Black Horse Model GLASAIR Owner's manual

SPECIFICATION
1Wingspan: 1,860 mm 73.23 in.
1Length :1,470 mm 57.87 in.
1Weight : 5.2 kg 11.44 lbs.
Parts listing required (not included):
1Radio : 06 channels.
1Servo : 08 servos.
1Engine : 91-120 2 stroke.
Instruction Manual Book
MadeinVietnam.

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GLASAIR - Item code: BH74 . Instruction Manual
This instruction manual is designed to help you build a great flying aeroplane. Please read this
manualthoroughlybeforestartingassemblyofyour GLASAIR.Usethepartslistingbelowtoidentify
all parts.
WARNING
Please be aware that this aeroplane is not a toy and if assembled or used incorrectly it is
capable of causing injury to people or property. WHEN YOU FLY THIS AEROPLANE YOU
ASSUME ALL RISK & RESPONSIBILITY.
IfyouareinexperiencedwithbasicR/CflightwestronglyrecommendyoucontactyourR/Csupplier
and join your local R/C Model Flying Club. R/C Model Flying Clubs offer a variety of training
proceduresdesignedtohelpthenewpilotonhiswaytosuccessfulR/Cflight.Theywillalsobeable
to advise on any insurance and safety regulations that may apply.
TOOLS & SUPPLIES NEEDED
1Thick cyanoacrylate glue.
130 minute epoxy.
15 minute epoxy.
1Hand or electric drill.
1Assorted drill bits.
1Modellingknife.
1Straightedge ruler.
12mm ball driver.
1Phillips head screwdriver.
1220 grit sandpaper.
190° square or builder’s triangle.
1Wire cutters.
1Masking tape & T-pins.
1Thread-lock.
1Paper towels.
Some more parts.
HARDWARE PACK
COWLING.
Landinggear.....
Toavoidscratching yournew 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 air-
craftandto protectthetable. Keepacoupleof
jars or bowls handy to hold the small parts af-
ter you open the bag.
Pleasetrialfitalltheparts.Makesureyouhave
the correct parts and that they fit and are
alignedproperlybefore gluing!Thiswill assure
properassembly. GLASAIR ARFis handmade
from natural materials, every plane is unique
andminoradjustmentsmay have to bemade.
However, you should find the fit superior and
assembly simple.
The painted and plastic parts used in this kit
are fuel proof. However, they are not tolerant
ofmanyharshchemicals including the follow-
ing:paintthinner,C/Aglueaccelerator,C/Aglue
debonderandacetone.Donotletthesechemi-
cals come in contact with the colors on the
covering and the plastic parts.
PARTS LISTING
FUSELAGE ASSEMBLY
1(1) Fuselage.
WING ASSEMBLY
1(1) Right wing half with pre-installed
aileron.
1(1) Left wing half with pre-installed
aileron.
Tail section assembly
1(1) Vertical stabilizer with pre-
installedrudder.
1(1) Horizontal stabilizer with pre-
installedelevator halves.
SUGGESTION
NOTE.

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GLASAIR - Item code: BH74 . Instruction Manual
+ This is not a toy
+ Be sure that no other flyers are using your radio frequency.
+ Do not smoke near fuel
+ Store fuel in a cool, dry place, away from children and pets.
+ Wear safety glasses.
+The glow plug clip must be securely attached to the glow plug.
+ Do not flip the propeller with your fingers.
+ Keep loose clothing and wires away from the propeller.
+ Do not start the engine if people are near. Do not stand in line with the side of the propeller.
+ Make engine adjustments from behind the propeller only. Do not reach around the spinning
propeller.
SAFETY PRECAUTION.
REPLACEMENT LARGE PARTS
B. Wing panel.
C. Fuselage.
A.Cowling. D.Horizontal stabilizer.
F. Aluminium wing dihedral brace.
E.Vertical stabilizer. G. Decal sheet.
K. Pilot.
REPLACEMENT SMALL PARTS
4x30mm
4x30mm
3x15mm 3x10mm
5x50mm. 5x50mm.

