hand-made almost ready to fly r/c model aircraft · supplier and join your local r/c model flying...

Made in Vietnam.

“Graphics and specfications may change without notice”.

Kit features.

• Ready-made—minimal assembly & finishing required.• Ready-covered covering.• Photo-illustrated step-by-step Assembly Manual.

SpecificationsWingspan---------------------------------------- 82.7 in------------------------- 210cm.Wing area----------------------------------- 1086 sq.in--------------------- 70 sq.dm.Approximate flying weight------------------ 11 lbs------------------------------- 5kg.Length-------------------------------------------- 58.7in------------ -------------- 149cm.Recommended engine size---------- .1.2-1.5 cu.in--------------------- 4-stroke.

Radio System required 4 channels with 6 digital servos/karboniteor metal gear.Flying skill level Intermediate/advanced.

Hand-made Almost Ready to Fly R/C Model Aircraft

ASSEMBLY MANUALMS: 61

SPACE WALKER II Instruction Manual

2

INTRODUCTION.

Thank you for choosing the SPACE WALKER II ARTF by SEAGULL MODELS. The SPACEWALKER II was designed with the intermediate/advanced sport flyer in mind. It is a scale airplanewhich is easy to fly and quick to assemble. The airframe is conventionally built using balsa, plywoodto make it stronger than the average ARTF , yet the design allows the aeroplane to be kept light. Youwill find that most of the work has been done for you already. The motor mount has been fitted andthe hinges are pre-installed . Flying the SPACE WALKER II is simply a joy.

This instruction manual is designed to help you build a great flying aeroplane. Please read thismanual thoroughly before starting assembly of your SPACE WALKER II . Use the parts listing belowto identify all parts.

WARNING.

Please be aware that this aeroplane is not a toy and if assembled or used incorrectly itis capable of causing injury to people or property. WHEN YOU FLY THIS AEROPLANE YOUASSUME ALL RISK & RESPONSIBILITY. If you are inexperienced with basic R/C flight we strongly recommend you contact your R/Csupplier and join your local R/C Model Flying Club. R/C Model Flying Clubs offer a variety of trainingprocedures designed to help the new pilot on his way to successful R/C flight. They will also be ableto advise on any insurance and safety regulations that may apply.

ADDITIONAL ITEMS REQUIRED.

.1.2-1.5 4-stroke engine6 digital servos/karbonite

or metal gear.Glow plug to suit enginePropeller to suit engineProtective foam rubber for radiosystemSilicone fuel line

TOOLS & SUPPLIES NEEDED.

Thick cyanoacrylate glue30 minute epoxy5 minute epoxyHand or electric drillAssorted drill bitsModelling knifeStraight edge ruler2mm ball driverPhillips head screwdriver220 grit sandpaper90° square or builder’s triangleWire cuttersMasking tape & T-pinsThread-lockPaper towels

PARTS LISTING.

FUSELAGE ASSEMBLY(1) Fuselage(1) Canopy hatch

WING ASSEMBLY

(1) Right wing half/ aileron(1) Left wing half with/ aileron(1) Aluminium dihedral brace

Tail section assembly

(1) Horizontal stabilizer/ elevatorhalves.

(1) Rudder halves.

Some more parts.

HARDWARE PACK

COWLINGLanding gear.....

www.seagullmodels.com

3

NOTE: To avoid scratching your new aero-plane we suggest that you cover yourworkbench with an old towel. Keep acouple of jars or bowls handy to holdthe small parts after you open thebags.Please trial fit all parts. Make sure youhave the correct parts and that theyfit and are aligned properly beforegluing! This will ensure proper as-sembly as the SPACE WALKER II ismade from natural materials andminor adjustments may have to bemade. The paint and plastic partsused in this kit are fuel proof. How-ever, they are not tolerant of manyharsh chemicals including the follow-ing: paint thinner, cyano-acrylate glueaccelerator, cyanoacrylate glue de-bonder and acetone. Do not let thesechemicals come in contact with thecolours on the covering and the plas-tic parts.

