Dynaflite PT-19 User manual

TM
PT-19
•BUILDSQUICKLY
•REALISTICFUNSCALE MODEL
•HUGE,89" WINGSPAN(IMAALegal)
READTHROUGHTHISINSTRUCTIONMANUALFIRST.IT CONTAINS
IMPORTANT INSTRUCTIONS AND WARNINGS CONCERNING THE ASSEMBLY
AND USEOF THIS MODEL
WARRANTY
Dynafliteguaranteesthis kit tobefree from defects inbothmaterialand workmanship at thedateof
purchase. This warranty does not cover any component parts damaged byuse or modification. Inno
case shall Dynaflite's liabilityexceed the original cost of the purchased kit. Further,Dynaflite reserves
theright tochange or modify thiswarranty without notice. Inthat Dynaflite has nocontrol over the
final assembly ormaterial used for final assembly, noliability shall beassumed noraccepted for any
damage resulting from the use bythe user of the final user-assembled product. Bythe act of using
theuser-assembled product, the user accepts all resulting liability. Ifthebuyeris notprepared to
accept theliabilityassociated with the use of this product,returnthis kitimmediatelyinnewand
unusedconditiontotheplace ofpurchase.
©Copyright 1997PT19P03PrintedinUSA

Introduction ......................................................2
Precautions.......................................................3
Preparations.....................................................3
Required Accessories .......................................3
SuggestedSupplies .........................................3
Optional Accessories .......................................4
BuildingNotes.................................................4
Adhesives .......................................................4
Common Abbreviations....................................5
Types of Wood ................................................5
MetricConversion............................................5
DiePatterns ................................................6&7
Build the Fuselage ...............................................8
Build the Wing .....................................................12
BuildtheAilerons ...........................................................16
BuildtheStabilizer & Elevators ...........................17
BuildtheVertical Fin & Rudder .........................19
Mount the Wing to the Fuselage .........................20
FinalAssembly .................................................22
Finishing..........................................................26
Set TheControlThrows...................................27
Balance Your Model.......................................27
Preflight..................................................27
AtHome...............................................................27
At theFlying Site ...........................................28
Engine Safety Precautions................................28
FLYING.............................................................28
Finda Safe Place to Fly..................................28
Takeoff..........................................................29
Flight.........................................................29
Landing ........................................................29
Terms & Definitions ........................................30
Cockpit&WingTipPatterns...........CenterSpread
Congratulations onyourchoiceofthis kitfor your
next project.The Fairchild PT-19 isa FunScale®
modelof a true classic aircraft and has thepresence
thatonlya bigmodelcan carry off.
At Dynaflitewe take prideinoffering kitsthat are
simple and straight forward tobuild and provide
value for yourmodelingdollar.Because of the size
and cost of thismodel we assume you have built
severalmodelsandhavea generalworking
knowledgeof modelingand itsterms. Ifyou HAVE
NOTbuiltand flown several kits, doyourself a favor
andgetsomeexperiencebefore beginningthis kit.
Your PT-19 isnota toy,buta sophisticated working
modelthat functionslikea full-size airplane.Because
of its performance,if you do not assembleand
operatethePT-19 correctly,youcouldpossiblyinjure
yourselfor spectatorsanddamageproperty.
Tomake your R/C modeling experience totally
enjoyable,we recommendthatyougetassistance
withassemblyand your firstflightsfroman
experienced,knowledgeablemodeler.You'll learn
faster and avoid risk toyour modelbefore you're
trulyready to solo.Your local hobby shop has
information about flying clubs inyour area whose
membershipincludesqualifiedinstructors.
Youcan also contact thenationalAcademy of Model
Aeronautics (AMA), which has more than 2,300
chartered clubs across thecountry. We recommend
you join the AMA which will provide you with
insurance coverage at AMAclub sites and events.
AMA Membership isrequired at charteredclub
fields where qualified flight instructors are available.
Contact theAMAat theaddress ortoll-free phone
numberbelow.
Academy of ModelAeronautics
5151 East MemorialDrive
Muncie,IN47302
[phone]
Fax[phone]
2

