Seagull Models GISPY MOTH User manual

“Graphics and specifications may change without notice”.
MS:169
ASSEMBLY MANUAL
Specifications:
Wingspan------------------------------66.9in(170cm).
Wingarea-----------------764.2sq.in(49.3sqdm).
Weight------------------------10.6lbs(4.8kg).
Length------------------------------58.7in(149.0cm).
Engine ------------------0.75-0.91cu.in----2-stroke.
Engine ------------------0.91-1.10cu.in----4-stroke.
Radio-------------------4channelswith6 servos.
Electricconversion:optional
Flyingskilllevel Advanced/Intermediate.
?

GISPY MOTH. Instruction Manual.
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INTRODUCTION.
Thank you for choosing the GISPY MOTH ARTF by SEAGULL MODELS COMPANY LTD. The
GISPYMONTH wasdesignedwiththeintermediate/advancedsportflyerinmind.Itisa semiscale
airplane whichiseasytoflyandquicktoassemble.Theairframeisconventionallybuiltusingbalsa,
plywoodtomake it strongerthantheaverageARTF, yetthedesignallowstheaeroplane tobekept
light. You will find that most of the work has been done for you already.The motor mount has been
fitted and the hinges are pre-installed . Flying the GISPY MOTH is simply a joy.
This instruction manual is designed to help you build a great flying aeroplane. Please read this
manual thoroughly before starting assembly of your GISPY MOTH . Use the parts listing below to
identify 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
proceduresdesignedto helpthenewpilotonhis waytosuccessfulR/Cflight. Theywillalsobeable
to advise on any insurance and safety regulations that may apply.
KIT CONTENTS
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ADDITIONAL ITEMS REQUIRED.
0.75 - 0.91 2---stroke.
0.91 - 1.10 4---stroke.
Computer radio with 6 servos.
Glow plug to suit engine.
Propeller to suit engine.
Protective foam rubber for radio
system.
Siliconefuel line.
TOOLS & SUPPLIES NEEDED.
Thick cyanoacrylate glue.
30 minute epoxy.
5 minute epoxy.
Hand or electric drill.
Assorted drill bits.
Modellingknife.
Straight edge ruler.
2mm ball driver.
Phillips head screwdriver.
220 grit sandpaper.
90° square or builder’s triangle.
Wire cutters.
Masking tape & T-pins.
Thread-lock.
Paper towels.
KIT CONTENTS.TS
The control surfaces, including the
ailerons, elevators, and rudder, are
prehinged with hinges installed, but
the hinges are not glued in place. It
is imperative that you properly
adhere the hinges in place per the
steps that follow using a high-quality
thin C/A glue.
2)Removeeachhingefromthewingpanel
and aileron and place a T-pin in the center of
each hinge. Slide each hinge into the aileron
untiltheT-pinissnug against the aileron.This
will help ensure an equal amount of hinge is
oneithersideof thehingelinewhentheaileron
is mounted to the wing panel.
Note:
1) Carefully remove the aileron from one
of the wing panels. Note the position of the
hinges.
HINGING THEAILERON .
3) Slide the aileron on the wing panel until
there is only a slight gap. The hinge is now
centered on the wing panel and aileron.
Remove the T-pins and snug the aileron
against the wing panel.A gap of 1/64” or less
shouldbemaintained between the wing panel
andaileron.
Hinge.
T-pin.
1 Fuselage
2 Upper Wing Set
3 Lower Wing Set
4 Tail Set
5 Cowling
6 Main Landing Gear
7 Wing Tube
8 Strut Fuselage
9 Strut Wing
10 Wheels
11 Transport frames
12 Hardware Set

