SEAGULL MODELS SEA240 T-34 Mentor Instruction Manual

SEAGULL MODELS SEA240 T-34 Mentor

Product Information

• Product Code: SEA240
• Product Name: T-34 MENTOR
• Specifications:
  • Wingspan: 74.8 in (190 cm)
  • Wing area: 848.5 sq.in (54.7 sq.dm)
  • Weight: 11.2 lbs (5.1 kg)
  • Length: 56.3 in (143 cm)
  • Engine: 20-22cc
  • Power: 110
  • Radio: 8 channels with 7 servos
  • Electric conversion: Optional

Product Usage Instructions

WARNING

• This airplane is not a toy. Incorrect assembly or usage can cause injury to people or property. When flying this aeroplane, you assume all risk and responsibility.
• If you are inexperienced with basic R/C flight, it is strongly recommended to contact your R/C supplier and join your local R/C model Flying Club for training procedures and guidance on insurance and safety regulations.

Hinging the Flap

Note: The control surfaces (aileron, elevator, and rudder) are prehinged but not glued in place. Follow the steps below to properly adhere the hinges:

1. Carefully remove the flap from one of the wing panels, noting the position of the hinges.
2. Remove each hinge from the wing panel and flap, and place a T-pin in the center of each hinge.
3. Slide each hinge into the wing panel until the T-pin is snug against the wing panel to ensure equal hinge distribution.
4. Slide the wing panel onto the flap, maintaining a slight gap. Remove the T-pins and snug the flap against the wing panel, maintaining a gap of 1/64 or less.
5. Saturate each hinge with thin C/A glue, ensuring a gap of 1/64 or less is maintained throughout the length of the flap to the wing panel hinge line.

Additional Items Required

• 20cc-22cc gasoline engine
• Power 110 computer radio with 11 servos
• Glow plug suitable for the engine
• Propeller suitable for the engine
• Protective foam rubber for the radio system

Specfications

• Wingspan —————74.8 in (190 cm).
• Wing area —————848.5 sq.in ( 54.7sq.dm).
• Weight ——————-11.2 lbs ( 5.1 kg).
• Length ——————-56.3 in (143 cm).
• Engine ——————-20-22cc
  • —————————-Power 110
• Radio ——————–8 channels with 7 servos.
• Electric conversion: Optional.

INTRODUCTION

Thank you for choosing the T-34 MENTOR AF by SG MODELS. The T-34 MENTOR 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, plywood to make it stronger than the average ARE, 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 T-34 MENTOR is simply a joy. This instruction manual is designed to help you build a great flying aeroplane. Please read this manual throughly before starting assembly of your T-34 MENTOR. Use the parts listing below to indentify 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 a successful R/C flight. They will also be able to advise on any insurance and safety regulations that may apply.

Models

“ Graphics and specifications may change without notice ”.

KIT CONTENTS

SEA240/ T-34 MENTOR

• SEA24001 Fuselage
• SEA24002 Wing set
• SEA24003 Tail set
• SEA24004 Canopy
• SEA24005 Cowling
• SEA24006 Aluminium tube
• SEA24007 Pilot

ADDITIONAL ITEMS REQUIRED

• 20cc-22cc gasoline engine.
• Power 110
• Computer radio with 11 servos.
• Glow plug to suit engine.
• Propeller to suit engine.
• 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.
• hread-lock.
• Paper towels.

INSTALLATION INSTRUCTIONS

HINGING THE FLAP

Note: he 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.

1. Carefully remove the lap from one of the wing panels. Note the position of the hinges.
2. Remove each hinge from the wing panel and lap 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 lap is mounted to the wing.
3. Slide the wing panel on the lap until there is only a slight gap. the hinge is now centered on the wing panel and lap. Remove the T-pins and snug the lap against the wing panel. A gap of 1/64” or less should be maintained between the wing panel and lap.
4. Deflect the lap and completely saturate each hinge with thin C/A glue. he lap’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 lengh of the lap to the wing panel hinge line.
   • NOTE: he 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 lap.
5. Turn the wing panel over and select the lap 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 lap and wing panel.
6. Using a C/A remover/debonder and a paper towel, remove any excess C/A glue that may have accumulated on the wing or in the lap hinge area.
7. Repeat this process with the other wing panel, securely hinging the lap in place.
8. After both lap are securely hinged, firmly grasp the wing panel and lap to make sure the hinges are securely glued and cannot be pulled out. Do this by carefully applying medium pressure, trying to separate the lap from the wing panel. Use caution not to crush the wing structure and/ or lap.