1.You must assemble the planeaccording to the
instructions. Donot alter or modify themodel, as
doing so mayresult inan unsafe orunflyable model.
Ina few cases the instructions may differ slightly
fromthe photos or plan. Inthoseinstancesthe
written instructions shouldbeaccepted as correct.
2.Youmusttaketimetobuildstraight,trueandstrong.
These are theitems"notincluded"with yourkit,that
you will need to purchaseseparately. Items in
parentheses(GPMQ3141)aresuggestedpart
numbers recognizedbydistributorsand hobby
shops and are listedfor yourordering convenience.
GPMis the Great Planes® brand, TOP is the Top
Flite® brand and HCA is the Hobbico® brand.
3.Youmust installallR/C and othercomponentsso
that themodeloperatesproperlyonthegroundand
intheair.
4.Youmusttesttheoperationofthemodelbeforethe
firstand each successiveflightto insurethatall
equipment operates correctly. You must also make
certainthatthemodelhasremainedstructurallysound.
NOTE:We,as the kit manufacturer, can provide
youwith a quality kit and greatinstructions, but
ultimatelythequality and flyabilityof yourfinished
modeldependsonhowyouassemble it;therefore,
we cannot inanyway guarantee theperformance
of yourcompletedmodeland norepresentations
are expressed orimpliedas tothe performance or
safety of your completedmodel.
4channel radiowith 3 standard,2 hightorque
and onequarterscale servo.
Engine- 1.08to 1.52-stroke or1.2to1.6
4-stroke
Engine mountandmounting hardware
16oz.Fueltank(GPMQ4107)
Standard fueltubing(GPMQ4131)
(2) 5" to6" main wheels
(1)1-1/2"tail wheel (GPMQ4243)
(4) 1/4" Wheel collars (DUBQ1200)
(2) 1/8" Wheel collars (GPMQ4304)
TopFlite® MonoKote®covering film (4 rolls)
or Coverite™21 st Century® Fabric
Paint for fuelproofing, theenginecowl and
thewindshields
(1)OR(2)1/3 Scalepilot(s)
1/4" LatexFoamRubber(HCAQ1000)
These are theadhesives and supplies that you will
need to build your Pt-19.We recommend Great
PlanesPro™CA andEpoxy
Please inventory and inspect allparts carefully
beforestartingtobuild!Ifany partsare missing,
brokenordefective orifyouhaveany questions
aboutbuildingorflyingthismodel,pleasecallusat
[phone]andwe'll begladtohelp.Ifyouare
callingfor replacement parts, pleaselookupthe
partnumbersandhavethemreadywhencalling.
4oz.Thin CA Adhesive - (GPMR6004)
2oz.Thick CA Adhesive - (GPMR6015)
CA Accelerator - (HCAR3750)
CA Applicator Tips - (HCAR3780)
6-MinuteEpoxy- (GPMR6045)
30-MinuteEpoxy- (GPMR6047)
4oz.Aliphatic Resin Glue(GPMR6161)
3

Aflat, durable, easy-to-handle sanding tool is a
necessityfor buildingmodelairplanes.GreatPlanes
makesa completerangeofEasy-Touch'"BarSanders
andreplaceableEasy-Touchadhesive-backed
sandpaper. Onourworkbench, we have four 11"
Easy-Touch Bar Sanders, equippedwith #50, #80,
#150 and#220-grit sandpaper.Thissetupisallthatis
requiredfor almostanysandingtask. Customsanding
blockscan bemadefrom balsaforsandinghard-to-
reachspots.We alsokeepsome#320-grit wet-or-dry
sandpaperfor finish sandingbeforecovering.
Forfuturereference,here's a list of Easy-Touch Bar
Sandersandadhesive-backedsandpaper:
5-1/2" BarSander (GPMR6169)
11"BarSander(GPMR6170)
22"BarSander(GPMR6172)
12'Rollofadhesive-backed sandpaper,
80-grit (GPMR6180)
150-grit(GPMR6183)
220-grit (GPMR6185)
Assortment pack of 5-1/2" strips (GPMR6189)
IMPORTANT:Duringconstructionyouwillbeusinga
numberof balsasticks toframe various assemblies.
Ample material is includedbutyoushouldstudythe
plans,then make an effort tocut the longestpieces
youwill needfirst. Labelthepiecesas youcut them
for later reference. Bydoing this now,youwon't
havetosplice piecestogetherlater.
Thiskitisbuiltwiththreetypesof glue.
Cyanoacrylate:CAgluescure almost instantaneously
and aremoderately strong.Thereare different
viscosities of CA's intendedfor different conditions
youwill encounterwhenyoubuild.ThinCA isgreat
for "tack-gluing,"for gluejoints that fit wellandfor
partsthatarealreadyjoinedbut need to be
permanentlybonded.MediumCA isusedfor general
construction where youapplygluetoonepart,then
join ittoanotherpart. Thick CA isgreatfor gluejoints
that don't fit perfectlyorparts that requirea littletime
forpositioningbeforethe gluecures.You will
encountermanyotherconditionsthat requireoneor
theothertypesof CA.
Robart Oleolanding gearstruts (ROBQ1600)
Midwestscale instrument panel(MIDQ1105)
Always useCA ina well ventilatedarea. Opensome
windows or placea fan intheroomtocirculate the
air.Donotleandirectly over yourwork when you
useCA and lookaway while itcures or"setsoff."
CA can cure immediatelyuponcontact with skin so
if you accidentally bond your fingers, do notuse
vigorous motiontoseparate them. UseCA Debonder
(GPMR6039) or acetone (nail polish remover) or
soak yourfingers inwarm water for a few minutes.
4