GISPY MOTH. Instruction Manual.
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8)Afterboth ailerons are securelyhinged,
firmly grasp the wing panel and aileron to
make sure the hinges are securely glued and
cannot be pulled out. Do this by carefully
applying medium pressure, trying to separate
the aileron from the wing panel. Use caution
not to crush the wing structure.
Worktheaileron upanddown several
times to “work in” the hinges and
check for proper movement.
Note:
HINGING THE ELEVATOR.
Glue the rudder hinges in place using the
same techniques used to hinge the ailerons.
4) Deflect the aileron and completely
saturate each hinge with thin C/A glue. The
aileronsfrontsurfaceshouldlightlycontactthe
wing during this procedure. Ideally, when the
hinges are glued in place, a 1/64” gap or less
will be maintained throughout the lengh of the
aileron to the wing panel hinge line.
Thehingeis constructed of a special
material that allows the C/A to wick
or penetrate and distribute
throughout the hinge, securely
bonding it to the wood structure of
the wing panel and aileron.
Note:
Hinge.
C/Aglue.
6) Using C/A remover/debonder and a
papertowel,removeany excess C/A glue that
may have accumulated on the wing or in the
aileronhinge area.
5)Turnthe wing paneloveranddeflect the
aileron in the opposite direction from the
opposite side. Apply thin C/A glue to each
hinge,makingsurethattheC/Apenetrates into
both the aileron and wing panel.
7) Repeat this process with the other wing
panel, securely hinging the aileron in place.

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Aileroncontrolhorn.
INSTALL THE AILERONS CONTROL
HORN.
1) Locate the hardware necessary to install
the control horns for the ailerons.
HINGING THE RUDDER.
Glue the rudder hinges in place using the
same techniques used to hinge the ailerons.
Hinge.
Fiberglass control horn.
2)Position the Control horn on the Aileron
and use 30-minute Epoxy
Elevator control horn.
Install the elevator control horn using the
same method as same as the aileron control
horns.
INSTALL ELEVATOR CONTROL HORN.
Fiberglass control horn.
Position the Control horn on the Aileron and
use 30-minute Epoxy
INSTALL RUDDER CONTROL HORN.
Repeatsteps to installthe rudder control horn
as same as steps done for ailerons.
Fiberglass control horn.
Epoxy.
Epoxy.

GISPY MOTH. Instruction Manual.
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Thread locker glue.
1) Using a modeling knife, carefully cut
off the rear portion of one of the 3 nylon tubes
leaving 1/2” protruding from the rear of the
stopper. This will be the fuel pick up tube.
INSTALLING THE STOPPER ASSEMBLY.
2) Usingamodeling knife, cut onelength
ofsiliconfuelline. Connectone end of the line
tothe weighted fuel pick up andthe other end
to the nylon pick up tube.
ENGINE MOUNT INSTALLATION.
Ruddercontrolhorn.
1) Locate the items necessary to install the
engine mount included with your model. .
2) Usefour4x30mmheadboltsandfour4mm
washers to attach the engine mount rails to
thefirewall.Tighten thescrews . Makesure to
use threadlock on the screws to help prevent
them from vibrating loose.
4x30mm.
Epoxy.

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5) With the stopper assembly in place,
the weighted pick-up should rest away from
therear of the tank and move freelyinside the
tank. The top of the vent tube should rest just
below the top of the tank. It should not touch
the top of the tank.
6) When satisfied with the alignment of
the stopper assembly tighten the 3 x 20mm
machine screw until the rubber stopper ex-
pands and seals the tank opening. Do not
overtighten the assembly as this could cause
the tank to split.
Venttube. Fuel pick up tube.
Fuel fill tube.
3) Carefully bend the second nylon tube
up at a 45º angle. This tube is the vent tube.
4) Test fit the stopper assembly into the
tank. It may be necessary to remove some of
the flashing around the tank opening using a
modeling knife. If flashing is present, make
sure none falls into the tank.
You should mark which tube is the vent
and which is the fuel pickup when you attach
fuel tubing to the tubes in the stopper. Once
thetank is installed insidethefuselage, it may
be difficult to determine which is which.
FUEL TANK INSTALLATION.
 7) Slide the fuel tank into the fuselage. Guide
the lines from the tank through the hole in the
firewall.
Fueltank.
 8) Use plywood template to hold in place
the fuel tank with C/A glue to secure the fuel
tank inside the fuselage.
Venttube.
Fuel pick up tube.
Fuel fill tube.
9) Connect the lines from the tank to the engine
and muffler. The vent line will connect to the
muffler and the line from the clunk to the
carburetor.
C/Aglue.
M3x10mm.

