Sawn Craft Micro B-58 User guide

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Micro B-58Assembly
and Setup Manual
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Specifications Recommended Power System
Wingspan 12” RX/ESC/Servo Spektrum AR6400 (or similar)
Overall Length 17.28”
Motor
Parkzone P-51 Motor & Gearbox (PKZ3624)
Wing Area 70.7 in2or
Flying Weight 1.3oz Hobbyzone Champ Motor & Gearbox (HBZ4930)
Intended Use Indoor/Calm Winds Battery 160mAh 1S 3.7V 25C LiPo (or similar)
Revised 2014-09-27
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ThankyoufromSawnCraft.
ThankyouforpurchasingtheSawnCraftMicroB‐58aircraft.Likethefull‐scaleUSAFB‐58,inyourhands
isaremarkablyversatileairplanedesignedtodeliverapleasurecruiserwithanincrediblelook.The
lightweightandrigidEPSandcarbonconstructionmakesitpossibleforyoutoexperienceawide
performanceenvelope.Thismeansthatnomatterhowyouliketofly,you’llenjoybothstabilityand
maneuverabilitywithoutanysacrificeinprecisionorcontrolfeel.
YourSawnCraftMicroB‐58aircraftrepresentsthebenchmarkofultra‐microperformanceandaerobatic
versatility.Allyouhavetodonextisreadandapplytheinformationpresentedinthisinstruction
manual.
Isincerelyhopethatyouenjoyyourmodelasmuchaswedo!Ifyouhaveanytroubleswiththese
instructionsorinthesetupofyourmodelfeelfreetocontactusandwewillprovideyouwiththe
serviceyouexpectfromahobbyist‐ownedandoperatedbusiness.
JonathanSawn
Owner,SawnCraft
Jonathan@Sawn‐Craft.com

Table of Contents
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1Introduction1
1.1StyleConventions1
1.2RequiredTools&Supplies1
1.3RequiredPartsforCompletion 2
1.4IncludedPartsDescription 3

2AssemblyInstructions4
2.1FuselageLamination4
2.2WingReinforcementLamination5
2.3Elevator/Elevon&RudderHinging6
2.4SkidInstallation9
2.5FuselageInstallation10
2.6VerticalStabilizerInstallation11
2.7ElectronicsInstallation12
3SetupandTuning14
3.1CenterofGravity14
3.2ControlThrowsandExpo14
3.3Launching14
3.4FlyingTips15
3.5Decorating/Finishing15
3.6SpareParts15

SawnCraftMicroB‐58Manual
1 Introduction
Thecontentsofthismanualassumetheoperatorwillhavethefollowingprerequisites:
•Understandingofallappropriatesafetyproceduresandrequirements
•Theabilitytofollowwrittenproceduresandpossessbasichobbybuildingskills
1.1 Style Conventions
Belowaretheimportantstyleconventionsthatwillbeusedthroughouttheguide.
Note:Keypointsorhintsforsuccesswillbeformattedinthismanner.
Warning:Anyareathatposeseitheraphysicalhazardorthedangerwillbeformattedinthismanner.
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Arrowsinformwheretoclickortoperformthespecifiedoperation.
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Circleditemsinformofitemsofinterestforthespecifiedoperation.Circleditemswilltypicallybe
accompaniedbytextfurtheridentifyingtheregionofinterest.