Neverpointthetipof a CA bottletoward yourface
and beespeciallycareful when you uncloga CA tip.
HobbicoCA Applicator Tips (HCAR3780) arehighly
recommended and will help keep the bottle from
clogging. Keeppapertowels or tissues close byto
immediately absorb excess CA dropped on your
modelorwork area. Readallthewarninglabelson
yourCA bottle.CA Accelerator is a chemical that
you can spray over uncured CA to make itcure
immediately.A mist spray of accelerator willdothe
job.Donot inhalethe vapors!Some modelers
"preprime" theparts to begluedwith accelerator,
jointhem, then add the CA. Thisway the CA is
guaranteed tocure immediately.This prepriming is
especially handywhen you use thin CA because it
willcure beforeall of thegluesoaks intothewood
away from the glue joint.We do notrecommend
you buildyour entire model with this method and
useacceleratoronlywhennecessary.Often,
overspray from accelerator usedhours orevendays
earlier onnearbygluejoints will cause theCA you
useon thenextstepto cureprematurelyand
unexpectedly- sobecareful!
AliphaticResin- Resin glues require that parts be
pinned or clamped together while the glue dries/-
typically 15-30minutes.Resinglues arevery
strong and workwell with balsa and plywoods.
Epoxy- Epoxygluesarethestrongestbutrequirethe
most time to cure. Six-minute epoxycures thefastest;
itsets within six minutes butis notfully cured for one
hourormore.Thirty-minuteepoxyisthestrongestas
itallows the epoxytosoak intothewood thoroughly.
While it sets within 30 minutes, it will notbefully
curedfor two ormorehours.
InchScale
Fuse= Fuselage
Ply= Plywood
"= Inches
Stab =HorizontalStabilizer
LE=Leadingedge(front)
TE= Trailingedge(rear)
BalsaBasswoodPlywood
Metric Scale
5

DIEPATTERNS
6

DIEPATTERNS
7

1.Placethefuselagedrawingonyourworkbench
andcoveritwithwax paperfrombulkheadD aft. Begin
constructionbybuildingtherightrearsidestructure.
2. Usingtwo 1 /4" x 15/16" x 42" balsasticks,
cut and fitthe rear side stringers. Cut the longest
piecesfirst.Pinandgluethepartsintoposition.
3.Cutthediagonalsfroma 1/4"x 1/2"x 30"
balsastickandglueintoposition.
6.Place the right fuselage side over the plans
andmark thelocations of bulkheads B,C,D,E,F,
and G ontheside. Place theleft side overtheright
and transfer the marks totheleft side.Next,mark
each former at thecenterof thebottomedge. Place
the fuselage planon your buildingboardand draw
aline down thelengthofthe plansalong the
fuselage center witha long straightedge. These
marks and lines will beusedtoalignthefuselage in
thefollowing steps.
7.Gluebulkheads D and E to theright fuselage
side using 6-minute epoxy.Besure the bulkheads
are at a 90degree angle to the side. Epoxy will
produce thestrongest joint butyou can usethin CA
withaccelerator ifyouare ina hurry.
4.Fittheplyfuselage front tothefuse rear.Cut
doublersfor thetwo joints from a 1 /8" x 1 /4" x 30"
balsa stick. Whensatisfiedwiththefit,gluethemwith
6-minute epoxy.
5.The left fuselage side is builtoverthe right
side.Remove the right side from your buildingboard
and turn itover.Usethe leftover 1 /8"x 1 /4"stick to
shim theforward plyside. Cover the side with wax
paper.Followsteps 2,3 and 4 to buildtheleft side,
aligningthepartsovertherightside.
8.Gluetheleftfuselageside tobulkheadsD andE
using6-minuteepoxy.Alignthesidewiththemarks
8