1) Carefully remove the aileron from oneof the wing panels. Note the position of thehinges.

2) Remove each hinge from the wing paneland aileron and place a T-pin in the center ofeach hinge. Slide each hinge into the wingpanel until the T-pin is snug against the wingpanel. This will help ensure an equal amountof hinge is on either side of the hinge line whenthe aileron is mounted to the aileron.

HINGING THE AILERONS.

3) Slide the wing panel on the aileron untilthere is only a slight gap. The hinge is nowcentered on the wing panel and aileron.Remove the T-pins and snug the aileronagainst the wing panel. A gap of 1/64” or lessshould be maintained between the wing paneland aileron.

The control surfaces, including theailerons, elevators, and rudder, areprehinged with hinges installed, but thehinges are not glued in place. It isimperative that you properly adhere thehinges in place per the steps that followusing a high-quality thin C/A glue.

Note:

4)Deflect the aileron and completelysaturate each hinge with thin C/A glue. Theailerons front surface should lightly contact thewing during this procedure. Ideally, when thehinges are glued in place, a 1/64” gap or lesswill be maintained throughout the lengh of theaileron to the wing panel hinge line.Note: The hinge is constructed of a special

material that allows the C/A to wick orpenetrate and distribute throughout thehinge, securely bonding it to the woodstructure of the wing panel and aileron.

C/A glue.

Hinge.

T-pins.

T-pins.

Hinge.


4

HINGING THE ELEVATOR.

8) After both ailerons are securely hinged,firmly grasp the wing panel and aileron tomake sure the hinges are securely glued andcannot be pulled out. Do this by carefullyapplying medium pressure, trying to separatethe aileron from the wing panel. Use cautionnot to crush the wing structure.

7) Repeat this process with the other wingpanel, securely hinging the aileron in place.

5) Turn the wing panel over and deflect theaileron in the opposite direction from theopposite side. Apply thin C/A glue to eachhinge, making sure that the C/A penetrates intoboth the aileron and wing panel.

6) Using C/A remover/debonder and apaper towel, remove any excess C/A glue thatmay have accumulated on the wing or in theaileron hinge area.

HINGING THE RUDDER.

Glue the elevator hinges in place using thesame tectniques used to hinge the ailerons.

Glue the rudder hinges in place using thesame tectniques used to hinge the ailerons.

Work the aileron up and down severaltimes to “work in” the hinges and checkfor proper movement.

Note:

See pictures below.Make yourself thetemplate of your engine on paper.

ENGINE MOUNT INSTALLATION.

Mark and drill 4 holes for engine mount. Insert 4 blind nuts to firewall.

Hinge.

4x30mm.

Thread locker glue.

Diameter =5.5mm.


5

2) Using a modeling knife, cut one lengthof silicon fuel line. Connect one end of the lineto the weighted fuel pick up and the other endto the nylon pick up tube.(The silicon tube isnot included).

3) Carefully bend the second nylon tubeup at a 45º angle. This tube is the vent tube.

1) Using a modeling knife, carefully cutoff the rear portion of one of the 3 nylon tubesleaving 1/2” protruding from the rear of thestopper. This will be the fuel pick up tube.

INSTALLING THE STOPPER ASSEMBLY.

Carefully use a lighter or heat gun topermenently set the angle of the vent tube.

4) Test fit the stopper assembly into thetank. It may be necessary to remove some ofthe flashing around the tank opening using amodeling knife. If flashing is present, makesure none falls into the tank.

Vent tube. Fuel pick up tube.

Fuel fill tube.

5) With the stopper assembly in place,the weighted pick-up should rest away fromthe rear of the tank and move freely inside thetank. The top of the vent tube should rest justbelow the top of the tank. It should not touchthe top of the tank.

6) When satisfied with the alignment ofthe stopper assembly tighten the 3 x 20mmmachine screw until the rubber stopper ex-pands and seals the tank opening. Do notovertighten the assembly as this could causethe tank to split.

