Seagull Models SEAX139 Manual de usuario
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ASSEMBLY MANUAL
Code: SEAX139
www.seagullmodels.com
“ Graphics and specications may change without notice “ .
(SEAX139R)
(SEAX139W)
Specications:
Wingspan---------------50.4 in ( 128 cm).
Wing area---------------375 sq.in (24.2 sq.dm).
Weight-------------------2.8-3.1 lbs (1.25-1.4 kg).
Length-------------------33.8 in (85.8 cm).
Recommend engine size-------Motor 480
--------------------------------------Power 15 or Power 25
Radio---------------------4 channels with 4 servos.
SHOESTRING 25e EP Instruction Manual.
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ank you for choosing the SHOESTRING 25e EP ARTF by SEAGULL MODELS
COMPANY LTD,. e SHOESTRING 25e EP was designed with the intermediate/ad-
vanced sport yer in mind. It is a semi scale airplane which is easy to y and quick to as-
semble. e airframe is conventionally built using balsa, plywood to make it stronger
than the average ARTF, yet the design allows the aeroplane to be kept light. You will nd
that most of the work has been done for you already. e motor mount has been t-
ted and the hinges are pre-installed. Flying the SHOESTRING 25e EP is simply a joy.
is instruction manual is designed to help you build a great ying aeroplane. Please read
this manual throughly before starting assembly of your SHOESTRING 25e EP . Use the
parts listing below to indentify all parts.
Please be awere 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 & REPONSIBILITY.
If you are inexperienced with basic R/C ight we strongly recommend you contact your R/C
supplier and join your local R/C model Flying Club. R/C Model Flying Clubs oer a variety
of training procedures designed to help the new pilot on his way to successful R/C ight.
ey will also be able to advise on any insurance and safety regulations that may apply.
INTRODUCTION.
WARNING.
KIT CONTENTS
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5
2
3
3
2
4
6 7
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KIT CONTENTS.
SEAX139 SHOESTRING 25e EP
SEAX13901 Fuselage
SEAX13902 Wing set
SEAX13903 Tail set
SEAX13904 Cowling
SEAX13905 Wheel pants
SEAX13906 Aluminum tube
SEAX13907 Landing gear
ADDITIONAL ITEMS REQUIRED.
480 Motor size
Or Power 15 or Power 25
Computer radio with 4 servos.
Glow plug to suit engine.
Propeller to suit engine.
Protective foam rubber for radio
system.
TOOLS & SUPPLIES NEEDED.
ick cyanoacrylate glue.
30 minute epoxy.
5 minute epoxy.
Hand or electric drill.
Assorted drill bits.
Modelling knife.
Straight edge ruler.
2mm ball driver.
Phillips head screwdriver.
220 grit sandpaper.
90° square or builder’s triangle.
Wire cutters.
Masking tape & T-pins.
read-lock.
Paper towels.
HINGING THE AILERON.
Note : e control surfaces, including the ai-
lerons, elevators, and rudder, are prehinged
with hinges installed, but the hinges are not
glued in place. It is imperative that you prop-
erly adhere the hinges in place per the steps
that follow using a high-quality thin C/A glue.
1) Carefully remove the aileron from one
of the wing panels. Note the position of the
hinges.
2) Remove each hinge from the wing panel
and aileron and place a T-pin in the center of
each hinge. Slide each hinge into the wing
panel until the T-pin is snug against the wing
panel. is will help ensure an equal amount
of hinge is on either side of the hinge line
when the aileron is mounted to the aileron.
3) Slide the wing panel on the aileron until
there is only a slight gap. e hinge is now
centered on the wing panel and aileron. Re-
move the T-pins and snug the aileron against
the wing panel. A gap of 1/64” or less should
be maintained between the wing panel and
aileron.
Hinge.
SHOESTRING 25e EP Instruction Manual.
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4) Deect the aileron and completely satu-
rate each hinge with thin C/A glue. e ailer-
ons front surface should lightly contact the
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.
NOTE : e hinge is constructed of a spe-
cial 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.
C/A glue.
8) Aer both ailerons are securely hinged,
rmly grasp the wing panel and aileron to
make sure the hinges are securely glued and
cannot be pulled out. Do this by carefully ap-
plying medium pressure, trying to separate
the aileron from the wing panel. Use caution
not to crush the wing structure.
5) Turn the wing panel over and deect the
aileron in the opposite direction from the
opposite side. Apply thin C/A glue to each
hinge, making sure that the C/A penetrates
into both the aileron and wing panel.
1) Remove the servo cover from the wing.
Do not let the string fall into the wing as it is
used to pull the servo lead through the wing.
