Seagull Models Super Weekend Special 98.4" 20cc Assembly Manual

Specifications

• Wingspan: 250 cm (98.4 inches)
• Length: 161.5 cm (63.6 inches)
• Wing area: 78.5 sq.dm (1216.8 sq.in)
• Weight: 5.4 kg (11.9 lbs)
• Engine: 15cc - 20cc (2 stroke) / 115 - 150 (4 stroke)
• Radio: 5 channels, 5 servos
• Motor: 90-1800 Watts
• Propeller: 16x8 ~ 18x8
• ESC: 85A
• Battery: 6S - 8S Lipo

Introduction

Thank you for choosing the Super Weekend Special 98.4" 20cc ARTF by SG MODELS. The Super Weekend Special 98.4" 20cc was designed with the intermediate/advanced sport flyer in mind. It is a semi-scale airplane which is easy to fly and quick to assemble. The airframe is conventionally built using balsa and plywood to make it stronger than the average ARTF, yet the design allows the aeroplane to be kept 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 Super Weekend Special 98.4" 20cc 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 Super Weekend Special 98.4" 20cc. 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.

If you are inexperienced with basic R/C flight, we strongly recommend you contact your R/C supplier and join your local R/C model Flying Club. R/C Model Flying Clubs offer a variety of training procedures designed to help the new pilot on his way to successful R/C flight. They will also be able to advise on any insurance and safety regulations that may apply.

Kit Contents

SEA413 Super Weekend Special 98.4" 20cc

1. Fuselage
2. Wing set (2)
3. Tail set (2)
4. Canopy
5. Cowling
6. Wing tube
7. Landing gear
8. Fuel tank
9. Tail wheel
10. Pushrod
11. Ep Motor box
12. Pilot
13. Spinner

Additional Items Required

• 15-20cc gasoline engine.
• Computer radio 4 channel with 5 servos.
• Glow plug to suit engine.
• Propeller to suit engine 16x8-18x8.
• Protective foam rubber for radio system.

Tools & Supplies Needed

• Thin cyanoacrylate glue.
• Medium 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.
• Thread-lock.
• Paper towels.

Hinging the Aileron

Note: The control surfaces, including the ailerons, elevators, and rudder, are pre-hinged 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.

1. Carefully remove the aileron from one of the wing panels. Note the position of the hinges. [Image: Aileron control horn with C/A hinge indicated]
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. This will help ensure an equal amount of hinge is on either side of the hinge line when the aileron is mounted to the aileron. Slide the wing panel on the aileron 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 should be maintained between the wing panel and aileron. [Image: Wing panel with hinges aligned and T-pins inserted]
3. Deflect the aileron and completely saturate each hinge with thin C/A glue. The aileron's 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 length of the aileron to the wing panel hinge line. NOTE: The hinge is 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. [Image: Applying C/A glue to hinges]
4. [Image: Applying C/A glue to hinges] Turn the wing panel over and deflect 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. 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. Repeat this process with the other wing panel, securely hinging the aileron in place.
5. [Image: Securing hinged aileron] After both ailerons are securely hinged, 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.
6. [Image: Working the aileron] Note: Work the aileron up and down several times to “work in” the hinges and check for proper movement.

Install the Ailerons Control Horn

1. Locate the aileron control horns. The taller control horn is used for the ailerons, and the shorter horn for the flaps. [Image: Aileron and flap control horns]
2. Use sandpaper to scuff the bottom of the aileron and flap control horns. Use a paper towel and isopropyl alcohol to remove any oils or debris from the control horns. [Image: Sanding control horn]
3. Check the fit of the control horns to the aileron and flap. They should rest flush against the control surface as shown. [Image: Control horn fitted to aileron]
4. Place low-tack tape 1/32 inch (1mm) from the control horn slot. This will prevent epoxy from getting on the control surface when the control horns are glued in place. [Image: Taping around control horn slot]
5. Remove the control horns from the control surfaces. Apply epoxy to the slot in the aileron and flap. Make sure the epoxy gets into the slot for a good bond between the surfaces and control horn. [Image: Applying epoxy to slot]
6. Apply epoxy to the area of the control horns that fit into the slots. Use enough epoxy so the control horns will be fully bonded to the fied surfaces. [Image: Applying epoxy to control horn]
7. Before the epoxy fully cures, remove the tape from around the control horn. This will allow the epoxy to flow around the control horn, creating a small fillet between the control horn and surface for a finished look and secure bond. [Image: Removing tape after epoxy application]