1.2 Required Tools & Supplies
Thelistbelowcontainsalloftherequiredtoolsandsuppliesthatarerequiredfortheassemblyand
tuningofthismodel.
•Clean,flatworksurface
•#11hobbyknife
•Straight‐edgeruler
•Solderingiron&solder
•Heatgun
•Wirecutters
•Needlenosepliers
•Foam‐safeadhesive
•Clearpackingtape
•200‐gritSandpaperonsandingblock
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SawnCraftMicroB‐58Manual
SawnCraftrecommendstheuseofBeaconFoam‐Tacadhesiveand3MBlendermHingeTapeforthe
constructionofthismodelduetoitsstrength,lightweight,andeasyuse.BothBlendermandFoam‐
TaccanbepurchasedbyvisitingtheBuildingSuppliestabonSawn‐Craft.com
1.3 Required Parts for Completion
Thismodelwasdesignedwiththeintentionofputtingtousetheelectronicsthatareusedintoday’s
popular1SLiPo‐poweredUltra‐Microaircraft.Onceyouhavewornouttheairframeonyour
Hobbyzone©ChamporParkzone©UMP‐51Mustang,simplyremovetheelectronicsandusethemto
powerthismodel.Ifyouchoosetopurchaseyourpowersystemcomponentsseparately,SawnCraft
doesoffertheMicroElectronicsKitthatincludeseverypartofthepowersystemthatyouneed.Thelist
belowcontainsalloftherequiredandrecommendedpartsforthesuccessfuloperationofthismodel.
•1SLiPo“Brick”
•Ultra‐MicroMotorandGearbox
•5x3Propeller(orsimilar)
•1SLiPoBattery
Pleasenotethatotherpowersystemsandcomponentsmaybecompatibleandmayworkwithout
issue,butthelistedcomponentshavebeenusedsuccessfullybySawnCraft.
Optional Parts for Completion
Tomakeyourbuildeasierandensurethenicestlookingfinishedproduct,thefollowingproductsare
offeredonSawnCraft.com.SeetheBuildingSuppliestabfortheseproducts.
•ColoredPackingTape
•MicroElectronicsKit

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SawnCraftMicroB‐58Manual
1.4 Included Parts Description
Pleaseinspectyourkitandensurethatalllistedpartsarepresentandundamaged.Ifyoufindmissing
partsorsignsofdamagepleasecontactSupport@Sawn‐Craft.comforassistance.
a) MainWing
b) KFmStep
c) FuselageHalf(2each)
d) VerticalStabilizer(Elevon)
e) VerticalStabilizer(Rudder/Elevator)
f) LeftElevatorHalf/Elevon
g) RightElevon
h) RightElevatorHalf
i) Skid/Engines(4each)
ComponentBag:
j) MicroControlHorn(4each)
k) 1”0.024”ControlWirewithZ‐Bend(4each)
l) 5”0.024”ElevatorJoinerWire
m) 3"0.051"CarbonRod
n) 4”0.051”CarbonRod(2each)
o) 5”0.051”CarbonRod
p) 6”0.083”CarbonRod
q) 3”2mmHeatShrinkTube(3each)
r) 12”MicroWire
i

i
de
b
a
h
c
f
g
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SawnCraftMicroB‐58Manual
2 Assembly Instructions
Theorderofassemblypresentedinthisinstructionhasbeentestedanditisrecommendedthatyou
donotdifferfromthemtoprovidethemostaccurateandeasiestassemblypossible.
2.1 Fuselage Lamination
•PartsRequired:
oFuselageHalf(2each)
o6”0.083”CarbonRod
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1) Laybothfuselagehalvesflatonthetablewiththerecessedslotfacingup.Pressthecarbonrod
intothefoamontherecessedslotstoenlargetheslot.
2) Applyabeadofgluearoundtheentireperimeterofoneofthefuselagehalves.
3) Presstheungluedfusehalfontothegluedfusehalf,recessedslotsfacingeachother,andgently
slidethepartsaroundtospreadtheglueevenly.
4) Separatethetwofusehalvesandinsertthecarbonrodintooneoftherecessedslots.
5) Rejointhetwofusehalves,gluesidetowardeachother,ensuringthatthecarbonrodalreadyin
theslotalignswiththerecessedslotontheotherfusehalf.Settheassembledfuselamination
asidetoallowthegluetocure.Ifdesiredyoucanplaceaflatweight(book,etc.)ontopofthe
laminationwhilecuringtoensureaflatassembly.
6) Oncecured,sandleadingedgestoroundthemtoyourliking.
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SawnCraftMicroB‐58Manual
2.2 Wing Reinforcement Lamination
•PartsRequired:
oMainWing
oKFmStep
o4”0.051”CarbonRod(2each)
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1) Laythemainwingonthetablewiththediagonalcarbonrodlocationmarkingsslotfacingup.
Pressthecarbonrodintotherecessedslotstoenlargethemslightlyifnecessary.Applyabeadof
gluearoundtheentireperimeteroftheKFmStep.
2) PressthegluedsideoftheKFmontotheMainWingwiththecarbonrodsinplace,aligningthe
leadingedgesofbothparts,andgentlyslidethepartsaroundtospreadtheglueevenly.
3) Settheassembledwinglaminationasidetoallowthegluetocure.Ifdesiredyoucanplaceaflat
weight(book,etc.)ontopofthelaminationwhilecuringtoensureaflatassembly.
4) Oncecured,sandtheleadingedgestoyourliking.
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SawnCraftMicroB‐58Manual
2.3 Elevator/Elevon & Rudder Hinging
•PartsRequired:
oRightElevatorHalf
oLeftElevatorHalf
oElevatorJoinerWire
oVerticalStabilizer
oMicroControlHorn(2each)
oMainWing
or
oElevon(2each)
oMicroControlhorn(2each)
oMainWing