youmadeearlier.Beforethegluecures,sightacross
thetopofbothsidestodoublecheckthealignment.
9. SlipbulkheadB overtheoutsideof the
fuselage. DoNOTglueuntilthenextstep.
12. GluebulkheadC to thefuselage sides with
6-minute epoxy.Thebulkhead is slightly large so as
nottobindon thesides. Use leftover 1/8" x 1/4"
balsa sticksto reinforce the bulkhead/fuselage joint
as shown inthephoto.The 1/8" x 1/4" stick above
the lower deck is gluedto thefront of thebulkhead.
The stick belowthelowerdeck isgluedtotheaftside
of thebulkheadandINSIDEthefuselage.
13. Build bulkheads F and G overthefuselage
drawingusing leftover1/4"x 1/2" balsasticks.
14.Pullthetail togetherandholditinposition
with clothespins. DoNOTglueuntillater.
10.Gluethe topand bottomdeck intoposition
with 30-minute epoxy.Also gluebulkhead B to the
fuselagesides andbothdecks with30-minute epoxy.
Eachdeckspans from thefirewall back tobulkhead
D.Therear of thelowerdeckisinstalled 9/16" up
from thebottomof bulkheadD.Usemasking tapeas
neededtoholdtheassembly togetherwhiletheepoxy
cures.30-minuteepoxyisusedtogiveenoughtimeto
positionthepartsandalsoforstrength.
11. Gluethe doubler tobulkhead C using the
bottomcurves toalignthedoubter.
Usethisphotofor thenextfoursteps.
15.Lightlysand thesides of bulkheads F andG
tomatch the taper of the sides. Install them inthe
sides and holdthem inpositionwith pins.DoNOT
glueuntillater.
16.Placethe fuselage uprightoverthe fuselage
drawing. Align the center mark oneach bulkhead
with the line you drew down the plan earlier. You
will needtosightdown from abovethe fuselage as it
willnotrestflat onthedrawing. Adjust thetail,as
9

needed,to getthe centerof each bulkheadtoalign
properly.When you are satisfied that everything is
aligned properly, glue the tail together.Also glue
bulkheadF andG tothe fuselage sides.
17.Gluethe top plypart of bulkheads F and G
intoposition. Notethat the toppart of F goes infront
of thelowerpart of F.Therear of the toppart of G
goes1/2" in front of thelowerpart of G.
18.Cutthree1 /4" x 1 /2" x 24" balsastickstoa
length of19".Glue thesetop rearstringersto
bulkheads E,F andG.
21.Use leftover 1/4" x 1/2"balsa sticksto
frame betweenthe bottomstringers at bulkhead E.
Just tack gluethem intoposition at this time as you
mayneedtoadjust them whenthewing is fitted.
19.Notch the bottomstringers toaccept the die-
cut 1/8" plytailwheel plate. The correct position for
the bracket willallow the 1/4" x 1/2" stringers,
added inthe next step, to extend 1 /4" belowthe
bottomof the1/4" x 15/16"side stringers. When
satisfiedwiththe fitglue the die-cutplate into
positionwith6-minute epoxy.
20.Cuttwo 1/4"x 1/2"x 30"balsasticks toa
lengthof28-1/2".Fitandgluethesebottom
stringers intoposition. Youwill needtonotchthemat
bulkheads F and G.Theyshould extend1/4" below
the1/4" x 15/16" side stringers. You can letthem
extend into the area where the tailwheel plate is
mountedifdesired.
22. Gluethe 1 /4" plywing holddown plate into
placewith6-minuteepoxy. Use some leftover
1/4" x 3/8" basswood sticks toreinforce above the
plyplate.
23. Roll the fuselage over and glue Bulkheads
B-1and D-1into place.Bulkhead B-1is glued
3-1/16"behind Bulkhead B and bulkhead D-1
glued2" behindbulkhead D.
is
24. Cutandgluethestringers betweenbulkheads
Band B-1 andbetweenbulkheads D and D-1. Use
leftover 1/4"x 1/2" balsasticks.
10

25. Use1/8" x 3" x 24" balsa to sheet between
bulkheads B and C,from thetopdeckdown.Soak
theoutside of thesheetingwith water as neededto
getittobendaroundthecurves. Thin CAworkswell
ondamp balsa.
26. Use a leftover piece of 1/8" x 1/4" balsa
stick to make a filler wedge between bulkheads C
andD.Blendthe stick from C toD.This creates a
ledge, towhich the topsheeting isglued.
cuttingthesheetingtolengthas theleftoverwillbe
used in the next step. You willhave to soak the
sheeting with water to get itto bend properly. A
small amount of ammonia or50%alcohol addedto
the water willhelp tosoften the wood fibers.Be
patient,thebest time to dothebendingis when the
balsa starts todry to a damp state. After the side
sheeting strips are glued intoposition, cut a rough
cockpit opening as shown inthe photo.This opening
will relieve some of the stress in the sheeting and
allowitto dryin thepropershape.Thereisa
pattern for theexact opening inthe center of this
manual. Donotgluethecenter strip untilstep 29.
—I28. Sheet between bulkheads D and E using the
leftover 1/8" x 3" balsa sheetingfrom above,just as
you didinthepreviousstep.
29.Fitand gluethecenterstripof sheeting.
27. Caution- carefullyreadand understandthis
entirestepbeforeproceeding!Use1/8" x 3" x 24"
balsa tosheet thefuselage topfrom bulkhead B to.
This will be done with threestrips. Be careful when
30. Use 1/8"x 3"x 24" balsa tosheet from
bulkhead E toG.Thisisa compound curve sogo
slowly and be patient. Itwon'tbe ashard as it
seems.Just besure thebalsasheeting is wellsoaked.
11

