Global Hobby AK-18 Bedienungsanleitung

Instructions for Final Assembly

The Yak-18 was designed by the Soviet Designed Bureau Yakovlev. It was to be used as a

primarytrainerintheSovietAirForce. Likemanyof the Soviet aircraft, the Yak-18wasbuilttowithstand

the rigors of rough field takeoffs and demanding flying. The Yak-18 was equipped with a powerful

radial engine and rugged tricycle landing gear, just for this purpose. It's generous wing area, coupled

with excellent flight and ground handling qualities make the Yak-18 an excellent choice for modelers.

Now you too can experience what the full size Yak-18 might have been like with your new Global

Yak-18 ARF. The Global Yak-18 is built by master craftsmen, utilizing the finest grades of balsa,

light ply, foam and fiberglass. It's covered using heat shrink polyester covering material, just like

you would use if you were building it yourself. A complete set of high quality hardware is in the box.

Thisincludesthefueltank,wheels, pushrods, clevisesand much more. Evena high qualitycomposite

10 x 6 propeller is included. Don't worry about having to buy a quality aftermarket cowl to replace the

cheap plastic one that comes in some ARF's. We've provided a one piece fiberglass cowl that's

painted to match the covering! The scale debris screen is even molded in. With this kind of quality

prefabrication, you'll be in the air and enjoying your new Yak-18 in no time!

.36 -.46 Sport Scale ARF

TABLE OF CONTENTS

To make your modeling experience totally enjoyable, we recommend that you get experienced, knowledgable help

with assembly and during your first flights. Your local hobby shop has information about flying clubs in your area

whose membership includes qualified instructors. You can also contact the AMA at the address below.

Academy of Model Aeronautics

5151 East Memorial Drive

Muncie, IN. 47302-9252

(800) 435-9262

www.modelaircraft.org

Global guarantees this kit to be free from defects in both material and workmanship, at the date of purchase. This does

not cover any components parts damaged by use, misuse or modification. In no case shall Global's liability exceed

the original cost of the purchased kit.

In that Global has no control over the final assembly or material used for final assembly, no liability shall be assumed

for any damage resulting from the use by the user of the final user-assembled product. By the act of using the final

user-assembled product, the user accepts all resulting liability.

Fuel Tank.......................................................................14

Stopper Assembly..................................................14

Stopper Installation................................................15

Fuel Tank Installation.............................................15

Servo Installation...........................................................16

Installing the Fuselage Servos................................16

Throttle Connection.......................................................16

Installing the Throttle Connector............................16

Elevator Pushrod...........................................................16

Installing the Control Horns...................................16

Installing the Elevator Pushrod..............................17

Rudder Pushrod.............................................................17

Installing the Control Horn....................................17

Installing the Rudder Pushrod...............................18

Aileron Pushrods...........................................................19

Installing the Control Horns...................................19

Installing the Aileron Pushrods.............................19

Cowl..............................................................................19

Installing the Cowl Blocks....................................19

Mounting the Cowl.................................................20

Installing the Fuel Filler.........................................20

Installing the Fuel Lines........................................20

Canopy..........................................................................21

Canopy Preparation................................................21

Mounting the Canopy.............................................21

Final Assembly..............................................................21

Installing the Receiver and Battery........................21

Installing the Switch..............................................22

Balancing......................................................................22

Control Throws.............................................................22

Flight Preparation.........................................................22

Preflight Check......................................................22

Flying.............................................................................23

Notes..............................................................................24

Trim Chart......................................................................25

Product Evaluation Sheet..............................................27

Kit Contents....................................................................3