FUEL TANK INSTALLATION.

You should mark which tube is the ventand which is the fuel pickup when you

attach fuel tubing to the tubes in the stopper.Once the tank is installed inside the fuselage,it may be difficult to determine which is which.

Important: When the stopper assembly is in-stalled in the tank, the top of the vent tubeshould rest just below the top surface of thetank. It should not touch the top of the tank.


6

1) Assemble and mounting the wheel pantsas shown in the following pictures.

2) Follow diagram below for wheel pantinstallation:

Blow through one of the lines to ensurethe fuel lines have not become kinked in-

side the fuel tank compartment. Air shouldflow through easily.

WHEEL AND WHEEL PANTS INSTALLA-TION.

Fuel pick-up tube.

Fuel fill tube.

Vent tube.

(2) Wheel Collar.

Axle.

Wheel.Nut.

Nut.

(2) Washer.

Rubber band.

Fuel tank.

Wheel Collar.

Axle.

Wheel. Nut.

Wheel Pant.

Landing Gear.

Nut.

(2) Washer.

7mm

14mm

Lite -Plywood block.


7

3) A drop of C/A glue on the wheel collarscrews will help keep them from coming loseduring operation. Repeat the process for the other wheel.

1) The blind nuts for securing the landinggear are already mounted inside the fuselage.

2) Using the hardware provided, mountthe main landing gear to the fuselage.

INSTALLING THE MAIN LANDING GEAR.

6x20mm.

Lite-plywood block.

LANDING GEAR FAIRING

Landing gear fairing.

3 x 10mm.

3x10mm.(4 pcs).


8

6) Attach the Z-Bend in the pushrod wire tothe throttle arm on the carburetor.

COWLING INSTALLATION.

1) Slide the fiberglass cowl over the en-gine and line up the back edge of the cowl withthe marks you made on the fuselage then trimand cut.

5) Bolt the engine to the engine mount usingthe four machine screws. Double check thatall the screws are tight before proceeding.

4.2mm.

Pushrod wire.

Machine Screw 4x30mm.

4) Remove the engine. Using an drill bit,drill the mounting holes through the enginemount at the four locations marked.

2) Place your engine onto the enginemount. Adjust the engine is centered of theedges of the engine case.

3) When you are satisfied with the align-ment, mark the locations of the enginemounting.

1) Install the pushrod housing through thepredrilled hole in the firewall and into the servocompartment. The pushrod housing shouldprotrude 1/4" out past the front of the firewall. Make a Z-Bend 1/4" from one end of the plainwire pushrod.

MOUNTING THE ENGINE.

155mm.

Trim and cut.

Trim and cut.


9

2) While keeping the back edge of thecowl flush with the marks, align the front ofthe cowl with the crankshaft of the engine. Thefront of the cowl should be positioned so thecrankshaft is in nearly the middle of the cowlopening. Use the spinner backplate as a guide.Hold the cowl firmly in place using pieces ofmasking tape.

3) Install the muffler and muffler extensiononto the engine and make the cut out in thecowl for muffler clearance. Connect the fueland pressure lines to the carburetor, mufflerand fuel filler valve. Secure the cowl to fuse-lage using the 3x10mm screws (4).

Install the spinner backplate, propeller andspinner cone.

DUMMY ENGINE AND SPINNERINSTALLATION.

The propeller should not touch any partof the spinner cone. If it does, use a

sharp modeling knife and carefully trim awaythe spinner cone where the propeller comesin contact with it.

Because of the size of the cowl, it may be nec-essary to use a needle valve extension for thehigh speed needle valve. Make this out of suf-ficient length 1.5mm wire and install it into theend of the needle valve. Secure the wire inplace by tightening the set screw in the side ofthe needle valve.

Machine Screw 3x10mm.

Glue.


10

THROTTLE SERVO ARM INSTALLATION.

1) Install adjustable servo connector inthe servo arm .