31.Gluethe1/4" x 1/2" x 42" balsastringers
tothefuselage sides.
Setthefuselageasideuntillater.Itwillbecompleted
after the wing and stabilizer are built.
Ifyouhavenotdonesoalready,nowisa goodtime
toobtain a mount for your engine. Ifyou will be
using a two orfour stroke engine a Great Planes
60-120 mount (GPMG1091) will work well. Ifyou
willbe usinga chainsawtype engineyou will
probablyneeda spacer behindthemount.
3.Pinthe 1 /4" x 3/8" x 42" basswoodlower
spar over theplan.
4.Pinthe3/8" x 1/2"x 42" balsastick on
the dashed lines called "shim stick." This will hold
the rearof the ribs at theproperangleuntilthereare
enough pieces toholdthewing rigid.
5.Punch the ribs from their die-cut sheets,
sanding the backs lightly if they do not come out
easily.Numbereachribas youdoso;don't forget to
numbertheaileronribs as well.Check thefit ofthe
spartothesparnotchesineachrib.
1.Lay the RIGHT WING PLAN on your
building boardand cover itwith wax paper.
2. Preparea leadingedgeskin.Locateone
pieceof 3/32" x 3"x 42" balsasheetandonepiece
of 3/32" x 3" x 36" balsasheet.Jointhemtogether
sothattheends are evenwitheach otherononeside.
Form a skin using your favoritemethod (we use
masking tapetoform a hingeandthenjoin themwith
aliphaticresinglue).Sandthebestsidesmoothwith
150-grit sandpaper. Position the skin on the plan
aligningtheaft edgewiththecenterof thespar.Mark
thefront of theleadingedgeontheskin at therootrib
(W1) andthe tiprib(W11). Usea longstraightedge
totrimtheexcess sheetingfrom theskin. Leave1/4"
extratoallowforthecurvature of theribs.Setthis skin
asideforuse later.Savethepiecethat was trimmed
off for theotherwing panelanduseitinplaceofthe
second3/32" x 3" x 26" sheet.
6.Gluethe 1/8" die-cut plylanding gear
doublers toribsW2, W3 and W4 using 30-minute
epoxy.Gluethem tothesides shown on theplans.
There are two doublers for W2. The one with the
longcutout isgluedtotheside facing the wing tip.
This cutout will lock inthelandinggearstub (torque)
block. Check the fit of the landinggearblockand
stub blockintheircutouts.
12

11. Gluethe1 /4" x 3/4" x 42" balsaleading
edgesticktothefrontof theribs.Alignthetopofthe
7.GlueribsW2-W11 intoplace onthelower
spar with a dropofCA.Pintherearof eachribto
theshim stick.
8. Use the dihedral gauge to obtain the
proper angle (6 degrees) of W1.Glue W1 into
placeonthelowerspar.Pin therear of W1 tothe
shim stock. Usea longstraightedge toinsure that
W1 isflat.
9.Gluethe1 /4" x 3/8" x 42"basswoodtop
spar totheribs.
10.Cut a 3/8" x 3/4" x 24" balsa stick tothe
correct lengthand glueitto therear of W7-W10.
The ends are gluedtoW6 and W11. Gluethetop
flushwith thetopedgesof theribs.
LEevenwiththe tops of theribs. Use a longmetal
straightedgetogettheLEasstraightaspossible.
IMPORTANT:Use a straightedge along the sides of
W1 andW11 toinsurethattheyarestraightandflat.
12. Gluethe3/32" x 3" x 24" balsa lower
trailing edge sheet to ribs W1 -W6 using aliphatic
resin. Usea longstraightedge toinsure that theribs
areevenand straightand thatW1 remains flat.
13. Usea 3/32" x 4" x 30" balsa sheet to
preparetheshearwebs.Thereiswebbingfrom W2 to
W11 gluedtothefrontof thespars andfrom W2 to
W7gluedtotherearof thespars. Startwiththeribs
that are spaced the widest first. Trim and sand the
sheettofitbetweenthetwo ribs.Sandthebottomedge
of thesheettofit theangleofthelowerspar,thenmark
and cutthe sheet to the proper height. Continue
trimming,sandingandcuttingthesheetfor allof the
webbing. Besure to remove any pins that will be
hiddenbythewebbingbeforegluingitintoposition.
NOTE:Thesheetingprovided is ampleto prepare all
ofthewebs,but thereis noextramaterialso
workcarefully.
14. Prepare the 3/8" x 3/4" TE that you
installed instep 10for sheeting. Carve and sand the
TE toblendwith the topof ribs W6-W11. Ifyou are
not a carefulsander you may wantto put some
masking tape on the tops of the ribs so thatyou
won'talter theirshape.
15.Gluethe3/32" x 15/16" x 24" TEsheet
totheTE and ribs using aliphatic resin. Notethat the
sheetingextendstoW5 andistrimmedat anangle.
13