Additional Items Required..............................................4

Tools and Supplies Needed.............................................4

Field Support Equipment Needed...................................4

Metric Conversion Chart.................................................4

Wing Assembly................................................................5

Hinging the Ailerons................................................5

Installing the Aileron Servos...................................6

Installing the Servo Hatches....................................6

Installing the Dihedral Brace...................................7

Joining the Wing Halves..........................................8

Main Gear Installation....................................................8

Installing the Main Gear Wires................................8

Installing the Main Gear Wheels.............................9

Wing Mounting...............................................................9

Installing the Wing..................................................9

Installing the Wing Bolt Doubler.............................9

Horizontal Stabilizer Installation....................................9

Aligning the Horizontal Stabilizer...........................9

Mounting the Horizontal Stabilizer........................10

Hinging the Elevator Halves..................................10

Vertical Stabilizer Installation........................................11

Aligning the Vertical Stabilizer..............................11

Mounting the Vertical Stabilizer............................11

Hinging the Rudder................................................11

Nose Gear Installation...................................................11

Installing the Nose Gear Brackets..........................11

Installing the Steering Arm....................................12

Installing the Steering Pushrod..............................12

Installing the Nose Gear Wheel.............................13

Engine Installation.........................................................13

Mounting the Engine to the Beams........................13

Mounting the Engine to the Firewall......................13

Installing the Throttle Pushrod...............................14

ELEVATOR CONTROL SYSTEM

MAIN GEAR ASSEMBLY

AIRFRAME ASSEMBLIES

AILERON CONTROL SYSTEM

MOTOR MOUNT ASSEMBLY

MISCELLANEOUS ITEMS

FUEL TANK

THROTTLE CONTROL SYSTEM

RUDDER CONTROL SYSTEM

KIT CONTENTS

q{2} Wing Halves with Ailerons

q{1} Fuselage

q{1} Horizontal Stabilizer with Elevator Halves

q{1} Vertical Stabilizer with Rudder

q{1} Molded Fiberglass Cowling

q{1} Molded Clear Canopy

q{2} Prebent Main Gear Wires

q{2} 55mm Diameter Wheels

q{4} Landing Gear Straps

q{8} 3mm x 12mm Wood Screws

q{2} Wheel Collars w/Set Screws

q{2} Nylon Axle Spacers

q{1} 680mm Split Elevator Pushrod Assembly

q{2} Nylon Clevises

q{1} Adjustable Servo Connector Assembly

q{2} Nylon Control Horns w/Backplates

q{4} 2mm x 25mm Machine Screws

q{4} C/A Style Hinges

q{1} 1.5mm x 250mm Pushrod Wire w/Z-bend

q{1} 3mm x 250mm Nylon Pushrod Housing

q{1} Adjustable Servo Connector Assembly

q{1} 680mm Rudder Pushrod Assembly

q{1} Nylon Control Horn w/Backplate

q{2} 2mm x 25mm Machine Screws

q{1} Nylon Clevis

q{1} Adjustable Servo Connector Assembly

q{3} C/A Style Hinges

q{2} 2mm x 76mm Threaded Wires w/Z-Bends

q{2} Nylon Control Horns w/Backplates

q{4} 2mm x 25mm Machine Screws

q{2} Nylon Clevises

q{6} C/A Style Hinges

q{4} 8mm x 20mm x 20mm Wood Blocks

q{8} 2mm x 6mm Wood Screws

q{2} Nylon Motor Mount Beams

q{4} 4mm x 20mm Machine Screws

q{4} 4mm x 35mm Machine Screws

q{8} 4mm Flat Washers

q{4} 4mm Split Washers

q{4} 4mm Hex Nuts

q{1} Plywood Dihedral Brace

q{1} Precovered Wing Bolt Doubler

q{2} Precovered Aileron Servo Hatches

q{4} 10mm x 10mm x 20mm Hardwood Blocks

q{4} 3mm x 12mm Wood Screws

q{4} 3mm Flat Washers

q{2} 4mm x 45mm Socket Cap Screws

q{2} 4mm Flat Washers

q{1} 10 x 6 Propeller for .40 Size Engines

q{1} 280cc Molded Fuel Tank

q{1} 4mm x 28mm Nylon Pick-Up Tube

q{2} 4mm x 28mm Prebent Nylon Vent Tube

q{1} 3mm x 18mm Self Tapping Screw

q{1} Length of Fuel Tubing

q{1} Metal Weighted Pick-Up

q{1) Nylon Fuel Cap

q{1} Rubber Stopper

q{1} Nylon Backplate

q{1} Nylon Fuel Filler Housing

q{1} Nylon Fuel Filler Snap Ring

q{1} Nylon Fuel Filler Plug

This instruction manual is designed to help you build a straight, great flying airplane. Please read this manual

thoroughly before beginning assembly of your new Yak-18. Use the parts listing below to identify and sepa-

rate all of the parts before beginning assembly.

**KIT CONTENTS** We have organized the parts as they come out of the box for better identification

during assembly. We recommend that you regroup the parts in the same manner. This will ensure you have all

of the parts required before you begin assembly and will also help you familiarize yourself with each part.