2) Place the servo between the tabs on the
servo cover with the output of the servo over
the opening in the cover. With the servo
spaced slightly o the cover, use a pencil to
mark the location for the servo mounting
screws.
6) Using C/A remover/debonder and a paper
towel, remove any excess C/A glue that may
have accumulated on the wing or in the
aileron hinge area.
Work the aileron up and down sev-
eral times to “work in” the hinges
and check for proper movement.
Note :
INSTALLING THE AILERON SERVOS.
7) Repeat this process with the other wing
panel, securely hinging the aileron in place.
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3) Use a drill bit to drill the holes for the ser-
vo mounting screws.
4) Use a screwdriver to thread a servo
mounting screw into each of the holes to cut
threads in the surrounding wood. Remove
the screw before moving to the next step.
6)Secure the servo using the screws provided
with the servo and a screwdriver. e output
sha of the servo will align with the opening
in the cover.
7) Fit the servo horn to the servo so it is per-
pendicular to the servo.
8) Use string or dental oss to secure a servo
extension to the aileron servo lead.
5) Apply 2-3 drops of thin CA in each of the
holes to harden the surrounding wood. is
will harden the threads so the screws do not
easily strip the surrounding wood.
C/A glue.
9) Use the string to pull the extension
through the wing root.
1.5mm
SHOESTRING 25e EP Instruction Manual.
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10) Apply 1-2 drops of thin CA in each
of the holes to harden the surrounding
wood for the aileroon cover screws.
12) Use a drill bit to drill the two holes
completely through the aileron for the ai-
leron control horn mounting screws. e
holes have already been started and are
easily found on the bottom of the aileron.
13) Attach the control horn to the aileron
using two 2x12m metal screws and a con-
trol horn backplate. Use a screwdriver to
tighten the screws.
11) Set the aileron hatch in place and use
screwdriver to install it with four metal
screws.
2x12mm
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M2 clevis. Hex nut.
Fuel tubing.
Repeat steps to install the remaining ai-
leron control horn and pushrod.
1) e blind nuts for securing the land-
ing gear are already mounted inside the
fuselage.
4) Use hobby scissors and a hobby knife
to trim the landing gear fairings. Leave
the size of the fairings slightly over-sized.
2) Using the hardware provided, mount
the main landing gear to the fuselage.
3) Place the fuselage inverted on the
workbench in a suitable stand. Set the
landing gear in place and use a screw-
drive to secure the landing gear to the fu-
selage using bolts M4x15mm and wash-
ers. Make sure to use the threadlock on
the bolts so they don’t vibrate loose.
INSTALLING THE MAIN LANDING
GEAR TO FUSELAGE.
M4x15mm
read locker glue.
C/A glue.
M4x15mm
SHOESTRING 25e EP Instruction Manual.
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WHEELS AND WHEEL PANTS.
6) Fit the landing gear fairings over the
gear. Slowly trim the fairing to t to the
fuselage. When installed, they will cover
the area where the landing gear attaches
to the fuslage.
1) Remove the hardware from the axle.
Place a drop of light machine oil on the
axle to help the wheel roll freely.
2) Slide the axle into the wheel.
3) Slide the wheel into the wheel pant.
C/A glue.
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4) Repeat above steps to install the re-
maining wheel and wheel pant on the
landing gear.
ELECTRIC POWER CONVERSION.
Please see below pictures.
1) Route the leads for the motor through
the hole in the rewall.
2) Loop a tie-wrap ( not included)
through the plate in the fuselage right
above the landing gear plate. Make sure
the tie-wrap is not looped through the
battery mounting plate.
3x20mm
SHOESTRING 25e EP Instruction Manual.
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3) Slide the speed control into the fuse-
lage with the battery wires, receiver lead
and switch going in and through the tie-
wrap. Position the speeed control, then
tighten the tie-wrap to secure the speed
control in the fuselage. e heat sink will
face the top of the fuselage.
4) Connect the wires from the motor to
the wires of the speed control. Use a tie-
wrap ( not included) to secure the leads
so they don’t interfere with the operation
of the motor or installation of the cowl-
ing.
5) Route the battery lead through the
opening in the fuselage. e lead for the
receiver is routed under the battery tray
and receiver, then plugged into the throt-
tle channel of the receiver. Mount the
switch from the speed control in the fu-
selage where it can be accessed when the
canopy is removed.
6) Secure the battery in the fuselageusing
a hook and loop strap. Also, place hook
and loop tape on the battery and fuselage
where they contact each other to prevent
the battery from moving.
Receiver.
Battery.
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