Installing the Aileron Servos

Maximum Servo spec. Torque: 102 oz-in (7.3 kg-cm) @ 6.0V; 160 oz-in (11.5 kg-cm) @ 8.4V;

1. [Image: Servo dimensions diagram]
2. [Image: Two servos] Because the size of servos differ, you may need to adjust the size of the precut opening in the mount. The notch in the sides of the mount allow the servo lead to pass through.
3. Place the servo between the mounting blocks and space it from the hatch. Use a pencil to mark the mounting hole locations on the blocks. [Image: Marking servo mounting holes]
4. Use drill bit in a pin vise to drill the mounting holes in the blocks. [Image: Drilling servo mounting holes]
5. Apply 2-3 drops of thin C/A to each of the mounting holes. Allow the C/A to cure without using accelerator. [Image: Applying C/A to mounting holes]
6. Use dental floss or heat shrink tubing to secure the connection between the servo and extension wire so they cannot become unplugged accidentally. [Image: Securing servo wire connection]
7. Secure the servo to the aileron hatch using a proper driver and the screws provided with the servo. [Image: Servo secured in hatch]
8. Remove the string from the wing at the servo location and use the tape to attach it to the servo extension lead. Pull the lead through the wing and remove the string. [Image: Pulling servo lead through wing]
9. [Image: Servo lead routed through wing]
10. Apply 2-3 drops of thin C/A to each of the mounting aileron hatch mounting tabs in the wing. Allow the C/A to cure without using accelerator. [Image: Applying C/A to mounting tabs]
11. Set the aileron hatch in place and use a Phillips screw driver to install it with four wood screws. [Image: Installing aileron hatch]

Aileron Pushrod Installation

Please study images below.

1. Use a felt tip pen to mark the wire where it crosses the hole. Use a pair of pliers to put a sharp 90-degree bend in the wire at the mark. [Image: Marking and bending pushrod wire]
2. Make a 90-degree bend at the mark and cut off the excess wire leaving 8mm past the bend. [Image: Cutting pushrod wire]
3. Connect the linkage as shown and secure the control wire with a wire keeper. [Image: Connecting linkage with wire keeper]

Wing Assembly

1. Attach the aluminum tube into wing. [Image: Aluminum tube inserted into wing]
2. [Image: Wing halves being joined]
3. [Image: Wing halves joined]
4. [Image: Wing halves joined with screws]
5. [Image: Screw and washer for wing assembly]

Install Hinge for Stabilizer and Elevator

Please study images below.

1. [Image: Hinges for stabilizer and elevator]
2. [Image: Stabilizer positioned on fuselage]
3. [Image: Stabilizer positioned on fuselage]
4. [Image: Applying C/A glue to stabilizer hinges]
5. [Image: Applying C/A glue to stabilizer hinges]
6. [Image: Applying C/A glue to stabilizer hinges]
7. [Image: Applying C/A glue to stabilizer hinges]
8. [Image: Applying C/A glue to stabilizer hinges]
9. [Image: Stabilizer mounted on fuselage]

Install Elevator Control Horn

Please study images below.

1. [Image: Fiberglass control horn]
2. [Image: Sanding control horn]
3. [Image: Applying epoxy to control horn slot]
4. [Image: Applying epoxy to control horn]
5. [Image: Applying epoxy to control horn]
6. [Image: Applying epoxy to control horn]
7. [Image: Applying epoxy to control horn]

Installing the Horizontal Stabilizer

Using a ruler and a pen, locate the centerline of the horizontal stabilizer, at the trailing edge, and place a mark. Use a triangle and extend this mark, from back to front, across the top of the stabilizer. Also extend this mark down the back of the trailing edge of the stabilizer.