NOSE GEAR ASSEMBLY

q{1} Prebent Nose Gear Wire

q{1} 55mm Diameter Wheel

q{2} Nylon Nose Gear Mounting Brackets

q{4} 3mm x 16mm Wood Screws

q{2} Wheel Collars w/Set Screws

q{1} Nylon Axle Spacer

q{1} Nylon Steering Arm

q{1} Adjustable Servo Connector Assembly

q{1} 1.5mm x 250mm Pushrod wire w/Z-bend

q{1} 3mm x 250mm Nylon Pushrod Housing

q{1}Hitec 4 or More Channel Radio w/5 Servos

q{2}Cirrus 12” Servo Extensions # 444713

q{1}Cirrus Y-Harness # 444728

q{1}Dubro Heat Shrink Tubing # 440

q{1}Dubro Foam Rubber # 513

q{1}Global Fuel Line # 115923

q{1}Dubro In-Line Fuel Filter # 340

q{1}Olive Drab Lusterkote Spray # TOPR7210

q{1}Magnum XL .36 - .46 Two Cycle Engine

q{1}Propeller To Suit Engine

q{1}Thunderbolt Glow Plug # 115493

q{1}Magnum Polished Spinner Nut # 237210

qKwik Bond Thin C/A # 887500

qKwik Bond Thick C/A # 887510

qKwik Bond 5 Minute Epoxy # 887560

qKwik Bond 30 Minute Epoxy # 887565

qWilhold Silicon Sealer # 00684

qPacer RC256 Canopy Glue # PT-56

q3M Fineline Masking Tape 1/8” # 218-06300

qElectric Drill

qAssorted Drill Bits

qModeling Knife

qMachine Oil or Vaseline

qT-Pins

qStraight Edge Ruler

qPen or Pencil

qDremel Tool w/Assorted Bits

qPhillips Head Screwdriver

qBuilders Triangle

q220 Grit Sandpaper w/Sanding Block

qStandard Masking Tape

qPaper Towels

qRubbing Alcohol

qWire Cutters

q4mm Hex Driver

qMagnum 12V Electric Starter (# 361006)

qMagnum 12V Fuel Pump (# 237377)

qMagnum Locking Glow Clip (# 237440)

qGlobal 12V Battery (# 110171 )

qGlobal 12V Charger (# 110270 )

qMagnum Power Panel (# 237390)

qGlobal Field Buddy Flight Box (# 233072)

qMagnum 4-Way Wrench (# 237420)

q{1}Ernst Charge Jack # 124

q{1} Cirrus On-Board Battery Indicator # 444762

q{2}Williams Bros. Military Pilots # 17100

q{1}Cirrus 12” Servo Extension # 444713

OPTIONAL ITEMS

FOR 2 CYCLE ENGINE

ADDITIONAL ITEMS REQUIRED

TOOLS AND SUPPLIES NEEDED

FIELD SUPPORT EQUIPMENT NEEDED

METRIC CONVERSION CHART

To convert inches into millimeters: Inches x 25.4 = MM

1/64” = .4mm

1/32” = .8mm

1/16” = 1.6mm

3/32” = 2.4mm

1/8” = 3.2mm

5/32” = 4.0mm

3/16” = 4.8mm

1/4” = 6.4mm

3/8” = 9.5mm

1/2” = 12.7mm

5/8” = 15.9mm

3/4” = 19.0mm

1” = 25.4mm

2” = 50.8mm

3” = 76.2mm

6” = 152.4mm

12” = 304.8mm

18” = 457.2mm

21” = 533.4mm

24” = 609.6mm

30” = 762.0mm

36” = 914.4mm

Note - Part numbers for the servo extensions,

Y-harness and On-Board Battery Indicator are

for Hitec and JR radio systems. These items

are also available with different connectors for

use with Futaba and Airtronics radio systems.

PARTS REQUIRED

WING ASSEMBLY

HINGING THE AILERONS

q{2} Wing Halves with Ailerons

q{1} Plywood Dihedral Brace

q{6} C/A Style Hinges

q{4} 8mm x 20mm x 20mm Wood Blocks

q{8} 2mm x 6mm Wood Screws

q{2} Precovered Servo Hatches

q1) Locatethe three precut hinge slotsin the trail-

ing edge of each wing half and the leading edge of

each of the two ailerons.

q2) Test fit the six C/A hinges into the hinge slots

in each aileron. Each hinge should be able to be in-

serted far enough into the aileron so the centerline of

the hinge is flush with the leading edge of the aileron.