GISPY MOTH. Instruction Manual.
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2) Use a pin drill and 4mm drill bit to drill a
small indentation in the mount for the engine
mounting screw.
AdjustableServo
connector.
Servoarm.
Loctite secure.
1PCS.
Throttleservoarm.Elevatorservoarm.
Rudderservoarm.
3/32” Hole.
INSTALLING THE SWITCH.
Installtheswitchinto the precut hole in the
side, in the fuselage.
Switch.
Trimand cut.
140mm.
MOUNTING THE ENGINE.
 1) Positiontheenginewiththedrivewasher
(140mm) forward of the firewall as shown.
Blow through one of the lines to en-
sure the fuel lines have not become kinked
inside the fuel tank compartment. Air
should flow through easily.
INSTALLING THE FUSELAGE SERVOS.
Throttle servo.
Elevator servo.
Rudder servo.
1) Installthe rubber grommets andbrass
colletsonto the throttle servo. Testfittheservo
into the aileron servo mount.
 2) Secure the servos with the screws pro-
vided with your radio system.
Because the size of servos differ, you
mayneedtoadjustthe size oftheprecutopen-
ing in the mount. The notch in the sides of the
mount allow the servo lead to pass through.
THROTTLE SERVO ARM INSTALLATION.
Install adjustableservoconnector inthe servo
arm as same as picture below:
Elevator servo.
Elevatorservoarm.

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3) Use a drill to drill the four holes in the engine
mount rails.
4) On the fire wall has the location for the
throttle pusshrod tube (pre-drill).
4.5mm.
4mm.
8) Reinstall the servo horn by sliding the
connector over the pushrod wire. Center the
throttle stick and trim and install the servo horn
perpendicular to the servo center line.
Machinescrew M4x30mm.
Pushrodwire.
7) Slide the throttle pushrod wire into the tube.
Position the engine between the mounts. Use
four M4x30mm machine screws to secure the
engine to the mount as shown.
5) Slide the pushrod tube in the firewall and
guide it through the fuel tank mount. Use
medium C/A to glue the tube to the firewall and
the fuel tank mount.
6) Connect the Z-bend in the 450mm throttle
pushrod to the outer hole of the carburetor arm.
Pushrod tube hole.
9) Move the throttle stick to the closed position
and move the carburetor to closed. Use a 2.5mm
hex wrench to tighten the screw that secures
the throttle pushrod wire. Make sure to use
threadlock on the screw so it does not vibrate
loose.

GISPY MOTH. Instruction Manual.
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1) Locate the items neccessary to install
thewheeland wheel pants tothelandinggear
as shown.
WHEEL AND WHEEL PANTS
INSTALLATION.
2)Attach the Landing gear struts to the
fuselage.
3) Install the wheel.
M4x20mm.
A.
A.
B.
B.
M4x20mm.
M4x10mm.
C.
C.
D.
D.
D. M3x10mm.
M3x10mm.

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Trim and cut.
Trim and cut.
COWLING.
Trim and cut.
1)Slidethefiberglasscowlovertheengine
and line up the back edge of the cowl with the
marksyoumadeonthefuselagethentrimand
cut as shown.