1. Using a modeling knife, carefully remove the covering at mounting slot of horizontal stabilizer (both sides of fuselage). [Image: Removing covering from fuselage slot]
2. Slide the stabilizer into place in the precut slot in the rear of the fuselage. The stabilizer should be pushed firmly against the front of the slot. [Image: Sliding stabilizer into fuselage]
3. 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. [Image: Marking stabilizer position]
4. Remove the stabilizer. Using the lines you just drew as a guide, carefully remove the covering from between them using a modeling knife. [Image: Removing covering based on marks]
5. When cutting through the covering to remove it, cut with only enough pressure to only cut through the covering itself. Cutting into the balsa structure may weaken it. Using a modeling knife, carefully remove the covering that overlaps the stabilizer mounting platform sides in the fuselage. Remove the covering from both the top and the bottom of the platform sides.
6. When you are sure that everything is aligned correctly, mix up a generous amount of 30 Minute Epoxy. Apply a thin layer to the top and bottom of the stabilizer mounting area and to the stabilizer mounting platform sides in the fuselage. Slide the stabilizer in place and realign. Double check all of your measurements once more before the epoxy cures. Hold the stabilizer in place with T-pins or masking tape and remove any excess epoxy using a paper towel and rubbing alcohol. [Image: Applying epoxy and securing stabilizer]
7. [Image: Applying epoxy and securing stabilizer]
8. [Image: Applying epoxy and securing stabilizer]

Installing the Vertical Stabilizer

Please study images below.

1. Using a modeling knife, remove the covering from over the precut hinge slot cut into the lower rear portion of the fuselage. [Image: Removing covering from fuselage hinge slot]
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. [Image: Marking vertical stabilizer position]
3. Slide the vertical stabilizer back in place. Using a triangle, check to ensure that the vertical stabilizer is aligned 90° to the horizontal stabilizer. [Image: Aligning vertical stabilizer with horizontal stabilizer]
4. [Image: Applying epoxy to vertical stabilizer mounting area]
5. [Image: Applying epoxy to vertical stabilizer mounting area]
6. [Image: Applying epoxy to vertical stabilizer mounting area]
7. [Image: Vertical stabilizer mounted on fuselage]

Install Rudder Control Horn

Repeat steps to install the rudder control horn as same as steps done for elevator.

1. [Image: Fiberglass control horn for rudder]
2. [Image: Sanding rudder control horn]
3. [Image: Applying epoxy to rudder control horn slot]
4. [Image: Applying epoxy to rudder control horn]
5. [Image: Applying epoxy to rudder control horn]
6. [Image: Applying epoxy to rudder control horn]
7. [Image: Applying epoxy to rudder control horn]

Tail - Dagger Conversion

If you are installing the tail wheel bracket, follow the instructions below. If you have already installed the nose wheel assembly, please skip to hinging the rudder.

1. Test fit the tail gear to make sure that it fits properly. When you are happy with the fit, attach the tail gear using the two M3x20mm wood screws. [Image: Test fitting tail gear]
2. See below pictures how to assembly the tail-dragger conversion. [Image: Tail-dragger conversion parts]
3. [Image: Tail-dragger conversion assembly step 1]
4. [Image: Tail-dragger conversion assembly step 2]
5. [Image: Tail-dragger conversion assembly step 3]
6. [Image: Tail-dragger conversion assembly step 4]
7. [Image: Tail-dragger conversion assembly step 5]
8. [Image: Tail-dragger conversion assembly step 6]
9. [Image: Tail-dragger conversion assembly step 7]
10. [Image: Tail-dragger conversion assembly step 8]
11. [Image: Tail-dragger conversion assembly step 9]
12. [Image: Tail-dragger conversion assembly step 10]
13. [Image: Tail-dragger conversion assembly step 11]
14. [Image: Tail-dragger conversion assembly step 12]
15. [Image: Tail-dragger conversion assembly step 13]
16. [Image: Tail-dragger conversion assembly step 14]
17. [Image: Tail-dragger conversion assembly step 15]
18. Hold the rudder in place and mark it where the music wire will enter. When you are happy with the fit, fill the hole with epoxy and use CA to glue in the rudder hinges. [Image: Marking rudder for music wire]

Elevator Pushrod Installation

Locate items necessary to install rudder pushrod.