If the hinges cannot be inserted deep enough, use a

modeling knife and cut the hinge slots deeper. See

figure # 1 below.

Figure # 1

Be careful not to use too much C/A at one time

as the excess C/A may run down the length of

the hinge line. Once cured, the ailerons may be stiff

and difficult to move. This is normal. Gently move

the ailerons up and down about five to ten times to

free them up.

If you should find a part missing or have questions about assembly, please call or write to the address below:

Customer Service Center

18480 Bandilier Circle

Fountain Valley, CA. 92728

Phone: (714) 963-0329

Fax: (714) 964-6236

E-Mail: service@globalhobby.com

**SUGGESTION**To avoid scratching your new airplane, do not unwrap the pieces until they are needed

for assembly. Cover your workbench with an old towel or brown paper, both to protect the aircraft and to

protect the table. Keep a couple of jars or bowls handy to hold the small parts after you open the bags.

**NOTE** Please trial fit all the parts. Make sure you have the correct parts and that they fit and are

aligned properly before gluing! This will assure proper assembly. Since the YAK-18 is hand made from

natural materials, every airplane is unique and minor adjustments may have to be made. However, you

should find the fit superior and assembly simple.

q3) When satisfied with the fit of the hinges in

the ailerons, remove them and test fit the hinges into

the trailing edge of the wing halves. The centerline

of each hinge should be flush with the trailing edge

of the wing halves. If they are not, perform the same

technique as done in step # 2.

q4) Test fit the ailerons to the wing halves, mak-

ing sure the ailerons engage each hinge completely.

Push the ailerons tight up against the trailing edge of

the wing halves. Move the ailerons up and down to

ensure they move smoothly. The gap between the

leading edge of the ailerons and the trailing edge of

the wing halves should be no more that 1/32”.

q5) Rotate the ailerons down about 45º and apply

6-8 drops of Kwik Bond Thin C/A to the exposed area

ofeach hinge. Allow a few secondsbetween drops for

theC/Atowickintothehinge. Repeatfor the opposite

sides of the hinges. See figure # 2 below.

Figure # 2

Modeling

Knife

Hinge Slot

Hinge

INSTALLING THE AILERON SERVOS

q6) Locate the two aileron servos, two 12” aile-

ron extensions, one Y-Harness and Dubro heat shrink

tubing that you purchased separately.

q7) Plug the two aileron servos into your radio

receiver and center them both. Make sure the aileron

trim tab on your transmitter is centered as well. In-

stall the rubber isolation grommets and brass collets

onto both servos. The collets should be installed with

the flanges towards the bottom of the servo.

q8) Install a single long servo arm onto each of

the servos. The arms should be mounted 90º to the

centerline of the servos. See figure # 3 below.

Figure # 3

q9) Locate the two precovered aileron servo

hatches. Turn each of the two hatches upside down

(non-covered side) and you will notice precut oval

holes. Using a modeling knife, remove the covering

from over the two holes. These holes are where the

servo arms will exit and actuate the ailerons.

q10) Working on the bottom of one servo hatch

for now, place one servo onto the hatch. The servo

arm should be inserted through the hole and the edge

of the servo mounting tabs should be even with the

edge of the hatch. Notice the hole is angled. Make

sure the servo is parallel to the hole.

q11) Holding the servo in proper alignment on

the bottom of the hatch, temporarily place two of the

8mm x 20mm x 20mm wood blocks in place behind

the servo mounting tabs. See photo # 1 below.

Photo # 1

q12) Using a pencil, carefully outline the loca-

tions of the two wood blocks and the servo onto the

bottom of the servo hatch.

q13) Remove the parts from the hatch. Using

KwikBond5MinuteEpoxy, glue the two woodblocks

into place on the servo hatch. Allow the epoxy to

fully cure before proceeding.

It is very important that you use epoxy in this

situation. C/A glues will not adhere as well to

the hardwoods, and if used, the blocks could break

loosewheninstallingtheservo,orworse,duringflight.

q14) After the epoxy has cured, place the servo

back onto the hatch. Mark the locations of the four

mounting screws onto the two blocks using a pencil.

q15) Remove the servo and drill 1/16” pilot holes

through the blocks for the servo mounting screws.