GISPY MOTH. Instruction Manual.
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Machine screw M3x10mm.
 3) Install the muffler andmuffler extension
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. Secure the cowl to fuse-
lage using the M3x10mm screws.
ELECTRIC POWER CONVERSION.
1) Locate the items neccessary to install the
electric power conversion included with your
model.
2) Attach the electric motor box to the firewall
suitable with the cross lines drawn on the electric
motor box and firewall. Using epoxy and balsa
stick to secure the motor box to the firewall.
Please see pictures below.
- Model size: .75-91 size models
- Motor: 50mm 310 rev per volt
- Propeller: 15x8 ~ 16x8
- ESC: 80A
- Lipo Batteries: 8 cell 4200mA
Recommendation EP parts as shown (not
included with your model)
2) While keeping the back edge of the
cowl flush with the marks, align the front of
thecowlwiththe crankshaft oftheengine. The
front of the cowl should be positioned so the
crankshaft is in nearly the middle of the cowl
opening.Usethe spinnerbackplateasaguide.
Hold the cowl firmly in place using pieces of
masking tape.
Becauseofthesize of the cowl, it maybenec-
essaryto use a needlevalveextension for the
highspeedneedlevalve. Makethisoutofsuf-
ficient length 1.5mm wire and install it into the
end of the needle valve. Secure the wire in
placebytightening the set screwinthe side of
the needle valve.

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4mm.
3) Attach the motor to the front of the electric
motor box using four 4mm blind nut, four
M3x15mm hex head bolts to secure the motor.
Please see picture shown.
M4x20mm. Blindnut.
Epoxy.
140mm.
M3x15mm.
4mm.

GISPY MOTH. Instruction Manual.
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INSTALLING THE PROPELLER.
INSTALLING THEAILERON - FLAP SERVOS.
Servos. Smallweight.
Thread.
Battery.
Balsa stick.
Electric motor.
Epoxy.
Speed control.
5) Attach the speed control to the side of the
motor box using two-sided tape and tie wraps.
Connect the appropriate leads from the speed
control to the motor. Make sure the leads will
not interfere with the operation of the motor.

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1) Usingasmall weight (Weighted fuel pick-up
workswell)andstring, feedthestring through
the wing as indicated.
Because the size of servos differ, you
mayneedto adjustthesizeoftheprecutopen-
ing in the mount. The notch in the sides of
themountallowtheservoleadtopassthrough.
2) Place the servo between the mounting
blocksandspaceitfromthehatch.Useapencil
to mark the mounting hole locations on the
blocks.
3) Use drill bit in a pin vise to drill the mouting
holes in the blocks.
4) Apply 2-3 drops of thin C/A to each of the
mounting holes. Allow the C/A to cure without
using accelerator.
6) Secure the servo to the aileron hatch using
Phillips screwdriver and the screws provided
with the servo.
5) Use dental floss to secure the connection
so they cannot become unplugged.
7) Apply 1-2 drops of thin C/A to each of the
mounting tabs. Allow the C/A to cure without
using accelerator.
8) Using the thread as a guide and using
masking tape, tape the servo lead to the end
ofthethread:carefullypullthethreadout.When
youhavepulledtheservoleadout,removethe
masking tape and the servo lead from the
thread.

GISPY MOTH. Instruction Manual.
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Wing. M3lock nut.
M3 lock nut.
M3clevis.
50mm.
80mm.
Aileron.
9) Set the aileron hatch in place and use a
Phillips screw driver to install it with four wood
screws.
AILERONPUSHROD HORN INSTALLATION
INSTALLINGTHEHORIZONTALSTABILIZER.
1) Using a ruler and a pen, locate the
centerlineofthehorizontalstabilizer,atthetrail-
ing edge, and place a mark. Use a triangle
and extend this mark, from back to front,
across the top of the stabilizer. Also extend
thismark down the backof the trailing edgeof
the stabilizer.