Elevator/RudderSetup
Warning:Thisprocessinvolvesusingextremelysharpcuttingblades.Caremustbetakentoavoidinjury.
1) Laytheelevatorhalvesonthetablewiththeleadingedgefacingyourselfandthewidestparts
nearesteachother.Useastraightedgerulerandahobbyknifeorasandingblocktocutan
approximate45°bevelintotheleadingedgeofthecontrolsurface.
2) Bendtwo90‐degreebendsintotheElevatorJoinerwire1”fromeachend,makingaU‐shapewith
themiddle3”long.Ensuretheshortsidesareparalleltoeachother;ifnot,bendthewiresothey
are.Presstheshortendsofthejoinerwireintothebeveledendoftheelevatorhalvesatthesmall
notchescutintotheelevatorhalves.Gluethewiretotheelevatorhalvesandusesmallpiecesof
tapeovertheslottosecure.









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SawnCraftMicroB‐58Manual
3) Laytheverticalstabilizeronthetablewiththebottomfacingyou.Carefullycracktherudderalong
therudderlineoruseastraightedgerulerandahobbyknifetocutdowntheruddercutlinein
ordertoseparatetherudder.







4) Laytherudderonthetablewiththeleadingedgefacingyou.Useastraightedgeruleranda
hobbyknifetocutanapproximate45°bevelintotheleadingedgeofthecontrolsurface,ensuring
thatthebevelisonthecorrectside.
Ifyouchoosetouseagluehingeforyoursurfacesensureyoubevelthematingsurfaceaswell.
5) Placetheverticalstabilizerandrudderbacktogetherwithtrailingandleadingedgestouching,
orientedtheproperdirectionforthebeveltofacetotheleftwheninstalled.Cutapprox.¼”x1”
piecesofhingetape.Usetwoofthesesmallpiecesoftapetoattachthesmoothsidesofthe
rudderandverticalstabtogether.Dryfitamicrocontrolhornintotheslot,ensuringthatthehinge
bevelisfacingdown.Setassemblyaside.
Tapehinge







6) Placetheelevatorandmainwingtogetherwithtrailingandleadingedgestouching,orientedsuch
thatthehingebevelfacesdownwhentheKFmStepisfacingup.Usetwosmallpiecesoftapeon
eachelevatorhalftoattachthesmoothsidesoftheelevatorhalvesandmainwingtogether.
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ElevonSetup
1) Laytheelevonsonthetablewiththeleadingedgefacingyourselfandthewidepartoftheelevons
ontheoutside.Useastraightedgerulerandahobbyknifeorasandingblocktocutan
approximate45°bevelintotheleadingedgeofthecontrolsurface,ensuringthatyouhavebotha
leftandrightelevon.Dryfitamicrocontrolhornintotheslots,ensuringthatthehingebevelis
facingdown.Note:Ensureyouusetheelevonswithaslotineachforthecontrolhorn.
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2) Placetheelevonandmainwingtogetherwithtrailingandleadingedgestouching,orientedsuch
thatthehingebevelfacesdownwhentheKFmStepisfacingup.Usetwosmallpiecesoftapeon
eachelevontoattachthesmoothsidesoftheelevonandmainwingtogether.
Thisisanidealtimetopaintordecoratethepartsastheyarestillflatandwillbeeasiertohandle.
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SawnCraftMicroB‐58Manual
2.4 Skid Installation
•PartsRequired:
oMainWingAssembly
oSkid(4each)