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GLASAIR - Item code: BH74 . Instruction Manual
12)Usingamodeling knife, removethecov-
ering at possition show below.
Cutthe covering
awayfromtheslot.
Temporary pin to
keep hinge centered.
Assemble then apply drops of thin
C/A to center of hinge,on both sides.
Bottom side.
Servo tray
Remove
covering
Secure
6.Spinner.
5. Plastic - enginemount.
2. Wheels
4. Fuel tank.
10. Tail gear set.
3. Wheel pants.
7. Plastic parts for landing gear fuselage.
1. Aluminiumlandinggear.
11. Plastic parts for tail gear.
8.Electric wing light tray.
9. Rudder plastic light.
11) Install the rubber grommets and brass
eyelets onto the aileron servos.
I.AILERON.
1.INSTALLING THE AILERON SERVOS.
Bottom side.
Flap Aileron

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GLASAIR - Item code: BH74 . Instruction Manual
14)Drill1,6mmpilotholes through the block
of wood for each of the four mounting screws
provided with the servo.
13) Using the thread as a guide and using
masking tape, tape the servo lead to the end
of the thread: carefully pull the thread out.
When you have pulled the servo lead out, re-
move the masking tape and the servo lead
from the thread.
o5. Instal servo tray with aileron servo into
the wing as same as picture below.
2x10mm.
Secure.
Install aileron control horn as same as picture
below. Controlhornof Aileron
INSTALLINGTHEAILERON CONTROL HORN.
Electric wire
Thread
A+B Epoxy
PLUSglue.
Drill a hole 1.7mm
diameter

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GLASAIR - Item code: BH74 . Instruction Manual
16.Insertthe90degree bend down through
the hole in the servo arm. Install one nylon
snap keeper over the wire to secure it to the
arm.Install theservoarm retainingscrewand
remove the masking tape from the aileron.
Cut
Bendand
cut after
11.Working withthe aileron linkage fornow,
thread one clevis onto one of the threaded
wires.
13. Plug the aileron servo into the receiver
andcenter theservo. Installthe servoarm onto
the servo. The servo arm should be perpen-
dicular to the servo and point toward the mid-
dle of the wing.
12. Attach the clevis to the outer hole in the
control horn.
14. Locate one nylon servo arm, and using
wire cutters,remove all but one of the arms.
Using a 2mm drill bit, enlarge the third hole
out from the center of the arm to accommo-
date the aileron pushrod wire.
15. Using pliers, carefully make a 90 degree
bend down at the mark made. Cut off the ex-
cess wire, leaving about 4mm beyond the
bend.
Repeat the procedure for the other wing
half.
Aileron
control horn
M2 lock nut Snapkeeper.
M2 100mm
3.INSTALLING THE AILERON
LINKAGES.

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GLASAIR - Item code: BH74 . Instruction Manual
Secure.
2.INSTALLING THE FLAP CONTROL HORN.
Drill a hole 1.7mm
diameter
Flap control
horn
Flap controlhorn
Installflap controlhorn assame as
picturebelow.
A+B Epoxy
PLUS glue
Flap
1.INSTALLING THE FLAP SERVOS.
II. FLAP.
2x10mm.
Remove
covering

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GLASAIR - Item code: BH74 . Instruction Manual
See pictures below:
Cut.
Repeat the procedure for the other wing
half.
INSTALLING THE ENGINE MOUNT.
Flap Bottom side.
Installing the Flap linkages as pictures
below.
3.INSTALLING THE FLAP
LINKAGES.
M2 lock nut Snapkeeper.
M2 100mm
Drill a hole
5.2mm diam-
eter.
4 x 30mm
4 x 30mm

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GLASAIR - Item code: BH74 . Instruction Manual
13) Carefully bend the second nylon tube
up at a 45 degree angle (using a cigarette
lighter). This tube will be the vent tube to the
muffler.
14) Carefullybendthe thirdnylontube down
ata45 degreeangle (usingacigarette lighter).
This tubewillbe venttubeto the fuelingvalve.
INSTALLING THE STOPPER ASSEMBLY
11) The stopper has been pre-assembled
at the factory.
12) Using a modeling knife, cut one length
ofsiliconfuelline (the lengthofsilicon fuel line
iscalculatedbyhowthe weightedclunkshould
restabout8mmaway from therearofthe tank
andmovefreelyinside the tank).Connectone
end of the line to the weighted clunk and the
otherendtothe nylon pickuptube in thestop-
per.
When the stopper assembly is installed in the
tank, the top of the vent tube should rest just
belowthetop surface ofthetank. It shouldnot
touch the top of the tank.
15) Test fit the stopper assembly into the
tank. It may be necessary to remove some of
the flashing around the tank opening using
amodelingknife. If flashing is present, make
sure none of it falls into the tank.
16) Whensatisfiedwiththe alignment of the
stopper assembly tighten the 3mm x 20mm
machine screw until the rubber stopper ex-
pandsandseals thetank opening.Donot over
tighten the assembly as this could cause the
tank to split.
Vent tube Fuel pick- up tube
Fuelfilltube
FUEL TANK.
Silicon tube not included
17) Using a modeling knife, cut 3 lengths of
fuel line 150mm long. Connect 2 lines to the 2
vent tubes and 1 line to the fuel pickup tube in
the stopper.