2) Using a modeling knife, carefully removethe covering at mounting slot of horizontal sta-bilizer ( both side of fuselage).

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 frontof the slot.

HORIZONTAL STABILIZER.

1) Using a ruler and a pen, locate thecenterline of the horizontal stabilizer, at the trail-ing edge, and place a mark. Use a triangleand extend this mark, from back to front,across the top of the stabilizer. Also extendthis mark down the back of the trailing edge ofthe stabilizer.

Draw center line.

INSTALLING THE SWITCH.

Install the switch into the precut hole in theside of fuselage.

Throttle servo.

Rudderservo.

Elevator servo.

Elevator servo.

INSTALLING THE FUSELAGE SERVO.

1) Install the rubber grommets and brasscollets onto the throttle servo. Test fit the servointo the aileron servo mount.

2) Secure the servos with the screws pro-vided with your radio system.

Because the size of servos differ, youmay need to adjust the size of the precut open-ing in the mount. The notch in the sides of themount allow the servo lead to pass through.

Switch.

Remove covering.

Adjustable Servoconnector.

Servo arm.

Loctite secure.

Throttle servor arm .

Rudderservo. Elevator servo.

Elevator servo.

1 pcs.


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4) With the stabilizer held firmly in place,use a pen and draw lines onto the stabilizerwhere it and the fuselage sides meet. Do thison both the right and left sides and top andbottom of the stabilizer.

Pen.

6) Using a modeling knife, carefully re-move the covering that overlaps the stabilizermounting platform sides in the fuselage. Re-move the covering from both the top and thebottom of the platform sides.

5) Remove the stabilizer. Using the linesyou just drew as a guide, carefully remove thecovering from between them using a model-ing knife.

VERTICAL STABILIZER INSTALLATION.

1) Using a modeling knife, remove thecovering from over the precut hinge slot cutinto the lower rear portion of the fuselage. Thisslot accepts the lower rudder hinge.

Double check all of your measurements oncemore before the epoxy cures. Hold the stabi-lizer in place with T-pins or masking tape andremove any excess epoxy using a paper toweland rubbing alcohol.

Remove covering.

When cutting through the covering to re-move it, cut with only enough pressure

to only cut through the covering itself. Cuttinginto the balsa structure may weaken it.

Hinge slot.

Hinge.

7) When you are sure that everything isaligned correctly, mix up a generous amountof 30 Minute Epoxy. Apply a thin layer to thetop and bottom of the stabilizer mounting areaand to the stabilizer mounting platform sidesin the fuselage. Put the stabilizer in place andrealign.

2) Slide the vertical stabilizer into the slotin the top of the fuselage. The rear edge ofthe stabilizer should be flush with the rear edgeof the fuselage and the lower rudder hingeshould engage the precut hinge slot in thelower fuselage. The bottom edge of the stabi-lizer should also be firmly pushed against thetop of the horizontal stabilizer.


12

Set the stabilizer in place and realign. Doublecheck all of your measurements once more be-fore the epoxy cures. Hold the stabilizer in placewith T-pins or masking tape and remove anyexcess epoxy using a paper towel and rubbingalcohol. Allow the epoxy to fully cure beforeproceeding.

6) When you are sure that everything isaligned correctly, mix up a generous amount of30 Minute Epoxy. Apply a thin layer to the mount-ing slot in the top of the fuselage and to the sidesand bottom of the vertical stabilizer mountingarea. Apply epoxy to the bottom and top edgesof the filler block and to the lower hinge also.

C/A glue.

Hinge.

5) Slide the vertical stabilizer back inplace. Using a triangle, check to ensure thatthe vertical stabilizer is aligned 90º to the hori-zontal stabilizer.

4) Remove the stabilizer. Using a mod-eling knife, remove the covering from belowthe lines you drew.

Remove covering.

3) While holding the vertical stabilizerfirmly in place, use a pen and draw a line oneach side of the vertical stabilizer where itmeets the top of the fuselage.

