingplateto
drillthetwomountingholes51.2Drillingfuselagesidefor^
operatingarminlinewithswitchside
52.145 degreebendformedon other
endofwire52.2Scrappieceofwoodgluedtotra
topreventtheoperatingarmbecomir
detached

Trainer40Instructions
Installingthethrottlepushr
53.Positionthethrottleservotorepresentmaximumthrottlebyswitchingontheradioequipmentwiththethrottlestickfully
upwardsandtrimleveratneutral.Checktoothattheservomovesinthecorrectdirectiontoclosethethrottle.Switchoffand
disconnectthethrottleservo.Preparethethrottleservoarmbyattachinga connector,ina similarwaytothenoselegarm,ata
distanceapproximately16mmfromcentre.Trimoffanyunusedarms.Pushthethrottleto fullyopen,threadtheconnectorontothe
pushrodandfitthearmontotheservoatapproximately45degreeangle,facingforwards.
53.1Throttlestickatmaximumpower
(Insetshowscorrespondingthrottleposition)53.2Throttleservoarmwithconnector
inplace53.3Servoarmat45degrees
54.Makea markonthepushrodwireapproximately8mmbeyondtheconnector,removethearmandcutthepushrodtothemark,
armbackinplaceontothepushrodandinthesamepositionontheservoandtightentheconnectorgrubscrew.Operatethe
tocheckthatwhenthethrottlestickisinthefullydownpositionthecarburettorthrottleisalmostclosedwithoutstallingthe
servo.Ifitisnotpossibletoreducetheservoarmmovementtopreventthishappeningusingthetransmitter,theconnectorwill
havetobemovedclosertotheservoarmscentreandtheprocessrepeated.Checkalsothat,bymovingthethrottlesticktrimlever
fullydownward,theenginesthrottlebecomescompletelyclosed,whichwillstoptheengine ifdesired.Finally,securetheservoarm
usingthemanufacturer'sscrew.
54.1Markingthrottlepushrodlength54.2Throttlestickatminimumpower54.3Throttleinclosedposition
Fittingthebattery,receivera
5Fia?'ugthereceiverbatteryintotheswitch
harass,wrapthebatteryinfoamfor
protectionandinstallitintothefuselagejust
behindthefueltank.Connectallthe
remainingleadsintothereceiver,wrapalso
*infoamforprotectionandinstallintothe
fuselagebetweenthefueltankandservo
tray.Thereceiveraerialshouldbeleadoutof
thereceiverina directrouteandtheaileron55.1Receiverwrappedinfoam
extensionleadandbatterychargingleadleftfornrotection
accessibleinthefrontofthefuselage.
55.2Receiverandbatteryinstalledin
frontoffuselage
56.Prepareanaerialpullstopbydrillingtwo2mmholesina pieceoftherepairwoodandthreadtheaerialintoit.Drilla 2mmholein
thefuselagesideclosetotherearwingdowelfortheaerialoutlet.Withthepullstopremainingontheinsideofthefuselage,lead
theaerialoutthroughthishole,leavingtheminimumofaerialbetweenthereceiverandpullstop.
56.1Aerialpullstop56.2Aerialthreadedthroughpullstop56.3Drillinga 2mmholefortheaerialoutlet

Trainer40Instructions
57.Cuta pieceoffueltubingto
approximately20mmlengthandpusha
safetypinthroughthecentreofthetubing.
Threadthefreeendoftheaerialdownthe
tubingbetweenthepinandpushthepin
intothetopofthefin.Pulltheaerialtight
andpushthepinfirmlyintothetubing.
\
\
57.1Safetypinpushedthroughtubing57.2Aerialthreadedintotubingand
pinnedtofin
Fittingthepropellerandspinner
58.Followingtheenginemanufacturer's
recommendations,choosea propeller
suitableforboththeengineandmodel
(typicallya 10X6witha 40sizetwo
strokeengine).Checkthebalanceofthe
propellerandifnecessarylightlysand
theheavybladetoachievea balance.
58.1Checkingpropellerbalance58.2Backplatelocationpegs
Pushthespinnerbackplateontotheengineshaftfollowedbythepropeller,washerandnut.Asthecompressionresistanceisfelt,it
willfeelmorenaturaltoflickthepropellerwiththebladetightenedinthe12o'clockposition.Beforetighteningthenutcheckthat
thetwopegsofthebackplatearerestingagainsttrailingedgeofthepropellerblade.Tightenthenutsecurely.