1. Install the elevator control horn using the same method as with the aileron control horns. Position the elevator control horn on the both side of elevator. [Image: Elevator control horn installation]
2. Thread one clevis and M2 lock nut on to each elevator control rod. Thread the horns on until they are flush with the ends of the control rods. [Image: Clevis and lock nut on elevator control rod]
3. [Image: Elevator and rudder pushrods assembly diagram]
4. [Image: Elevator and rudder pushrods assembly]
5. [Image: Elevator and rudder pushrods assembly]
6. [Image: Elevator and rudder pushrods assembly]
7. [Image: Elevator and rudder pushrods assembly]

Rudder Pushrod Installation

Locate items necessary to install rudder pushrod.

1. [Image: Rudder pushrod components]
2. [Image: Rudder pushrod linkage diagram]
3. [Image: Rudder pushrod connected to control horn]
4. [Image: Rudder pushrod connected to control horn]
5. [Image: Marking servo position for rudder pushrod]
6. [Image: Marking servo position for rudder pushrod]
7. [Image: Marking servo position for rudder pushrod]
8. [Image: Servo mounted for rudder pushrod]
9. [Image: Servo mounted for rudder pushrod]
10. [Image: Servo mounted for rudder pushrod]
11. [Image: Servo mounted for rudder pushrod]

Installing the Main Landing Gear to Fuselage

Please study images below.

1. [Image: Main landing gear components]
2. [Image: Attaching landing gear strut to fuselage bracket]
3. [Image: Attaching landing gear strut to fuselage bracket]
4. [Image: Attaching landing gear strut to fuselage bracket]
5. [Image: Attaching wheel to landing gear strut]
6. [Image: Securing wheel with screw]
7. [Image: Attaching wheel to landing gear strut]
8. [Image: Attaching wheel to landing gear strut]
9. [Image: Attaching wheel to landing gear strut]
10. [Image: Attaching wheel to landing gear strut]
11. [Image: Attaching wheel to landing gear strut]
12. [Image: Attaching wheel to landing gear strut]
13. [Image: Attaching wheel to landing gear strut]
14. [Image: Attaching wheel to landing gear strut]
15. [Image: Screws for landing gear attachment]
16. [Image: Applying Loctite to screw]
17. [Image: Landing gear attached to fuselage]
18. [Image: Landing gear attached to fuselage]
19. [Image: Landing gear attached to fuselage]
20. [Image: Landing gear attached to fuselage]

Installing the Fuselage Servos

Because the size of servos differ, you may need to adjust the size of the precut opening in the mount. The notch in the sides of the mount allow the servo lead to pass through.

Install the rubber grommets and brass collets into all servos. Test fit the servos into the fuselage servo mounts.

1. [Image: Throttle, elevator, and rudder servos installed in fuselage]

Throttle Servo Arm Installation

Install adjustable servo connector in the servo arm as same as picture below:

1. [Image: Attaching adjustable servo connector to servo arm]
2. [Image: Servo arms installed on servos]

Installing the Receiver Switch

1. Install the switch into the precut hole in the side, in the fuselage. [Image: Installing receiver switch]
2. Trim and cut. [Image: Trimming excess material]
3. [Image: Receiver switch installed]

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 the tank is installed inside the fuselage, it may be difficult to determine which is which.

1. [Image: Fuel tank]
2. Slide the fuel tank into the fuselage. Guide the lines from the tank through the hole in the firewall. [Image: Sliding fuel tank into fuselage]
3. [Image: Fuel tank installed in fuselage]

Engine Mount Installation

Locate the items necessary to install the engine mount included with your model.

1. Use four 4x30mm head bolts and four 4mm washers to attach the engine mount rails to the firewall. Tighten the screws. Make sure to use threadlock on the screws to help prevent them from vibrating loose. [Image: Engine mount rails attached to firewall]
2. [Image: Applying thread locker glue]
3. Use a drill to drill the four holes in the engine mount rails. [Image: Drilling holes in engine mount rails]

Mounting the Engine

Position the engine with the drive washer (145mm) forward of the firewall as shown.

1. Use a pin drill and 4mm drill bit to drill a small indentation in the mount for the engine mounting screw. [Image: Drilling pilot holes for engine mounting]
2. The firewall has the location for the throttle pushrod tube (pre-drill). 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. Connect the Z-bend in the 450mm throttle pushrod to the outer hole of the carburetor arm. 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. [Image: Mounting engine to firewall]
3. [Image: Mounting engine to firewall]
4. [Image: Mounting engine to firewall]

Throttle Servo Installation

Attach throttle pushrod to the carburetor throttle arm with the ball link.