16. Prepare the 1/4" x 3/4"LEthat you
installed instep11 for sheeting.Carve and sand the
LEtoblendwith the tops of the ribs. Use masking
tapeontheribssothatyoudon't altertheirshape.
17.Glue the leading edge skinthat you
preparedinstep2 tothetopspar,ribsandLEusing
aliphaticresin.
18. After thegluehasfullydried, removethe
wing from thebuildingboard.
19.Carve andsand theTEandLEtoblend
with the bottomof the ribs as you didinsteps14
and16.
20.TrimtheLEandTE sheeting and thespars
evenwith ribsW1 andW11.
23. Fitand glue the 1/8" die-cut plywebs to
the front of the landing gear rail using 30-minute
epoxy.The webs should fit tightlybetweentheribs,
sheeting and landinggearrail.
24. Usinga 1 /4" bit,drilla holethrough the
landing gear block intothe stub block. Radius the
topof theholetofit thebendinthe1/4" landing
gearwire.
25.Using the5/8" x 2" x 8" balsablock,cut
and fit theTE filler block between W1 and W2. Glue
the block into place with medium CA. Carve and
sandtheblocktothecontourof theribs.
21.Gluethe landinggearstub block toW2
using 30-minute epoxy.The blockfits intothelong
cutoutinthe1/8" plydoubler.
22. Checkthefit of the landinggearblock in
ribsW2, W3 and W4. When satisfied with thefit,
glueitinplacewith 30-minuteepoxy.
26. Prepare the trailing edge for sheeting.
Taperthetrailingedgeof the3/32" x 3" sheetthat
was installedinstep12 toblendwith thecontourof
theribsfrom W1 toW6. Usea 3/32" x 3" x 24"
sheet tosheet thetopof the trailing edge.Trim the
sheettofit the3/32" x 15/16" sheetinstalledinstep
15. Gluethesheetinplacewithaliphaticresin. Usea
longT-bar sanderandweightstoalignthe ribsand
holdtherearofthewingflattothebuildingboard.
14