59.Fitthespinnerusingthetwoscrews
provided.Dependingonthemakeof
propeller,itmaybenecessarytotrim
thecutoutsinthespinnertoallow
thespinnertolocateintothebackplate.
Tightenthescrewssecurelyandcheck
thattheassemblyrotatestrue.
59.1Trimmingcutoutsinspinner59.2Tighteningspinnersecuringscrews
Trainer40flyinginstructions
PreFlight
BeforeflyingyourTrainer40,threeessentialchecksneedtobe
carriedout.Thesearebestdone,andcorrectedifnecessary,
beforearrivingattheflyingsite.Yourlocalclubinstructorshould
alsobeaskedtocarryoutthesechecksandwouldfindithelpful
tohavethismanualathandforreferencetocertaindimensions.
CheckNo.1 - Balancepoint
Inorderforthemodeltoflyina controlledfashionthemodel
mustbalancewiththefuselagehorizontalata point85mmback
fromtheleadingedgeofthewing.Thereceiverbatterycanbe
movedforwardsorrearwardstoachievethis.
CheckNo.2 - Controlsurfacemovements
Theamountofcontrolsurfacemovementalsohasaneffecton
thecontrolabilityofthemodel.Withthetransmittersticksatfull
defectionthecorrespondingcontrolsurfacemovementsshould
beadjustedtothedimensionsbelow,allmeasured atthetrailing
edgeofthecontrolsurface.
Ailerons6 mmup,6 mmdown
Elevator12mmup,12mmdown
Rudder25mmleft,25mmright
Equallyimportanttocheckisthedirectionofcontrolsurface
movements.Standingbehindthemodel,movethetransmitter
sticksandobservethesurfacemovements.Usethetransmitter
servoreversingfacilitytocorrectthemovementdirection.
AileronsStickright- LHailerondown,RHaileronup
Stickleft- LHaileronup,RHailerondown
ElevatorsStickback- elevatorup
Stickforward- elevatordown
RudderStickright- rudderright,nosewheelmovesright
Stickleft- rudderleft,nosewheelmovesleft
CheckNo.3 - Engine
Iftheengineisbrandnew,followtheenginemanufacturer's
startinginstructionsandruntheenginefora coupleoftanksof
fueltoensureitwilldeliveradequatepowerwithreliable
throttling.Alwaysbeawareofthedangerstoyourselfandother
personsfromtherotatingpropeller.Remainclearofthefrontof
thepropellerarconcetheengineisstartedandneverpointthe
modeltowardsotherpeople, animalsorproperty.
Flying
BeforeflyingyourmodelforthefirsttimeyouMUSTcheckthe
controlrangeofyourradiocontrolsystem.Starttheengineand

Trainer40Instructions
havea helperholdthemodelensuringthattheyareclearofthe
propeller.Retractthetransmitteraerialandwalkawaymoving
thecontrolsticksonthetransmitter.Runthemotortofull
powerandrepeatthemovements.Youshouldbeabletowalk
between25-30metreswithoutinterferenceorlosingcontrol.If
youlosecontrolortheradioappearstohaveinterferencedonot
attempttofly.Rectifytheproblemandrepeattheabove
procedureuntila satisfactoryresultisaccomplished.
ContacttheBritishModelFlyingAssociationon01162440028
fordetailsofyourlocalmodelflyingclub.
Choosea calm,brightdaytotestflyyourTrainer40.Itishighly
recommendedthatyourclubinstructorconductsthetestflight
andtrimsoutthemodelforyou,butifthisisnotpossible,and
theflyingsiterulesallowbeginnerstoflyunsupervised,follow
theinstructionsbelow.
Onsmoothground,placethemodelpointingintowind.Holdthe
modelwhilstyouruntheenginetomaximumpowerandmake
afinalcheckthatallthecontrolsoperatecorrectly.