Note: Work the lap up and down several times to “work in” the hinges and check for proper movement.

HINGING THE AILERON

Note: he 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.

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. his 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. 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 the aileron.
4. Deflect the aileron and completely saturate each hinge with thin C/A glue. he 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.
5. Turn the wing panel over and delect 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.
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.
7. Repeat this process with the other wing panel, securely hinging the aileron in place.
8. 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.

Note: Work the aileron up and down several times to “work in” the hinges and check for proper movement.

HINGING THE ELEVATOR

• Glue the elevator hinges in place using the same techniques used to hing the ailerons.

HINGING THE RUDDER

• Glue the rudder hinges in place using the same techniques used to hinge the ailerons.

INSTALL THE AILERONS CONTROL HORN

INSTALL FLAP CONTROL HORN

• Install the lap control horn using the same method as same as the aileron control horns.

INSTALL ELEVATOR CONTROL HORN

INSTALL RUDDER CONTROL HORN

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

INSTALLING THE FUSELAGE SERVOS

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

1. Install the rubber grommets and brass collets onto all servos. Test it the servos into the servo mounts.
2. Secure the servos with the screws provided with your radio system.

THROTTLE SERVO ARM INSTALLATION

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

INSTALLING THE SWITCH

• Install the switch into the precut hole in the side, in the fuselage.

INSTALLING THE STOPPER ASSEMBLY

1. Using a modeling knife, carefully cut of the rear portion of one of the 3 nylon tubes leaving 1/2” protruding from the rear of the stopper. his will be the fuel pick up tube.
2. Using a modeling knife, cut one length of silicon fuel line. Connect one end of the line to the weighted fuel pick up and the other end to the nylon pick up tube.
3. Carefully bend the second nylon tube up at a 45º angle. his tube is the vent tube.
4. Test it the stopper assembly into the tank. It may be necessary to remove some of the lashing around the tank opening using a modeling knife. If lashing is present, make sure none falls into the tank.
5. With the stopper assembly in place, the weighted pick-up should rest away from the rear of the tank and move freely inside the tank. he 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 satisied with the alignment of the stopper assembly tighten the 3 x 20mm machine screw until the rubber stopper expands and seals the tank opening. Do not overtighten the assembly as this could cause the tank to split.

FUEL TANK INSTALLATION

Warning: 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. Slide the fuel tank into the fuselage. Guide the lines from the tank through the hole in the firewall.
2. Use a plywood template to hold in place the fuel tank with C/A glue to secure the fuel tank inside the fuselage.
3. Connect the lines from the tank to the engine and muler. The vents line will connect to the mule and the line from the clunk to the carburetor.

Warning: Blow through one of the lines to ensure the fuel lines have not become kinked inside the fuel tank compartment. Air should low through easily.

ENGINE MOUNT INSTALLATION

1. Locate the items necessary to install the engine mount included with your model.
2. 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 thread lock on the screws to help prevent them from vibrating loose.

MOUNTING THE ENGINE – 20CC

1. Position the engine with the drive washer (145mm) forward of the firewall as shown.
2. Use a pin drill and 4mm drill bit to drill a small indentation in the mount for the engine mounting screw.
3. Use a drill to drill the four holes in the engine mount rails.
4. On the ire wall has the location for the throttle pusshrod tube (pre-drill).
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 irewall and the fuel tank mount.
6. Connect the Z-bend in the 450mm throttle pushrod to the outer hole of the carburetor arm.
7. lide 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.
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.
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.

COWLING

Please see these below pictures.

Because of the size of the cowl, it may be necessary to use a needle valve extension for the high speed needle valve. Make this out of sufficient length 1.5mm wire and install it into the end of the needle valve. Secure the wire in place by tightening the set screw in the side of the needle valve.