1. [Image: Attaching throttle pushrod to carburetor]
2. [Image: Attaching throttle pushrod to carburetor]
3. 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. [Image: Installing throttle servo horn]
4. [Image: Installing throttle servo horn]
5. [Image: Installing throttle servo horn]

Ignition Installation

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.

1. [Image: CDI ignition unit]
2. [Image: CDI ignition unit]
3. [Image: CDI ignition unit wiring]
4. [Image: CDI ignition unit wiring]
5. [Image: CDI ignition unit wiring]
6. [Image: CDI ignition unit mounted]

Cowling

Please study images below.

1. [Image: Cowling part 1]
2. [Image: Cowling part 2]
3. [Image: Cowling part 3]
4. Install the muffler and muffler 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 filter valve. Secure the cowl to fuselage using the M3x10mm socket head screws. Putting a small length of silicon fuel tube under the head of the screw helps with vibration. [Image: Attaching cowl to fuselage]
5. [Image: Attaching cowl to fuselage]
6. [Image: Attaching cowl to fuselage]
7. [Image: Attaching cowl to fuselage]
8. [Image: Attaching cowl to fuselage]
9. [Image: Attaching cowl to fuselage]
10. [Image: Attaching cowl to fuselage]

Electric Power Conversion

Locate the items necessary to install the electric power conversion included with your model.

1. [Image: Electric power conversion components]

Recommend the items necessary to install the electric power conversion parts included with your model.

• Motor: 90 - 1800 Watts
• Propeller: 16x8 ~ 18x8
• ESC: 85A
• 6S - 8S Lipo

Motor Box Installation

Attach the electric motor box to the firewall centered with the cross lines drawn on the electric motor box and firewall. Using M4x25mm to secure the motor box to the firewall. Please see pictures below.

1. [Image: Electric motor box]
2. [Image: Attaching motor box to firewall]
3. [Image: Attaching motor box to firewall with M4x25mm bolts and washers]
4. Attach the motor mount to the front of the electric motor box using four 4mm blind nut, four M4x25mm hex head bolts to secure the motor. Please see picture shown. [Image: Attaching motor mount to motor box]
5. [Image: Attaching motor mount to motor box]
6. Then, use 3mm drill bit to enlarge the holes on the electric motor box. [Image: Enlarging holes on motor box]
7. [Image: Enlarging holes on motor box]
8. [Image: Motor secured with blind nuts]

Motor Installation

Attach the motor to the front of the electric motor box using four 3mm blind nut, four M3x20mm hex head bolts to secure the motor. Please see picture shown.

1. [Image: Attaching motor to motor box]
2. [Image: Attaching motor to motor box]
3. [Image: Attaching motor to motor box]
4. 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. [Image: Attaching speed control to motor box]

Wing Fillet Installation

Please study images below.

1. [Image: Wing fillet components]
2. [Image: Applying CA glue to wing fillet area]
3. [Image: Applying CA glue to wing fillet area]
4. [Image: Applying CA glue to wing fillet area]

Installation Cockpit, Pilot and Canopy

Locate items necessary to install.

1. [Image: Cockpit, pilot, and canopy components]
2. [Image: Cockpit area of fuselage]
3. [Image: Applying epoxy to pilot figure]
4. [Image: Applying epoxy to pilot figure]
5. [Image: Pilot seated in cockpit]
6. [Image: Installing canopy]
7. [Image: Applying CA glue to canopy edge]
8. [Image: Canopy installed]
9. [Image: Applying CA glue to canopy edge]
10. [Image: Applying CA glue to canopy edge]
11. [Image: Canopy installed with text]
12. [Image: Canopy installed with text]

Installing the Battery-Receiver

Plug the servos leads and the switch lead into the receiver. Plug the battery pack lead into the switch also.

Wrap the receiver and battery pack in the protective foam rubber to protect them from vibration.

Route the antenna in the antenna tube inside the fuselage and secure it to the bottom of fuselage using a plastic tape.

1. [Image: Receiver and battery installed in fuselage]

Attachment Wing - Fuselage

Attach the aluminium tube into fuselage.