27.After the gluehas dried,turn the wing
overand fitand gluea 3/32" x 15/16"x 24" sheet
to the trailingedge between W5 and W11with
aliphatic resin. You will havetotrim the3/32" x 3"
sheetinstalledinstep12.
28. Trim theLEandTE sheeting evenwith ribs
W1 and W11.Sand thetipand rootof thewing so
thatitis smoothandflat.
29.Preparethewingtip for sheeting. Fit and
gluethe 1 /8"die-cut balsa stiffeners toW11. The
smaller stiffener should bepositioned so that thetop
andbottomof thestiffener are flush with the topand
bottomedgesof ribW11.The larger stiffener should
be flushwith the bottom of the rib and the top
surface of the topspar. Use a longstraightedge to
check that thetop edgeof thestiffeners are parallel
tothetop surface of thewing.
30.Cut thewing tippatternfrom thecenterof
this manual. Use the soft 1/8"x 3"x 36"balsa
sheettocut thepieces for the wing tipto match the
pattern,notingthegrain direction. Gluethepieces
togetherandsand bothsurfaces flat andsmooth.
31. Fitand gluethe tipto thebottomof W11
and the stiffeners. Fit and glue a filler block from
leftoverbalsatothewing tip at theleadingedge.
32. Cover the tops of ribs W7-W11 with
masking tape.Use a longT-bar sander to sand the
topof the wing tip so that itis parallelto the top
surface of thewing. Seesection A-A onthe plans
for clarification.
33. Sheet the top of the wing tipusing a
3/32" x 3" x 30" balsasheet.
34. Buildthe servo mounts betweenribs W6
and W7. Fit and glue the 1/8"x 1/2"x 4" ply
servo rails. Space therails to fit the servo you will be
using.Sheetthearea around theservo using leftover
3/32"x 3"so the covering will have a place
toadhere.
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35.Buildtheleftwing panel.
36. Prepare the wing panelsforjoiningby
cuttinga 1/16" wide slot infront of and behindthe
sparsonW1 as shown inthephoto.
39.Measurethedistanceundertheleftwingtip
at the bottomof ribW11.Ifitis 8-3/4"you have
exactly 6 degreesof dihedral ineach panel.Don't
beconcerned ifitis a littleoff as thedihedral angle
is notat all critical. Ifitis off bymore than 1 /2" you
mightwant tofind outwhy,butyou don'treallyneed
tofix it.When youare satisfied, glue thedihedral
braces totheleftwing panelwith 30-minute epoxy.
40.Using3/32" x 3" x 36" balsa, sheet thetop
center of the wing from W3 to W3. The strength of
thecenter section is important so we recommend that
youusealiphatic resin.Noteinthephotothat we
used one continuous piece across the entire center
section. Thisgreatly increases the strength of the
joint, butitisa bithardertoinstall this way.
37.Test fit the 1/16"ply dihedral braces tothe
wing panels. Notethat the shorter plybrace goeson
theforward side of the spars. When satisfied with
thefit, glue the braces to the right wing panelwith
30-minute epoxy.Remove the left paneland clean
off anyepoxythat seepedoutfrom thejoint.
38.After theepoxyhascured,slide the left panel
back intoposition.Positiontheright panelflatonyour
buildingboardand propthelefttipoff thebuilding
board.Don'tyouwishyoursurfacewas longer!!
1.Cover the rightwing panelwith wax paper.
Cut the lowerLEsheet from a 3/32" x 1/2" x24"
balsastick and pinittotheplan.
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2. Cut the lowerTE sheet from a 3/32" x
3/4" x 24" balsastick andpinittotheplan.
3.CuttheLEfrom a 1 /4" x 3/4" x 24" balsa
stick.Glueandpinittothe3/32" x 1/2" LEsheet.
4.Glueribs6-11intoplace.
I5.Cut and gluetwo 1 /4" x 3/4" doubler
sticks where theaileronhornwillmount.
6.Cut and glue hinge blocks into position
from a 1/2" x 5/8" x 24" balsastick.
7.Removetheaileron from the plan.Carve
and sand thetopof theLEtomatch thetaperof the
ribs. Taper theTE as well.Becareful as itis easyto
sand intotheribs.
8. Gluethetop3/32" x 1/2" LEintoplace.
9.Gluethetop3/32" x 3/4" TE intoplace.
I10.Fitand glue cap strips tothe topand
bottom of the aileron using 3/32"x 1/4" x 30"
balsasticks.
11.Sand the aileron to fit thewing.Markthe
centerline ofthe aileron leadingedgealongitsentire
length. Using the crosssection on the plans as a
reference, sand the leadingedgetothe"V"shape
shown.Makesure the"V"islargeenough toallow
for thefullupanddownmovementof theaileron.
NOTE:DonotbeveltheTE of thewingtothe"V"
shapeshown ontheplan(thiswas drawn inerror.)
12. Repeat steps 1 - 11to build the left aileron.
13.Cutsix additional hingeblocks from the1/2"
x5/8" balsa stick. Gluethese intopositionalongthe
insideedge of the TE of the wingopposite the
positionoftheblocks intheaileron.
1.Cutthestabilizer drawing from thewing plan
andplaceitonyourbuildingboard.Covertheplan
withwax paper.
2.Cutthetrailingedgefrom 1/2" x 15/16" x 36"
balsaandpinitinplaceovertheplan.
3.Cutbothleadingedgesfrom1/2"x 15/16"x 36"
balsaandsetthemaside.
4. Cut the tipsfrom leftover 1/2" x 15/16"
balsa.Glueandpintheminplace.
5.Glueandpintheleadingedgesinplace.
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11. Cuttheelevatortipsfrom 5/8" x 15/16" x 6"
balsa.Glueandpinthemintoposition.
12. Glueand pintheshaped balsaelevator roots
intoposition.
6.Cutand fit theribs from 1/8" x 1/2" x 30"
balsa.Cutthelongerribs first. Whensatisfied with
thefit,gluethem intoposition.
NOTE:Itisimportant that the ribs fitthe LEand
TEwell.Itis notimportantthat each ribfit the exact
locationshownontheplan.
7.Removethestab from theplanandroughsand
ittotheshapeshowninthecross section.
8.Markthecenterlineof thestab onthebackof
the TE. Place a mark 5/8"on both sidesof the
centerline.Place another set of marks 15" onboth
sides of the centerline. These marks will be used to
positiontheelevators.
9.Sheetthestab with1/16" x 3" x 30"balsaon
boththetopand bottom.Dothis with thestab flat on
yourbuildingboardand usecarenottotwistitas
yougluethesheetingintoplace.
13. Cutsomeshimsfrom3/16" x 3/8" x 24"balsa
andplacetheminpositionovertheplanattheTE.
14.Cutthetrailingedgesfrom 1/4" x 3/4" x 30"
balsa. Glue and pinthem into position on topof
theshims.
10.Build bothelevatorsat thesame time. Cutthe
leadingedges from 5/8"x 1/2" x 36" balsa and
pinthem to the plans. The leftover 5/8"x 1/2"
balsawill beusedlater toshimthestabwhenitis
mountedtothefuselage.
15.Cut and fit theribs from 1/8" x 5/8" x 30"
balsa. Cut the longerribs first. When satisfied with
the fit, gluethem intoposition.
NOTE:Itisimportant that the ribs fit the LEand
TE well.Itis notimportant thateach ribfittheexact
locationshown ontheplan.
16.Removetheelevatorsfrom theplanandrough
sandthemtotheshapeshowninthecrosssection.
17.Tack gluetheelevatorstothestabusing the
referencemarksyoumadepreviously.
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LI18. Cut the tipshapefrom the planand position
itoverthe stabilizer.Usethe15" marks, LEand TE
as a guide.Cutthestab and elevator tips toshape.
1 19.Sandtheassemblytoitsfinalshape.
20.Separatetheelevatorsfrom thestab.Sand
thetrailing edge of thestabilizer flat.Donotsand it
tothe"V"shapeshown on theplan.
21. Markthe centerline of the elevator leading
edges along their entirelength. Using the cross
section onthe plans as a reference, sand theleading
edges tothe "V" shape shown. Makesure the"V"is
enoughto allow for thefullupand downmovement
oftheelevators.
3. Cutthefinpost(trailingedge)from
3/8" x 15/16" x 30"balsaand pinitinposition.
4.Cutthefin basefromthe3/8" x 15/16" x 30"
balsaandpin it intoposition.Glue allthree
piecestogether.
5.Cutand fit the ribsfrom 3/16" x 3/8" x 24"
balsa.Cutthelongerribs first. When satisfied with
thefit,gluethem intoposition.
NOTE:Itisimportant that theribsfit theLEand TE
well. Itisnotimportant that each ribfit theexact
locationshownontheplan.
6.Removethefin from theplanandroughsand
ittotheshape shown inthecross section.
7.Sheetthefin with1/16" x 3" x 30"balsaon
bothsides. Dothis with thefin flat onyourbuilding
board and usecare nottotwist itas you gluethe
sheetingintoplace.
1.Coverthefin/rudderdrawingwith wax paper.
2. Cutthefinleadingedgefrom3/8" x 15/16"x 30"
balsaandpinitinplaceovertheplan.
8.Cuttherudderleadingedgefrom
1/2"x 15/16" x 36" balsaand pinittotheplans.
9.Cut the balance tab to shape from leftover
1/2" x 15/16" balsa.Glueand pinitintoposition.
1 10.Laminatethefour die-cut rudderbasepieces
together with medium CA. Sandtheedgesflat and
glueitintoposition.
LI11. Thetrailingedgeisbuiltupfrom four 3/32"
die-cut pieces to create one 3/16"thickpiece.
Laminate the partstogether usingthe plan as
areference.
19