1. With the mufler, needle valve, and spark/ glow plug removed from the engine, slide the cowl in place over the engine. Temporarily install the propeller and spinner in order to find the exact location of the cowl. When satisied with the cowl placement, secure the cowl to the fuselage using masking tape.
2. Install the muler and muler extension onto the engine and make the cutout in the cowl for muler clearance. Connect the fuel and pressure lines to the carburetor, mulerand fuel filler valve. Secure the cowl to the fuselage using the M3x10mm screws.

ELECTRIC POWER CONVERSION

1. Locate the items neccessary to install the electric power conversion included with your model.
2. Recommend the items necessary to install the electric power conversion parts included with your model.
   • Motor: 50mm
   • Propeller: 15×10 ~ 16×10
   • ESC:  80A
   • Lipo Batteries: 8 cell 5200mA
3. Attach the electric motor box to the firewall suitable with the cross lines drawn on the electric motor box and firewall. Using M4x20mm to secure the motor box to the firewall. Please see pictures below.
4. Attach the motor to the front of the electric motor box using four 4mm blind nut, four M3x12mm hex head bolts to secure the motor. Please see picture shown.
5. Attach the motor to the front of the electric motor box using four 4mm blind nut, four M3x12mm hex head bolts to secure the motor. Please see picture shown.
6. 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.

INSTALLING THE SPINNER

• The propeller should not touch any part of the spinner cone.
• If it does, use a sharp modeling knife and carefully trim away the spinner cone where the propeller comes in contact with it.

INSTALLING THE AILERON SERVOS

Warning: Because the size of servos differ, you may need to adjust the size of the precut opening in the mount. he notch in the sides of the mount allows the servo lead to pass through.

1. Using a small weight (Weighted fuel pick-up works well) and string, feed the string through the wing as indicated.
2. 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.
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 the accelerator.
5. Use dental loss to secure the connection so they cannot become unplugged.
6. Secure the servo to the aileron hatch using Phillips screwdriver and the screws provided with the servo.
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. 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
9. Set the aileron hatch in place and use a Phillips screw driver to install it with four wood screws.

INSTALLING THE AILERON SERVO

• Repeat the procedure for the aileron servo.

INSTALLING THE FLAP SERVO

• Repeat the procedure for the lap servo.

INSTALLING THE LIGHT COVER

Please see below pictures.

AILERON PUSHROD INSTALLATION

Please see below pictures.

• Use a felt tip pen to mark the wire where it crosses the hole. Use a pair of pliers to put a shrp 90-degree bend in the wire at the mark.

INSTALLING THE FLAP PUSHROD

• Repeat the procedure for the aileron pushrod.

INSTALLING RETRACTABLE LANDING GEAR

• Locate items necessary to install Sprin Landing Gear.
• You use this fork set JP ER-120-84 degree.

• Install the retract nose gear in the fuselage.
• We recommend you use a separate mini-size servo to steer the nose wheel, as shown. (he steering servo, pushrod, and plywood for mount are not provided.)

INSTALLING THE HORIZONTAL STABILIZER

1. 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.
2. Using a modeling knife, carefully remove the covering at mounting slot of horizontal stabilizer ( both side of the fuselage).
3. Place the stabilizer on the stabilizer mounting platform at the rear of the fuselage.
4. With the horizontal stabilizer centered and held irmly in place, temporarily install the vertical stabilizer and use a pen to draw lines onto the stabilizer where it and the fuselage sides meet. Do this on both the right and let sides and top and bottom of the stabilizer.
5. Remove the stabilizer. Using the lines you just drew as a guide, carefully remove the covering from between them using a modeling knife.
   • WARNING: 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.
6. 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.
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 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.

INSTALLING VERTICAL STABILIZER

1. Slide the vertical stabilizer back in place. Using a triangle, check to ensure that the vertical stabilizer is aligned 90º to the horizontal stabilizer.
2. When you are sure that everything is aligned correctly, mix up a generous amount of 30 Minute Epoxy. Apply a thin layer to the bottom of the vertical stabilizer mounting area. Apply epoxy to the iller blocks. Set the vertical stabilizer assembly in place. As you do this, install the bottom rudder hinge into the fuselage without any glue. Re-align the vertical stabilizer carefully. 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. Allow the epoxy to fully cure before proceeding. Ater the epoxy is dry, glue the lower rudder hinge with thin CA.