1) LaythemainwingassemblyonthetablewiththeKFmstepfacingdown.Applyabeadofglue
downtheentirelengthofthetopoftheskid.
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2) PressthegluedsideoftheskidontotheMainWing,aligningtheslotsonthewingwiththetabson
theskids,andgentlypressthepartstogethertospreadtheglueevenly.Allowgluetocurebefore
proceeding.
Slot
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SawnCraftMicroB‐58Manual
2.5 Fuselage Installation
•PartsRequired:
oMainWingAssembly
oFuselageAssembly

1) Applyabeadofgluedowntheentirelengthoftheflatspotonthetoprearofthefuselage
assembly.Alsoapplyglueontheinsideedgesofthemainwingassemblyfuselageslot.
2) Pressthegluedsideofthefuselageassemblyontothemainwingassembly,slidingthefuseallthe
wayback,andgentlyslidethepartsbackandforthtospreadtheglueevenly.Checkthatthefront
ofthewingthatisgluedtothesideofthefuseisstraightandevenonbothsidesofthefuse.Allow
gluetocurebeforeproceeding.
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Glue
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2.6 Vertical Stabilizer Installation
•PartsRequired:
oMainWingAssembly
oVerticalStabilizerAssembly
o5"0.051"CarbonRod

1) Applyabeadofgluedowntheentirelengthofthebottomoftheverticalstabilizerassembly.Press
thegluedverticalstabassemblyontothetopofthemainwingassemblyontotheproperslots,
ensuringthatthestabsitsevenlyonthewing.Allowthegluetocurefullypriortoproceeding.
2) Ifbuildingyourmodelwitharudder:Securethepushrodz‐bendstothe5"carbonrodbyusing
glueandheatshrinktube.Glueonerudderjoinercontrolhornanddryfittheother.Adjustthe
controlrodlengthandthenshrinktheheatshrinktubeto“lock”thez‐bendwireinplacetoensure
thattherudderisstraightwiththeverticalstabilizer.Oncetherodlengthisset,attachthe
ungluedcontrolhorntothez‐bendandthengluetheassemblyinplace.
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SawnCraftMicroB‐58Manual
2.7 Electronics Installation
•PartsRequired:
oCompleteModelAssembly
oRX/ESC/Servo“Brick”
oMotor&Gearboxw/Prop
o12”MicroWire
o1/16”HeatShrinkTube
oHookandloopmaterial
Thestepsforthispartoftheassemblyarethesameformultiplemodelssoeventhoughthephotos
maynotbeforyourmodel,theinstructioniscorrect.Usethephotosforreference.
1) GluetheRX/ESC/Servo“Brick”onthetopofthemainwingatthelocationmarkedbyasquare,just
behindthepropslot.Ensurethattheservogearsarefacingforwardandthebrickandallwiresare
completelyclearoftheprop.
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2) Cutthemotorandbatterywiresapproximatelyinthecenter.Striptheinsulationoffthewire
about1/8”andtinthewires.Stripandtinoneendofthemicrowireaswell.Cutpiecesofshrink
tubetocovertheexposedwires.Slidetheshrinktubeontothewiresleadingtothemotor.Solder
themicrowiretothemotorwireends,matchingpolarity.Oncesoldered,slidetheshrinktube
overthecompletedsolderjointanduseaheatguntoshrinkthetubes.
Warning:Thisprocessinvolvesusingsolderingequipmentthatisextremelyhot.Extremecautionmust
betaken
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SawnCraftMicroB‐58Manual
3) Dryfitthemotorontothetopofthemainwingbyinsertingthemotormountingpinsintothepre‐
cutalignmentholes/dotsinthewingwiththeproplocatedinsidetheopenslot.Routethemotor
wiresaroundtheslotandtothebrickandcutthemicrowiretotheproperlength.Solderthe
motorplugontothemicrowireandcoverwithheatshrinktube.Usesmallpiecesofclearpacking
tapeorgluetosecurethemotorwiresaroundtheslot.Plugthecompleted,longermotorwire
intothebrick.
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4) Usegluetosecurethemotortotheairframe.Letgluecurefullybeforeproceeding.Secureall
loosewireswithtapeorgluearoundthepropslottoensureitisnotdamagedbytheprop.