1. [Image: Wing tube and fasteners]
2. [Image: Attaching wing to fuselage]
3. [Image: Attaching wing to fuselage]

Apply the Decals

1. If all the decals are precut and ready to stick. Please be certain the model is clean and free from oily fingerprints and dust. Position decal on the model where desired, using the photos on the box and aid in their location.
2. If all the decals are not precut, please use scissors or a sharp hobby knife to cut the decals from the sheet. Please be certain the model is clean and free from oily fingerprints and dust. Position decal on the model where desired, using the photos on the box and aid in their location.

Balancing

1. It is critical that your airplane be balanced correctly. Improper balance will cause your plane to lose control and crash. THE CENTER OF GRAVITY IS LOCATED 110MM BACK FROM THE LEADING EDGE OF THE WING AT THE WING ROOT.
2. Mount the wing to the fuselage. Place a piece of masking tape on the top of each wing 110mm back from the leading edge at the wing root.
3. With the model inverted, place your fingers on the masking tape and carefully lift the plane. This is the point at which your model should balance for your first flights. Later, you may wish to experiment by shifting the balance up to 110mm forward or back to change the flying characteristics. Moving the balance forward may improve the smoothness and arrow-like tracking, but it may then require more speed for take off and make it more difficult to slow down for landing. Moving the balance aft makes the model more agile with a lighter and snappier "feel". In any case, please start at the location we recommend.

*If possible, first attempt to balance the model by changing the position of the receiver battery and receiver. If you are unable to obtain good balance by doing so, then it will be necessary to add weight to the nose or tail to achieve the proper balance point.

With the wings attached to the fuselage, all parts of the model installed (ready to fly), and empty fuel tanks, hold the model at the marked balance point with the stabilizer level.

Lift the model. If the tail drops when you lift, the model is “tail heavy" and you must add weight* to the nose. If the nose drops, it is “nose heavy" and you must add weight* to the tail to balance.

[Image: Measuring 110mm from leading edge for balance point]

Control Throws

[Diagram showing control surface throws for aileron, elevator, and rudder]

Flight Preparation

Check the operation and direction of the elevator, rudder, ailerons and throttle.

• A) Plug in your radio system per the manufacturer's instructions and turn everything on.
• B) Check the elevator first. Pull back on the elevator stick. The elevator halves should move up. If they do not, flip the servo reversing switch on your transmitter to change the direction.
• C) Check the rudder. Looking from behind the airplane, move the rudder stick to the right. The rudder should move to the right. If it does not, flip the servo reversing switch on your transmitter to change the direction.
• D) Check the throttle. Moving the throttle stick forward should open the carburetor barrel. If it does not, flip the servo reversing switch on your transmitter to change the direction.
• E) From behind the airplane, look at the aileron on the right wing half. Move the aileron stick to the right. The right aileron should move up and the other aileron should move down. If it does not, flip the servo reversing switch on your transmitter to change the direction.

Preflight Check

• □1) Completely charge your transmitter and receiver batteries before your first day of flying.
• 2) Check every bolt and every glue joint in the Super Weekend Special 98.4" 20cc to ensure that everything is tight and well bonded.
• 3) Double check the balance of the airplane. Do this with the fuel tank empty.
• 4) Check the control surfaces. All should move in the correct direction and not bind in any way.
• 5) If your radio transmitter is equipped with dual rate switches, double check that they are on the low rate setting for your first few flights.
• 6) Check to ensure the control surfaces are moving the proper amount for both low and high rate settings.
• 7) Check the receiver antenna. It should be fully extended and not coiled up inside the fuselage.
• 8) Properly balance the propeller. An out of balance propeller will cause excessive vibration which could lead to engine and/or airframe failure.

We wish you many safe and enjoyable flights with your Super Weekend Special 98.4" 20cc.

Contact Information

If you have any queries, or are interested in our products, please feel free to contact Seagull Models.

Factory: 12/101A - Hamlet 4 - Le Van Khuong Street - Dong Thanh Ward - Hoc Mon District - Ho Chi Minh City - Viet Nam.

Office: 62/8 Ngo Tat To Street - Ward 19 - Binh Thanh District - Ho Chi Minh City - Viet Nam

Phone: 848 - 86622289 or 848- 3601877

Website: www.SeagullModels.com

Email: Sales@seagullmodels.com

Facebook: www.facebook.com/SeaGullModels.