Pen.

When cutting through the covering to re-move it, cut with only enough pressure to

only cut through the covering itself. Cuttinginto the balsa structure may weaken it.

90º

VerticalStabilizer.Horizontal

Stabilizer.


13

INSTALLING THE AILERON SERVOS.

String.Small weight.

Using a small weight (Weighted fuel pick-upworks well) and thread, feed the string throughthe wing as indicated.

Servos. Small weight.

Thread.

Attach the string to the servo lead andcarefully thread it though the wing. Once youhave thread the lead throught the wing, removethe string so it can use for the other servolead. Tape the servo lead to the wing to preventit from falling back into the wing.

Electric wire.

String.

Secure the servos with the screws pro-vided with your radio system.

Wing bottom.

Thread.

Electric wire.

Pull.

Install the rubber grommets and brasscollets onto the aileron servo. Test fit theservo into the aileron servo mount.

Because the size of servos differ, youmay need to adjust the size of the precut open-ing in the mount. The notch in the sides ofthe mount allow the servo lead to pass through.

wing bottom.

Thread.

Small weight.

Lower wing bottom.


14

M2 lock nut.

M3 lock nut.

M3 nut.

Aluminium washer.

M3 control horn.

Wing bottom.

Wing bottom.

Aileron control horn.

M2 lock nut.

M2 clevis.

75mm.

Wing bottom.

1) Aileron control horn: Mix a small amount of 30 minute epoxy andlightly coat the inside of the hole in the aileronand the control horn screw.

AILERON CONTROL HORN INSTALLATION

Wing.

Aileron.

2 sets.

3x40mm.

Wing bottom.

drill hole3.2mm.

Repeat the procedure for orther winghaft.

Plastic tape.

Aileron electric.


15

Left side.Elevator

control horn.

Ruddercontrol horn.

Repeat the procedure for the other wing.

3) Install the rudder control horn using thesame method as with the elevator controlhorns.

2) Elevator and rudder pushrods assemblyfollow pictures below.

1) Thread one clevis and M2 lock nut onto each elevator control rod. Thread the hornson until they are flush with the ends of the con-trol rods.

ELEVATOR - RUDDER PUSHRODINSTALLATION.

Right side. Elevator control horn.

Elevator pushrod.

Rudder pushrod.

Elevator pushrod.

Horizontal fin.

Elevator.

2 sets.

3x35mm.

ELEVATOR - RUDDER CONTROL HORNINSTALLATION.

1) Install the elevator control horn usingthe same method as with the aileron controlhorns. 2) Position the elevator control horn on

the both side of elevator.

Ruddercontrol horn.

Elevatorcontrol horn.

Metal clevis. Control horn.

Rudder pushrod.

Elevator pushrod.


16

INSTALLING TAIL STRUST SUPPORT

The tail strut system assembly follow pic-tures below.

2

2

1

2

2

M3 x20 mm.

Spring.

3 x10 mm.

1

2

MOUNTING THE TAIL WHEEL.See picture below.

Throttle.

Elevator.

Rudder.

Elevator.

3x25mm.

M3 x20 mm.

3 x10 mm.

3x25mm.


17

1

2

1

2

2

3

3

4

4

3

3

3

4

M3x20mm.

Bottom.

Bottom.

Bottom.

Bottom.

4

3

4

3Bottom.


18

1) Plug the six servo leads and the switchlead into the receiver. Plug the battery packlead into the switch also.

2) Wrap the receiver and battery pack inthe protective foam rubber to protect themfrom vibration.

3) Route the antenna in the antenna tubeinside the fuselage and secure it to the bot-tom of fuselage using a plastic tape.

INSTALLING THE BATTERY-RECEIVER.

ATTACHMENT WING-FUSELAGE.

Attach the aluminium tube into fuselage.

Insert two wing panels as pictures below.

Machine Screw 2 x 8mm.

Silicon glue.

Silicon glue.

60mm. 60mm.