Drilling pilot holes into the wood block before

installing the screws will keep the wood from

splitting when the screws are installed.

q16) Place the servo back onto the servo hatch

and secure it in place with the mounting screws. Re-

peat steps # 10 - # 15 to install the second aileron

servo. On the bottom of each hatch place a mark so

you know which one is for the right and which one is

for the left. This will help keep you from mixing

them up.

INSTALLING THE SERVO HATCHES

q17) Turn one wing panel right side up. Using a

modeling knife and a razor saw, remove the portion

of the root rib above the precut servo exit hole and

cut a half circle in the top of the wing to allow the

servo wire to pass up through. See photo # 2 below.

Photo # 2

90º

Servo Arm

Servo

Hatch Servo

Arm

Mounting

Block

Mounting

Block

Remove From

Top Sheeting

Remove From

Root Rib

Figure # 4

The heat shrink tubing will prevent the plugs

from coming apart during assembly and more

importantly during flight. If you don't use heat shrink

tubing, electrical tape works well also.

q19) Insert the end of the servo extension into the

precut hole from inside the servo bay. Carefully push

the lead through the hole and out the other end.

q20) Set the servo hatch in place on the bottom

of the wing. The hatch should be orientated with the

servo arm toward the wing tip and up towards the

leading edge.

q21) Using a ruler and a pen, measure and mark

the four mounting hole locations onto the hatch. The

holes should be located 1/8” in from each edge.

q22) Drill 1/16” pilot holes through the hatch and

into the hardwood blocks beneath it at the locations

marked. Be careful not to drill through the top of

the wing! Remove the hatch and enlarge the holes

through only the hatch using a 5/64” drill bit. Rein-

stall the hatch using the four 2mm x 6mm wood

screws. See photo # 3 below.

Photo # 3

q23) Repeat steps # 17 - # 22 to install the second

servo hatch assembly into the opposite wing half.

q18) Attachone12”aileronextensiontooneservo

lead. Cut one 1-1/2” length of heat shrink tubing and

slide it over the extension lead. Place the tubing over

the servo plugs where the lead and the extension are

connected. Shrink the tubing using a heat gun to se-

cure the plugs in place. See figure # 4 below.

INSTALLING THE DIHEDRAL BRACE

q24) Look at the surface of each root rib on both

wing halves. Notice how the excess covering mate-

rialoverlapsonto them. Using a modeling knife, care-

fully cut away the covering from both of the root ribs,

leavingabout 1/16” of covering overlapping soitdoes

not pull away.

It is important that the covering be removed

from the root ribs. This will ensure an adequate

wood-to-wood glue joint and prevent wing failure

during flight.

q25) Using a ruler and a pen, locate and mark

the centerline of the plywood dihedral brace. Draw

one vertical line at this location on each side. See

photo # 4 below.

Photo # 4

q26) Test fit the dihedral brace into the plywood

box in each wing half. The brace should slide into

each wing half up to the centerline. If it does not,

remove the brace and lightly sand the edges and tips

until the proper fit is obtained. See photo # 5 below.

Photo # 5

The dihedral brace is cut in the shape of a "V".

The "V" shape should face the top surface of

the wing when the brace is installed.

q27) Test fit both of the winghalves together with

the dihedral brace temporarily installed. Do not use

glue at this time! The wing halves should fit to-

gether tight with little or no gaps in the center section

joint. If the center section joint is not tight, remove

Servo Lead

Extension

Lead

Apply Heat Shrink

Around Plugs

Dihedral

Brace

Root

Rib

Dihedral

Brace

Draw

Centerline

Servo

Hatch

Mounting

Screw

Servo

Arm

Mounting

Screw

the wing halves and lightly sand the edges and tips of

the dihedral brace. Test fit the wing halves together

with the dihedral brace installed again. Repeat until

you are satisfied with the fit of the wing halves.

q28) When satisfied with the fit of the wing

halves,removethewing halves and the dihedral brace.

q29) Mix a generous amount of Kwik Bond 30

Minute Epoxy. Working with only one wing half for

now, apply a thin layer of epoxy inside the plywood

dihedral brace box and to only half of the dihedral

brace. Make sure to cover the top and bottom as well

as the sides, and use enough epoxy to fill any gaps.

q30) Slide the dihedral brace into the plywood

box up to the centerline. Remove any excess epoxy

before it dries using a paper towel and rubbing alco-

hol. Allow the epoxy to cure before proceeding.

q31) Once the epoxy has cured, trial fit both wing

halves together to double check that the wing halves

still fit correctly.

q32) Mix a generous amount of Kwik Bond 30

Minute Epoxy. Apply a thin layer of epoxy to the

exposed half of the dihedral brace, the inside of the

plywood box in the second wing half and the entire

surface of both root ribs. Make sure to use enough

epoxy to fill any gaps.

q33) Slide the two wing halves together and care-

fully align them at the leading and trailing edges.