12. Buildthree shims from leftover3/32" and
1/16" balsa tocreate 5/32" thick shims. Placethe
shims intopositionovertheplanand thenglueand
pintheTEintoposition.
13.Cutandfit the ribs from 3/16" x 1 /2" x 30"
balsa.Cut the longerribs first. When satisfied with
thefit,gluethemintoposition.
NOTE:Itisimportant thattheribsfit theLEandTE
well.Itis notimportant that each ribfit theexact
locationshown ontheplan.
14.Removetherudderfromtheplanandrough
sandittotheshape shown inthecross section.
15.Tackgluetheruddertothefin.
16. Sandtheassemblytoitsfinal shape.
17.Separatetherudderfrom thefin. Sand the
trailing edgeof the fin flat as shown onthe cross
sectionof theplan.
18. Markthe centerline of the rudderleading
edgealong itsentirelength.Using thecross section
ontheplans as a reference,sand the leading edge
to the "V" shapeshown. Make surethe "V" is
enoughto allowfor thefullleftandrightmovement
oftherudder.
3.Cut two 1 /2" x 15/16" x 1 -1 /2" balsablocks
from leftover sticks and drill a 5/16" holeinthe
centerof bothblocks.
4. Slidethe 5/16"x 5-1/4"wing dowels
throughtheholesintheLEandputa block onthe
endof each dowel.Align theblocks on the 1/16"
plydihedralbraces so that thedowelsare parallelto
the wing centerline.GluetheBLOCKSONLYtothe
dihedral braces with 6-minute epoxy.Remove the
dowels beforetheepoxysets.
a
1.Findtheeight1 /8" die-cutbalsawingsaddle
pieces.Gluefour pieces togetherusing medium CA
to form one wing saddle. Gluethe otherfour pieces
togetherfor thesecondsaddle.
5.Fitthewingtothefuselage.Centerthewing
and mark the location of thedowels onbulkhead C.
This is donebyputtinga pencilthrough theholein
theLEandmarkingthebulkhead.
6. Removethe wing and drill 5/16" holes into
bulkheadC.
7.Put thedowelsintothewing and fit thewing
back onto the fuselage.Make any adjustments
needed to get the dowels to fitproperly into the
holesinbulkhead C.When satisfied with thefit, glue
the dowels intothe wing with 6-minute epoxy.Use
caution nottogetanyepoxyonthefuselage.
20