^elevatoratneutralandwhenreadyopenthethrottle
smoothlyandpositivelyandtheTrainer40willaccelerate.A
smallamountofrightrudderwillbeneededtoholdthemodel
straightduringthetakeoff.Asthemodel'sspeedincreasesthe
modelwillbecomelight.Atthispointgentlyapplyupelevatorto
lifttheTrainer40 offtheground.Holdtheelevatormovement
andcontinueclimbing,keepingthewingslevelwithsmallinputs
ofaileron.Theruddercanbereturnedtoneutralforthe
remainderoftheflight.
Oncea comfortableheighthasbeenreached,entera turn
directionthatwilltakethemodelawayfromanyspectators.Use
onlysmallaileronandelevatorinputs.Flyawayfromyourselffor
ashortdistanceandturnagain,thistimeontoa downwind
heading.Themodelshouldbeclimbingsteadilythroughoutwith
ampleairspeed.Continuetoflydownwindandthenmake
anotherturntoflycrosswindbacktowardsyourself.Makeone
moreturnto alignthemodelbackintowindandpointing
towardsthetakeoffarea.Reducethethrottletoa cruise,
maintainingsufficientpowertoholdthemodel'sheightand
airspeed.Itislikelythatwiththeelevatorreturnedtoneutralthe
Tl^pllmaywanttosinkorclimbandthisshouldbecorrected
usingtheelevatortrimcontrol.Likewise,thewingsmaywant
tobankleftorrightwithneutralaileron.Again,thiscanbe
trimmedoutusingtheailerontrim.
Withthetrimminghavingtakenplaceduringthemodel'sinto
windflightyoucannowenteranotherturn,againina direction
awayfromanyspectators,andflyanothercircuit,adjustingthe
engine'sthrottletomaintaina constantheight.Thisisthe
correctwaytocontrolthemodelsaltitude,NOTbypullingor
pushingwiththeelevatorcontrol.
Rememberthatairspeed= safety!Flyingtooslowly,themodel
maystall(loselift)andcrash.
Itisgoodpracticetoflybothlefthandandrighthandturnsso
large,smoothfigureofeightturnsshouldbeattempted.Donot
allowthemodeltoflyanuncomfortabledistanceawayfromyou
ortodriftina directiontowardsspectators.Practiceclimbing
anddescendingusingtheengine throttleasa controlbutalways
leavingplentyofheightforrecovery,shoulditbenecessary.
Asyouperhapsarenowaware,modelflyingrequiresa three
dimensionalskill- butisveryrewardingonceaccomplished!
Toleaveamplefuelfora misjudgedapproach,aftersevenor
eightminutesofflyingentera landingcircuit.Dothisby
reducingthethrottleanddescendingdownwindparallelwiththe
takeoffareaata comfortabledistanceout.Turnthemodel
crosswindtowardsyoudescendinggradually,andturnonce
moreintoa positiondirectlyintowindandheadingtowardsthe
landingarea.Carefullyadjustthethrottleaimingtodescend the
modelontothelandingstrip,keepingthewingshorizontalwith
smallaileroninputs.Asthemodelcrossesoverthestrip,reduce
the.throttletoidleandallowthemodeltoglideontothe
approach.Neartotheground gentlyapplya smallamountofup
elevatortoraisethemodel'snose,slowingthemodelandflaring
out.Judgedcorrectly,themainwheelsshouldtouchtheground
justasthemodel'swingliftcannolongersupportthe
aircraft, themodellandingattheslowestpossibleairspeed.
Allowthemodeltocometorest,stoptheengine usingthe
throttletrim,switchoffthereceiverandtransmitter,andthen
takea well-earnedrest!
Withmoreflying,confidencewillgrowandtheTrainer40's
flightenvelopecanbefullyexplored.Slowflying,stallingand
recovery,loops,rolls,stallturns,invertedflightandmoreareall
possibleBUTonlytobeattemptedforthefirsttimewithplenty
ofheightasinsurance.
Tocaterfora naturalprogressionwithinthesphereofmodel
flying,Ripmaxsupplya widerangeofflyingmodelaircraftfrom
gliderstolargescalemodels,incorporatingbothkitandalmost
readyto flymodels.Checktheseoutat yourlocalmodelshop.
Congratulations,HappyandSafeFlying!

RipmaxPic,RipmaxCorner,
GreenStreet,
EnfieldEN37SJ
Email:[email protected]m
Tel:[phone]
Fax:[phone]
Website:www.ripmax.com