Wipe away any excess epoxy using a paper towel

and rubbing alcohol. Use masking tape to hold the

two wing halves in place until the epoxy cures. See

photo # 6 below.

JOINING THE WING HALVES

q34) When the epoxy has fully cured, double

check the center section joint. If any gaps are

present, mix a small amount of Kwik Bond 30

Minute Epoxy to carefully fill any remaining gaps.

Allow the epoxy to fully cure.

Photo # 6

PARTS REQUIRED

MAIN GEAR INSTALLATION

INSTALLING THE MAIN GEAR WIRES

q{2} Prebent Main Gear Wires

q{2} 55mm Diameter Wheels

q{4} Landing Gear Straps

q{8} 3mm x 12mm Wood Screws

q{2} Wheel Collars w/Set Screws

q{2} Nylon Axle Spacers

q1) Using a modeling knife, remove the cover-

ing from over the two main gear wire mounting slots

located in the bottom of the wing. One slot is located

in each wing half, 2-3/4” out from the centerline of

the wing and 5-3/4” in front of the trailing edge. The

two slots are 5” long.

q2) Insert the 90º bend of one main gear wire into

the predrilled hole in one mounting slot. The coiled

spring in the gear wire should be facing the trailing

edge of the wing.

q3) The gear wire is held in place using two land-

ing gear straps and four 3mm x 12mm wood screws.

The straps should be located equal distance from the

inner and outer ends of the gear wire.

q4) Usingthe landing gear straps as aguide,mark

the locations of the four 3mm x 12mm mounting

screws onto the wing using a pen.

q5) Remove gear wire and straps and drill four

5/64” holes into the wing to accept the wood screws.

Be careful not to drill through the top of the wing!

q6) Reinstall the landing gear wire and straps

using the four 3mm x 12mm wood screws. Tighten

the screws completely to secure the gear wire in

place. See photo # 7 below.

Photo # 7

q7) Repeat steps # 2 - # 6 to install the second

landing gear wire.

Wing

Centerline

Masking

Tape

Masking

Tape

Landing

Gear Wire

Mounting

Strap

Wood

Screw

Coil

INSTALLING THE MAIN GEAR WHEELS

q8) Slide one nylon spacer, then one wheel and

one wheel collar with set screw onto each axle. Make

sure the wheels spin free and tighten the set screws in

the wheel collars. See photo # 8 below.

Photo # 8

PARTS REQUIRED

WING MOUNTING

INSTALLING THE WING

q{2} 4mm x 45mm Socket Cap Screws

q{2} 4mm Flat Washers

q{1} Precovered Wing Bolt Doubler

q1) Using a modeling knife, remove the cover-

ing from over the two predrilled wing mounting holes

in the trailing edge of the wing. The holes are located

3/4” forward of the trailing edge and 1-1/2” out from

the centerline. Remove the covering from over the

holes on both the top and bottom of the wing.

q2) Place the wing into the wing saddle and tem-

porarily secure it in place using the two 4mm x 45mm

machine screws and two 4mm flat washers.

Two 4mm blind nuts have been preinstalled into

the bottom of the wing mounting block.

q3) Remove the wing bolts and washers, but leave

thewingin place and aligned in the wingsaddle. Hold

it in place with a couple of pieces of masking tape to

help keep it from moving.

q4) Using a ruler and a pen, locate and draw aver-

tical centerline on the bottom of the wing bolt doubler.

q5) Using a modeling knife, carefully score the

wing bolt doubler down the centerline. This will al-

low the doubler to form to the wing's dihedral angle

much easier.

