Seagull Models ultra-jet Manuel utilisateur
“Graphics and specifications may change without notice”.
MS:159
ASSEMBLY MANUAL
Specifications:
Wingspan----------------------------61.8in(157cm).
Wingarea-----------------1100.5sq.in(71.0sqdm).
Weight-----------------------6.6-7.5lbs(3.0-3.4kg).
Length---------------------------------59.1in(150cm).
Engine --------------- 0.61-0.95cu.in----2-stroke.
Radio--------------------6channelswith6 servos.
Electricconversion:optional
ULTRA JET Instruction Manual.
2
INTRODUCTION.
Thank you for choosing the ULTRA JET ARTF by SEAGULL MODELS COMPANY LTD. The
ULTRAJET wasdesignedwiththeintermediate/advancedsportflyerinmind.Itisanot semiscale
airplane whichiseasytoflyandquicktoassemble.Theairframeisconventionallybuiltusingbalsa,
plywoodtomake it stronger than theaverageARTF, yet the design allowstheaeroplane to be kept
light. You will find that most of the work has been done for you already. The motor mount not fitted
and the hinges are pre-installed. Flying the ULTRA JET 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 ULTRA JET . Use the parts listing below to
identify all parts.
WARNING.
Please be aware that this aeroplane is not a toy and if it is assembled or used incorrectly it
will cause 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 helpthenewpilot onhiswaytosuccessful R/Cflight.Theywill alsobeable
to advise on any insurance and safety regulations that may apply.
KIT CONTENTS
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2
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3
3
5
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ADDITIONAL ITEMS REQUIRED.
0.61-0.95 2-stroke.
Computer radio with 6 servos.
Glow plug to suit engine.
Pusher propeller to suit engine.
Protective foam rubber for radio
system.
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.
1 Fuselage
2 Wing Set
3 Vertical Fins
4 Canopy
5 Leading Edge Extension
6 Aluminum Wing Tube
7 Hardware bag included
KIT CONTENTS. INSTALL ELEVON CONTROL HORN.
Elevon control horn.
Epoxy.
Epoxy.
Fiberglass control horn.
INSTALL LEADING EDGE
EXTENSION
ULTRA JET Instruction Manual.
4
1) Attach the Leading Edge Extension to the
wing. Use a hobby knife to remove the covering
at the Leading Edge Extension and wing end.
2) Apply epoxy to the surface of the Wing and
Leading Edge Extension and hole them
together until the epoxy had set.
Removecovering.
Removecovering.
Fillepoxy.
Fillepoxy.
Fillepoxy.
Sealcoveringiron.
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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.
Thread locker glue.
2) Usingamodeling knife, cut one length
ofsiliconfuelline. Connectoneendoftheline
totheweighted fuel pick up and theotherend
to the nylon pick up tube.
3) Carefully bend the second nylon tube
up at a 45º angle. This tube is the vent tube.
Venttube. Fuel pick up tube.
Fuel fill tube.
ENGINE MOUNT INSTALLATION.
1) Locate the items necessary to install the
engine mount included with your model.
2) Usefour4x30mmheadboltsandfour 4mm
washers to attach the engine mount rails to
thefirewall.Tighten the screws . Make sureto
use threadlock on the screws to help prevent
them from vibrating loose.
4x30mm.
ULTRA JET Instruction Manual.
6
1) Installthe rubber grommets and brass
colletsonto thethrottleservo. Testfittheservo
into the throttle servo mount.
INSTALLING THE FUSELAGE SERVOS.
Because the size of servos differ, you
mayneedto adjust the sizeoftheprecutopen-
ing in the mount. The notch in the sides of the
mount allow the servo lead to pass through.
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.
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.
M3x10mm.
FUEL TANK INSTALLATION.
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 inside thefuselage,it may
be difficult to determine which is which.
7) Slide the fuel tank into the fuselage. Guide
the lines from the tank through the hole in the
firewall.
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.
5) With the stopper assembly in place,
the weighted pick-up should rest away from
therear of thetank and move freely inside 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.
C/Aglue.
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2) Secure the servos with the screws pro-
vided with your radio system.
THROTTLE SERVO ARM INSTALLATION.
Installadjustableservoconnectorinthe servo
arm as same as picture below:
Throttle servo.
Retract servo.
Retract servo arm.
Trim and cut.
3/32” Hole.
INSTALLING THE SWITCH.
Installtheswitchintotheprecut hole in the
side, in the fuselage.
Steering servo. Steering servo arm.
AdjustableServo
Servoarm.
Loctite secure.
1
Diameter=2mm. 2
Diameter=3mm.
Throttle servo arm.
ULTRA JET Instruction Manual.
8
M3x30mm
7) Slide the throttle pushrod wire into the tube.
Position the engine between the mounts. Use
four M3x30mm 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.
3) Use a drill to drill the four holes in the engine
mount rails.
4) On the fire wall has drill a hole in the firewall
for the throttle pushrod the location for the
throttle pusshrod tube (pre-drill).
4.5mm.
4mm.
2) Use a pin drill and 4mm drill bit to drill a
small indentation in the mount for the engine
mounting screw.
MOUNTING THE ENGINE.
1) Positionthe enginewiththedrive washer
(130mm) forward of the firewall as shown.
130mm.
Switch.
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9) Move the throttle stick to the closed position
and move the carburetor to closed. Use a 1.5mm
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.
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.
Pushrod wire
Screw.
ELECTRIC POWER CONVERSION.
1) Locate the items neccessary to install the
electric power conversion included with your
model.
2) Attach the draw cross lines on the sub firewall
to locate the centred mounting position of your
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: .61-75 size models
- Motor: 50mm 310 rev per volt
- Propeller: 13x10 ~ 14x10
- ESC: 60A
- Lipo Batteries: 8 cell 3200mA
Recommendation EP parts as shown (not
included with your model)
Ruler.
Pen.
ULTRA JET Instruction Manual.
10
Electric motor.
M3x15mm.
4mm.
Blindnut.
3) Attach the motor to the front of the electric
motor box using four 3mm blind nut, four
M3x15mm hex head bolts to secure the motor.
Please see picture shown.
M4x60mm.
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