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GLASAIR - Item code: BH74 . Instruction Manual
Blow through one of the lines to ensure
the fuel lines have not become kinked inside
the fuel tank compartment. Air should flow
through easily.
19) To secure the fuel tank in place, apply a
bead of silicon sealer to the forward area of
thetank,where itexitsthe fuselagebehindthe
enginemounting boxand tothe rearof thetank
at the forward bulkhead.
Do not secure the tank into place perma-
nently until after balancing the airplane. You
may need to remove the tank to mount the
battery in the fuel tank compartment
18) Feed three lines through the fuel tank
compartment and through the pre-drilled hole
in the firewall. Pull the lines out from behind
the engine, while guiding the fuel tank into
place. Push the fuel tank as far forward as
possible,thefront ofthe tankshouldjust about
touch the back of the firewall.
Fueltank

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GLASAIR - Item code: BH74 . Instruction Manual
Locate the long piece of wire used for the
throttlepushrod.One endofthe wirehasbeen
pre-bend in to a “Z” bend at the factory. This
“Z” bend should be inserted into the throttle
armof theengine whenthe engineis fittedonto
theenginemount. Fittheengine totheengine
mount using the screws provided.
Left side
Drill a hole
5.2mm diameter.
Pushrod wire.
145mm
Markpoint
INSTALLING THE ENGINE.
4 x 30mm
Secure
Right side

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GLASAIR - Item code: BH74 . Instruction Manual
11. Slide the fiberglass cowl over the en-
gineandline uptheback edgeofthecowlwith
the marks you made on the fuselage.
12. While keeping the back edge of the
cowl flush with the marks, align the front of
thecowlwiththecrankshaft oftheengine. The
front of the cowl should be positioned so the
crankshaft is in nearly the middle of the cowl
opening. Hold the cowl firmly in place using
pieces of masking tape.
13. Slide the cowl back over the engine
andsecureit in placeusingfour woodscrews.
See picture below.
14. Installthe mufflerandmufflerextension
onto the engine and make the cutout in the
cowl for muffler clearance. Connect the fuel
and pressure lines to the carburetor, muffler
and fuel filler valve.
COWLING.
Right side
Trim and cut
Trim and cut
Botom side
Top side
Right side

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GLASAIR - Item code: BH74 . Instruction Manual
INSTALLING THE SPINNER.
Installthespinner backplate,propellerand
spinner cone. The spinner cone is held in
placeusingtwo 3mm x8mmmachine screws.
Secure
Front view
Top side
Machine screw.
Right side
3 x 12mm
Bottom side.

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GLASAIR - Item code: BH74 . Instruction Manual
12. Mount the servo to the tray using the
mountingscrewsprovided with yourradiosys-
tem.
11. Install the rubber grommets and brass
colletsinto theelevator servo.Test fittheservo
into the servo tray.
Throttle
pushrod
Secure
Throttle servo
1Install one adjustable metal connector
through the third hole out from the center of
one servo arm, enlarge the hole in the servo
armusinga2mm drill bit toaccommodatethe
servo connector. Remove the excess mate-
rial from the arm.
After installing the adjustable metal con-
nector apply a small drop of thin C/A to
the bottom nut. This will prevent the con-
nector from loosening during flight.
INSTALLING THE THROTTLE PUSHROD. Cut
ELEVATOR INSTALLATION.
SERVO INSTALLATION.
Throttle servo
elevator servo
Elevator servo

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GLASAIR - Item code: BH74 . Instruction Manual
Cutthe covering
awayfromtheslot.
Temporary pin to
keep hinge centered.
Assemble then apply drops of thin
C/A to center of hinge,on both sides.
11. Draw a center line onto the horizontal
stabilizer.Thenputthehorizontal intothefuse
large.
12 Usingamodeling knife,cutaway thecov-
ering from the fuselage for the stabilizer and
remove it.
13. Mark the shape of the vertical on the left
and right sides onto the horizontal stabilizer
using a felt-tip pen
Elevator
control horn.
A+B Epoxy
PLUS glue
Drill a hole 1.2mm
diameter
1Horizontal stabilize installation .
See picture below.
HORIZONTAL STABILIZER INSTALLATION.
Elevator control horn install as same as the
way of aileron control horn. Please see pic-
tures below.
ELEVATOR CONTROL HORN INSTALLA-
TION.
Bottom side.