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AlignmentHoles
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5) Attachapieceofhookandloopmaterialtothesideofthefuse,underthecanopyforbattery
mountingandadjustment.
6) Securethepushrodz‐bendstotheremainingcarbonrodsbyusingglueandheatshrinktube.If
youchoosetouseelevonsyouwillneedtocutthe5"carbonroddownto3"tomatchtheother.
Adjustthecontrolrodlengthandthenshrinktheheatshrinktubeto“lock”thez‐bendwirein
placetoensurethattheelevatorandrudderarestraightwiththemainwingandverticalstabilizer.
Oncetherodlengthisset,installthecontrolrodstothebrickandcontrolhornsthenattachthe
ungluedcontrolhorntothez‐bendandthengluetheassemblyinplace.
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SawnCraftMicroB‐58Manual
3 Setup and Tuning
3.1 Center of Gravity
TheCGofthisplaneislocatedapproximately½”infrontofthepropslotandismarkedbyaslotcutin
thefoamonthemainwing.MovingtheCGforeandaftwilldramaticallychangethehandlingofthe
planesoadjusttoyourliking.AnaftCGwillallowforslow,high‐alphaflightwhileamoreforeCGwill
provideafasterflightexperience.Usetheincludedhookandloopfastenertoadjustthefore/aft
locationofthebatterytoadjusttheCGwithoutaddingadditionalweight.
3.2 Control Throws & Expo
Byalteringtheamountofcontrolthrowthesurfaceshaveyoucanfine‐tunethehandlingand
performance.Belowaretherecommendedsettingsastestedthatwillprovideasuccessfulflying
experience.Throwsaremeasuredatthepointfarthestfromthehinge.
ControlSurface LowRateThrow LowRateExpo HighRateThrow HighRateExpo
Elevator1/2in20%3/4in35%
Rudder5/16in20%3/8in35%
Elevon1/4in30%3/4in55%
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3.3 Launching
Launchingthisaircraftisverysimpleandiseasytodo.Simplyholdtheairplanebythewingtipinone
handwithyourradiointheother.Advancethethrottletofullandgentlyswingtheaircraftforward,
releasingitwithwingslevelandaslightlyupattitude.
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3.4 Flying Tips
Thisaircraftisdesignedtoflyinthespaceassmallasasinglebasketballcourt.Beingsuchlightweight,
itisrecommendedthatthisaircraftbeflownindoorsoroutdoorsincalmwindconditions.Always
ensurethatyouarecomfortablewiththeaircraftanditsflightcharacteristicspriortoflyinginasmall
venue.Ifyouwanttoflyslower,choosetherudder/elevatorversion.Ifyou'dliketoflymore
aerobatically,picktheelevons.Neverflyoverpeopleoranimals.
Thisaircraftfliesmuch“bigger”thanitreallyisandthetechniquesofflyinglargeraircraftapply.Rudder
turnswillbanktheaircraftsoelevatorwillneedtobeaddedtomaintainaltitude.Thedelta‐wingdesign
isinherentlystableandmakesthismodelapurejoytofly!Thismodelcanflyslowlyinhighalphaflight,
butwhenyoudropthenoseitisremarkablyquickandnimble.Landingtheaircraftissimple;keepsome
throttleappliedandastheplanenearstheground,pullbackontheelevatortoflare.
3.5 Decorating/Finishing
Thebeautyofthisaircraftisthatyouhavetheopportunitytofinishitwiththelookthatyoudesire.We
recommendusingcoloredpackagingtape(availableontheBuildingSuppliestab)fordecoratingasitis
easytouse,lightweight,andprovidesanice,glossyfinish.Water‐basedpaintshavebeenusedwith
successinthepastashavepermanentmarkers.Priortousinganypaintsormarkers,testonascrap
pieceoffoamtoensurethatitdoesn’tmeltthefoam.
Rememberthatanyweightyouaddtotheairframewillaffectitsperformancesokeepheavy
applicationsofpaintanddecalstoaminimum.
3.6 Repairs & Spare Parts
Duetothismodelsextremelylightweight,itissurprisinglydurable!Ifapartofthemodelisdamagedit
cantypicallyberepairedusingsmallpiecesofpackagingtapeorbygluingusingBeaconFoamTac.
Ifapartisdamagedbeyondrepair,simplysendusanemailatSupport@Sawn‐Craft.comaswehave
replacementpartsforpurchase.