INSTALLING THE WING BOLT DOUBLER

q7) While holding the doubler in place, use a pen

and draw around the doubler to outline it onto the

wing's surface.

q8) Remove the wing bolt doubler. Using a mod-

eling knife, carefully remove the covering from just

inside the outline on the wing.

q9) Mix up a small quantity of Kwik Bond 5

Minute Epoxy and use it to glue the wing bolt dou-

bler to the wing. Any excess epoxy can be easily

removed using a paper towel and rubbing alcohol

before the epoxy cures.

q10) After the epoxy has fully cured, remove the

wing and drill out the wing mounting holes through

the doubler using an 11/64” drill bit. Use the holes

that were predrilled through the wing as a guide.

q11) Place thewing back into thewing saddle. Se-

cure the wing in place using the two 4mm x 45mm

machine screws and two 4mm flat washers.

Photo # 9

PARTS REQUIRED

q{1} Horizontal Stabilizer with Elevator Halves

q{4} C/A Style Hinges

HORIZONTAL STABILIZER

INSTALLATION

ALIGNING THE HORIZONTAL STABILIZER

q1) Using a ruler and a pen, locate the centerline

of the horizontal stabilizer, at the trailing edge, and

place a mark. Use a triangle and extend this mark,

from back to front, across the top of the stabilizer.

Nylon

Spacer

Wheel

Collar

Set

Screw

Wheel

Wing Bolt

Doubler

q6) With the wing held firmly in position, set

the wing bolt doubler in place. The rear edge of the

doubler should be flush with the trailing edge of the

wing and the sides of the doubler should be flush

with the sides of the fuselage. See photo # 9 below.

Figure # 5

q3) When satisfied that the stabilizer is centered,

place a marks on each side of the top and bottom of

the stabilizer where it and the fuselage sides meet.

Doing this will help you realign the stabilizer later.

q4) With the stabilizer centered in the fuselage,

use a couple of pieces of masking tape or a T-pin to

secure the stabilizer in place at the trailing edge only.

q5) Align the stabilizer to the wing. When viewed

from the rear, the stabilizer should be level with the

wing. Ifitisnot, remove the stabilizer and use 220 grit

sandpaper to sand down the high side of the stabilizer

mountingplatforminthefuselageuntilthestabilizer is

level with the wing. Measure the distance from each

wing tip to each stabilizer tip. These distances should

be equal. See figures # 6 and # 7 below.

Figure # 6

Figure # 7

Photo # 10

When using the modeling knife, be careful not

to cut too deep. Only use enough pressure to

cut through the covering. Cutting deeper into the

wood can weaken the structure and possibly cause

the stabilizer to fail in flight.

q9) When you are sure that everything is aligned

correctly, glue the horizontal stabilizer in place using

Kwik Bond 30 Minute Epoxy. Double check all of

yourmeasurementsoncemore before the epoxy cures.

Wipe away any excess epoxy using paper towels and

rubbing alcohol and hold the stabilizer in place using

masking tape or T-pins.

Because the stabilizer has to slide in place

through the fuselage, we suggest you apply a

liberal amount of epoxy to only the gluing surface of

the stabilizer. This will prevent spreading epoxy over

the entire length of one half of the stabilizer when

you slide it in place. After the epoxy has cured, use

more epoxy to fill in any gaps that may exist that were

not filled previously.

MOUNTING THE HORIZONTAL STABILIZER

q2) Slide the stabilizer into place in the precut

slot in the rear of the fuselage. To center the stabi-

lizer from side to side, measure the stabilizer from

the fuselage sides out to the stabilizer's tips. Both

measurements should be equal when the stabilizer is

centered. See figure # 5 below.

q7) On the top and bottom of the stabilizer, draw

a line where it and the fuselage sides meet. Do this

on both the right and left sides.

q8) Remove the stabilizer. Using the lines you

drew as a guide, remove the covering from between

them using a modeling knife. See photo # 10 below.

HINGING THE ELEVATOR HALVES

q10) Hinge thetwoelevatorhalvesusingthesame

technique as with the ailerons.

Be careful not to use too much C/A at one time

as the excess C/A may run down the length of

the hinge lines. Once cured, the elevators may be

stiff and difficult to move. This is normal. Gently

move them up and down about five to ten times to

free them up.

AA-1

Horizontal

Stabilizer

Fuselage A=A-1

BB-1

B=B-1

CC-1

C=C-1

Draw

Line

Draw

Line

Remove

Covering

q6) When you are satisfied with the alignment,

hold the stabilizer in place using a couple of pieces of

masking tape or a couple of T-pins.

Inhaltsverzeichnis

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