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When cutting through the covering to re-
move it, cut with only enough pressure to
only cut through the covering itself. Cutting
into the balsa structure may weaken it.
Pen.
Trimand cut.
 5) Remove the stabilizer. Usingthe lines
youjust drew as aguide,carefully remove the
covering from between them using a model-
ingknife.
 6) Using a modeling knife, carefully re-
move the covering that overlaps the stabilizer
mounting platform sides in the fuselage. Re-
move the covering from both the top and the
bottom of the platform sides.
 7) When you are sure that everything is
aligned correctly, mix up a generous amount
of 30 Minute Epoxy. Apply a thin layer to the
topandbottom of the stabilizer mountingarea
and to the stabilizer mounting platform sides
in the fuselage. Slide the stabilizer in place
and realign. Double check all of your mea-
surementsoncemorebeforetheepoxycures.
HoldthestabilizerinplacewithT-pinsormask-
ing tape and remove any excess epoxy using
a paper towel and rubbing alcohol.
 4) With the stabilizer held firmly in place,
use a pen and draw lines onto the stabilizer
where it and the fuselage sides meet. Do this
on both the right and left sides and top and
bottom of the stabilizer. Fill epoxy.
Cut.
 3) Slide the stabilizer into place in the pre-
cut slot in the rear of the fuselage. The stabi-
lizer should be pushed firmly against the front
of the slot.
Draw center line.
2)Usingamodelingknife,carefullyremove
thecoveringatmountingslotof horizontal sta-
bilizer ( both side of fuselage).

GISPY MOTH. Instruction Manual.
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Fill epoxy.
2) While holding the vertical stabilizer
firmly in place, use a pen and draw a line on
each side of the vertical stabilizer where it
meets the top of the fuselage.
INSTALLING VERITICAL FIN.
1) Using a modeling knife, remove the
covering from over the precut hinge slot cut
into the lower rear portion of the fuselage.
Remove covering.
Fill epoxy.
Fill epoxy.
90º
Vertical
Stabilizer.
Horizontal
Stabilizer.
Epoxy.
3) Slide the vertical stabilizer back in
place. Using a triangle, check to ensure that
thevertical stabilizer is aligned 90ºto the hori-
zontal stabilizer.
Hinge.
Epoxy.

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Elevator control horn.
ELEVATOR - RUDDER PUSHROD HORN
INSTALLATION.
 1) Install the elevator control horn using
the same method as with the aileron control
horns.
 2) Position the elevator control horn on
the both side of elevator.
4) When you are sure that everything is
alignedcorrectly,mixupagenerousamountof
Flash30MinuteEpoxy. Applyathinlayertothe
mounting slot and to bottom of the vertical sta-
bilizer mounting area. Apply epoxy to the bot-
tomand top edges of thefiller block and tothe
lower hinge also. Set the stabilizer in place
andrealign. Doublecheck allofyourmeasure-
mentsoncemore beforetheepoxycures.Hold
the stabilizer in place with T-pins or masking
tape and remove any excess epoxy using a
papertowelandrubbingalcohol. Allowtheep-
oxy to fully cure before proceeding.
Rudder control horn.
Elevator control horn.
Elevator pushrod.
Rudder pushrod.
M2 lock nut.
M2clevis.
690mm.
 4) Elevatorand rudderpushrodsassembly
as pictures below.
 3) Thread one clevis and M3 lock nut on
toeachelevatorcontrolrod. Threadthehorns
onuntiltheyareflushwith the ends of the con-
trol rods.
Elevator pushrod.
Rudder control horn.
M3Clevis.
Rudder pushrod.
Crimp. Metalconnector.
Cable end.

GISPY MOTH. Instruction Manual.
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3) Position the pilot figure on the canopy floor
as show. Locate the oval shaped on the canopy
floor and remove the covering. Use epoxy to
glue this into the base of the pilot figure and
glue the cockpit panel in place with C/A glue,
please see pictures as shown.
If you are going to install a pilot figure, please
use a sanding bar to sand the base of the figure
so that it is flat.
INSTALLATION PILOT AND CANOPY.
1) Locate items necessary to install pilot,
cockpit panel, and canopy.
2) A scale pilot is included with this ARF. The
Seagull Pilot included fitting well to the cockpit.
(or you can order others scale pilot figures
made by Seagull factory. They are available at
Seagull distributors.)
3x15mm.
Aluminum tail
landing gear.
MOUNTING THE TALI WHEEL.
1) Locate the items for this section of the
manual.
3 x 10mm.
C/Aglue.