RUDDER PUSHROD INSTALLATION

1. Locate items necessary to install rudder pushrod.
2. Rudder pushrods assembly as pictures below.

ELEVATOR PUSHROD INSTALLATION.

1. Locate items necessary to install elevator pushrod.
2. Elevator pushrods assembly as pictures below.
   • Repeat steps to install the remaining elevator pushrod horn.

INSTALLATION PILOT AND CANOPY

1. Locate items necessary to install pilot, seats.
2. A scale pilot is included with this ARF. The pilot included itting well to the cockpit. (or you can order others scale pilot figures made by SG Models. hey are available at SG Models distributors.)
   • 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.
3. Position the pilot figure on the canopy floor as shown. Use epoxy to glue the base of the pilot image to the cockpit floor, please see the pictures as shown.
4. Position the canopy onto the fuselage. Trace around the canopy and onto the fuselage using a felt-tipped pen. Carefully cut and remove covering material from the fuselage where the canopy makes contact, exposing the bare wood. hen permanently glue the canopy in place with epoxy glue or special “canopy glue”.

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 the decal on the model where desired, using the photos on the box and aid in their location. APPLY THE DECALS.
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 the decal on the model where desired, using the photos on the box and aid in their location.

INSTALLING BATTERY – RECEIVER

1. Plug the ive servo leads and the switch lead into the receiver. Plug the battery pack leads into the switch.
2. Wrap the receiver and battery pack in the protective foam rubber to protect them from vibration.

Note: If you choose to make the wing lights operational, you will need to install a 1.5 Volt power source, install an additional switch, and complete the wiring.We suggest using a Y-harness and servo connectors to complete the wiring, so the wiring can be disconnected for wing removal.

ATTACHMENT WING- FUSELAGE

• Slide the aluminum tube into the fuselage.
• Insert two wing panels as pictures below.
• Insert canopy hatch on fuselage as pictures below.

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 120 MM BACK FROM THE LEADING EDGE OF THE WING AT THE WING ROOT.
2. Mount the wing to the fuselage. Using a couple of pieces of masking tape, place them on the top of the wing 120mm back from the leading edge of the wing at the wing root.
3. With the model inverted, place your Fingers on the masking tape and carefully light the plane.

Accurately mark the balance point on the top of the wing on both sides of the fuselage. The balance point is located 120mm back from the leading edge of the wing at the wing root. his is the balance point at which your model should balance for your first lights. Later, you may wish to experiment by shifting the balance up to 10mm forward or back to change the lying 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 at makes the model more agile with a lighter and snappier ”feel”. In any case, please start at the location we recommend.

• With the wing 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.
• Lit the model. If the tail drops when you lit, 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.
• 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.

CONTROL THROWS

• Ailerons:
  • High Rate: 15mm
  • Low Rate: 12mm
• Elevator:
  • High Rate: 15mm
  • Low Rate: 12 mm
• Rudder:
  • High Rate: 25mm
  • Low Rate: 20 mm

FLIGHT PREPARATION

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

• Plug in your radio system per the manufacturer’s instructions and turn everything on.
• Check the elevator first. Pull back on the elevator stick. The elevator halves should move up. If it they do not, lip the servo reversing switch on your transmitter to change the direction.
• 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, lip the servo reversing switch on your transmitter to change the direction.
• 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.
• 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 lying.
2. Check every bolt and every glue joint in the T-34 MENTOR 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 lights.
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 lights with your T-34 MENTOR.

CONTACT

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

• Factory: 12/101A – Hamlet 4 – Le Van Khuong Street – Dong hanh Ward – Hoc Mon District – Ho Chi Minh City – Viet Nam.
• Office: 62/8 Ngo Tat To Street – Ward 19 – Binh hanh District – Ho Chi Minh City – Viet Nam
• Phone: 848 – 37114542 or 848- 36018777
• Website: www.SeagullModels.com
• Email: [email protected]
• Facebook: www.facebook.com/SeaGullModels.

References

• Seagull Models Manufacturing and Trading Company Co.,Ltd

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