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GLASAIR - Item code: BH74 . Instruction Manual
17. Afterthe epoxy has fully cured,remove
the masking tape or T-pins used to hold the
stabilizer in place and carefully inspect the
glue joints. Use more epoxy to fill in any
gaps that were not filled previously and
clean up the excess using a paper towel and
rubbingalcohol.
Check to mark sure the wing and stabi-
lizerareparalell.If they are not,lightlysand
theopeningin thefuselageforthe stabilizer
until the stabilizer is paralell to the wing.
Epoxy glue.
Remove
covering
Markline.
14. Remove the stabilizer. Using the lines
youjustdrewas a guide, carefullyremovethe
coveringfrombetween themusinga modeling
knife.
When cutting through the covering to re-
move it, cut with only enough pressure to
only cut through the covering it’s self. Cut-
ting into the balsa structure may weaken
it. This could lead to possible failure dur-
ing flight.
16. When you are sure that everything is
aligned correctly, mix up a generous amount
of 30 minute epoxy. Apply a thin layer to the
topandbottomof the stabilizer mountingarea
and to the stabilizer mounting platform sides
inthefuselage.Slidethestabilizerinplaceand
re-align. Double check all of your measure-
ments one more time before the epoxy cures.
Remove any excess epoxy using a paper
towel and rubbing alcohol and hold the stabi-
lizer in place with T-pins or masking tape.
Removecovering.

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GLASAIR - Item code: BH74 . Instruction Manual
C/Aglue.
Elevatorandrudderpushrodinstall assame
as the way of aileron pushrod.
ELEVATOR PUSHROD INSTALLATION.
Elevator
pushrod Elevator
pushrod
Bottom side.
bend 90
degree
Cut
M2M2 lock nut.
Elevator
pushrod

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GLASAIR - Item code: BH74 . Instruction Manual
Rudder servo install as same as method of
elevator servo. See picture below:
13. Mark the shape of the vertical on the left
and right side on the rudder using a felt-tip
pen.
14. Now, remove the rudder and using a
modeling knife, carefully cut just inside the
marked lines and remove the film of the rud-
der. Just as you did with the horizontal stabi-
lizer, make sure you only press hard enough
to cut the film, not the balsa rudder.
1Also carefully remove the covering from
the horizontal fin as below the lines which
you drew as same picture below.
VERTICAL INSTALLATION.
Rudder servo
Removecovering.
90º
Vertical
Stabilizer.
Horizontal
Stabilizer.
Markline.
Rudder
servo
Snapkeeper
Elevatorservo
Elevatorservo
Elevatorpushrod
12. Put the rudder into the fuselage as
same as picture below.

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GLASAIR - Item code: BH74 . Instruction Manual
15. Putthe vertical stabilizer back in place.
Using a triangle, check to ensure that the
vertical stabilizer is aligned 90 degree to the
horizontal stabilizer.
C/A glue
16) When you are sure that everything is a
aligned correctly, mix up a generous amount
of 30 minute epoxy. Apply a thin layer to the
slot in the mounting platform and to the verti-
cal stabilizer mounting area. Apply epoxy to
the lower rudder hinge. Set the stabilizer in
place and re-align. Double check all of your
measurements once more before the epoxy
cures. Remove any excess epoxy using a
paper towel and rubbing alcohol and hold the
stabilizerinplace withT-pins or masking tape.
Allow the epoxy to fully cure before proceed-
ing.
Rudder control horn install as same as the
way of aileron control horn. Please see pic-
tures below.
RUDDERCONTROL HORN INSTALLATION.
Cutthe covering
awayfromtheslot.
Rudder
controlhorn
ControlhornofRudder.
A+B Epoxy
PLUS glue.
Epoxy glue.
Temporary pin to
keep hinge centered.

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GLASAIR - Item code: BH74 . Instruction Manual
1 1. Set the tail wheel assembly in place
on the plywood plate. The pivot point of the
tail wheel wire should be even with the rud-
der hinge line and the tail wheel bracket
should be centered on the plywood plate.
Rudderpush-pullcable.
MOUNTING THE TAIL WHEEL
BRACKET.
11. Rudder push - pull system install as
same as picture below.
RUDDER CABLE INSTALLATION.
Assemble then apply drops of thin
C/A to center of hinge,on both sides.
Rudder cable.
Rudder push-pull system install as sams as
picture below.
M3 clevis ( 4pcs for push - pull system ).
M3locknut.
2 x 10mm
3x15mm
Rudder
pushrod