2x8mm.

Antenna.

wing tube.

15mm. 15mm.

Silicon glue pilot.

Battery.

Receiver.

INSTALLATION PILOT.


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1) It is critical that your airplane be bal-anced correctly. Improper balance will causeyour plane to lose control and crash. The cen-ter of gravity is locate 11cm back from theleading edge of the wing, measured at wingtip.

BALANCING.

2) If the nose of the plane falls, the planeis nose heavy. To correct this first move thebattery pack further back in the fuselage. Ifthis is not possible or does not correct it, sticksmall amounts of lead weight on the fuselagesides under the horizontal stabilizer. If the tailof the plane falls, the plane is tail heavy.

wing bolt.

3) When the elevator, rudder and aileroncontrol surfaces are centered, use a ruler andcheck the amount of the control throw in eachsurface. The control throws should bemeasured at the widest point of each sur-face!

2) Turn on the radio system, and with thetrim tabs on the transmitter in neutral, centerthe control surfaces by making adjustmentsto the clevises or adjustable servo connectors.The servo arms should be centered also.

1) We highly recommend setting up theSPACE WALKER II using the control throwslisted at right. We have listed control throwsfor both Low Rate (initial test flying/sport fly-ing) and High Rate (aerobatic flying).

CONTROL THROWS.

To correct this, move the battery and receiverforward orif this is not possible, stick weightonto the firewall.When balanced correctly, theairplane should sit level or slightly nose downwhen you lift it up with your fingers.

4) By moving the position of the adjust-able control horn out from the control surface,you will decrease the amount of throw of thatcontrol surface. Moving the adjustable con-trol horn toward the control surface will in-crease the amount of throw.

FLIGHT PREPARATION.

A) Check the operation and direction ofthe elevator, rudder, ailerons and throttle. B) Plug in your radio system per themanufacturer's instructions and turn every-thing on.

C) Check the elevator first. Pull back onthe elevator stick. The elevator halves shouldmove up. If it they do not, flip the servo re-versing switch on your transmitter to changethe direction.11 cm.

INITIAL FLYING/SPORT FLYING

Ailerons: 3/16” up 3/16” down.Elevator: 3/8” up 3/8” down.Rudder: 1” right 1” left.

AEROBATIC FLYING

Ailerons: 3/8” up 3/8” down.Elevator: 1” up 1” down.Rudder: 2” right 2” left.

Do not use the aerobatic settings forinitial test flying or sport flying.


20

F) From behind the airplane, look at theaileron on the right wing half. Move the aileronstick to the right. The right aileron should moveup and the other aileron should move down. Ifit does not, flip the servo reversing switch onyour transmitter to change the direction.

E)Check the throttle. Moving the throttlestick forward should open the carburetor bar-rel. If it does not, flip the servo reversing switchon your transmitter to change the direction.

D) Check the rudder. Looking from be-hind the airplane, move the rudder stick to theright. The rudder should move to the right. If itdoes not, flip the servo reversing switch onyour transmitter to change the direction.

PREFLIGHT CHECK.

1) Completely charge your transmitterand receiver batteries before your first day offlying.

2) Check every bolt and every glue jointin the SPACE WALKER II to ensure that ev-erything is tight and well bonded.

3) Double check the balance of the air-plane. Do this with the fuel tank empty.

4) Check the control surfaces. All shouldmove in the correct direction and not bind inany way.

5) If your radio transmitter is equippedwith dual rate switches double check that theyare on the low rate setting for your first fewflights.

6) Check to ensure the control surfacesare moving the proper amount for both lowand high rate settings.

8) Properly balance the propeller. An outof balance propeller will cause excessive vi-bration which could lead to engine and/or air-frame failure.

We wish you many safe and enjoyable flights with your SPACE WALKER II .

7) Check the receiver antenna. It shouldbe fully extended and not coiled up inside thefuselage.

hand-made almost ready to fly r/c model aircraft · supplier and join your local r/c model flying...

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