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Seagull Models TWIN COMANCHE, Assembly Manual, Page: 7 / 43

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Seagull Models TWIN COMANCHE Assembly Manual Download Page 7

7

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2)  Position the control horn on the bottom of
the aileron. You will see pre-drill hole 3mm for
the horn mounting screw on the aileron.

3)   Place epoxy into hole. This will harden the
threads and prevent the crews from pulling
loose.

3mm.

Aileron control horn.

4)   Thread a control horn end with aluminum
washer, lock nut until the top edge of the end is
18mm from the vase of the horn as shown.

 Install the flap control horn using the same
method as  same as  the aileron control horns.

 INSTALL FLAP  CONTROL HORN.

2 sets.

3x35mm.

ALUMINUM WASHER

.

ALUMINUM WASHER

.

CONTROL HORN
     M3 SCREW.

18mm

.

Epoxy.

Wing

Wing

Epoxy

.

M3 LOCK NUT

.

ALUMINUM WASHER

.

ALUMINUM WASHER

.

CONTROL HORN
     M3 SCREW.

18mm

.

Epoxy.

FLAP

FLAP

Epoxy

.

M3 LOCK NUT

.

Summary of Contents for TWIN COMANCHE

Page 1: ... MANUAL Specifications Wingspan 76 4in 194cm Wingarea 830 8sq in 53 6sqdm Weight 10 6 11lbs 4 8 5kg Length 51 3in 130 3cm Engine 0 46 0 55cu in 2 stroke 0 72 0 82cu in 4 stroke Radio 6channelswith10 servos Retractslandinggear excluded optional Electric conversion optional ...

Page 2: ...uction manual is designed to help you build a great flying aeroplane Please read this manualthoroughlybeforestartingassemblyofyour TWINCOMANCHE Usethepartslistingbelow 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...

Page 3: ...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 HINGING THE FLAP 1 Fuselage 2 Left wing panel 3 Right wing panel 4 Tail set 2 5 Aluminum wing tube 6 wheel 3 7 Fiberglass cowl 8 Speing landing gear 9...

Page 4: ...e 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 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 aileron until the T pin is snug against the aileron This will help ensure an equal amount of hinge is on either side of the hinge li...

Page 5: ...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 Work the aileron up and down several times to work in the hinges and check for proper movement Note HINGING THE ELEVATOR Glue the rudder hinges in place using the same techniques used to hinge the ailerons HINGING THE RUDDER Glue the rudder hin...

Page 6: ... THE AILERONS CONTROL HORN 3 Once the epoxy cures and use a covering iron to seal the covering on the wing and over the wing tip 1 Locate the hardware necessary to install the control horns for the ailerons 2 sets 3x35mm Install plastic wing tip to wing end ...

Page 7: ...ron control horn 4 Thread a control horn end with aluminum washer lock nut until the top edge of the end is 18mm from the vase of the horn as shown Install the flap control horn using the same method as same as the aileron control horns INSTALL FLAP CONTROL HORN 2 sets 3x35mm ALUMINUM WASHER ALUMINUM WASHER CONTROLHORN M3 SCREW 18mm Epoxy Wing Wing Epoxy M3 LOCK NUT ALUMINUM WASHER ALUMINUM WASHER...

Page 8: ...as the aileron control horns INSTALL ELEVATOR CONTROL HORN 2 sets 3x35mm 18mm Epoxy Elevator Horizontal Stabilizer INSTALL RUDDER CONTROL HORN 3mm Repeat steps to install the rudder control horn as same as steps done for ailerons 2 sets 3x35mm Aluminum Washer CONTROLHORN M3 SCREW M3 LOCK NUT Epoxy Aluminum Washer Elevator Horizontal Stabilizer ...

Page 9: ...s same as picture below Adjustable Servo connector Servo arm Loctite secure 1 PCS 1 Install the rubber grommets and brass collets onto the throttle servo Test fit the servo into the aileron servo mount 2 Secure the servos with the screws provided with your radio system Because the size of servos differ you may need to adjust the size of the precut open ing in the mount The notch in the sides of th...

Page 10: ...INSTALLING THE FUSELAGE SERVOS Throttle servo THROTTLE SERVO ARM INSTALLATION Install adjustable servo connector in the servo arm as same as picture below Adjustable Servo connector Servo arm Loctite secure 1 PCS Throttle servo arm Switch Trim and cut 3 32 Hole INSTALLING THE SWITCH Install the switch into the precut hole in the side in the fuselage ...

Page 11: ...h Use a pencil to mark the mounting hole locations on the blocks Because the size of servos differ you may need to adjust the size of the precut open ing in the mount The notch in the sides of the mount allow the servo lead to pass through 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...

Page 12: ...TWIN COMANCHE Instruction Manual 12 M2x12mm M2x12mm Attach the string to the servo lead and carefully thread it though the wing Aileron servo Flap servo Small weight String ...

Page 13: ...rough the wing and remove the string Flap servo Aileron servo 1 Mark the control wire where it crosses the servo arm hole Bend at the mark AILERON PUSHROD HORN INSTALLATION Mark Pen 2 Make a 90 degree bend at the mark and cut off the excess wire leaving 8mm past the bend Cut 8mm Wing Aileron M2 lock nut Snap keeper Servo arm 3 Connect the linkage as shown and secure the control wire with a snap ke...

Page 14: ... 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 4x20mm INSTALLING THE FLAP PUSHROD M2 lock nut Wing Flap Repeat the procedure for the aileron pushrod Repeat the procedure for the other aileron servo 118mm 1 Position the engine with the drive washer 118mm forward of the firewall as shown ENGINE 46 55 2 ST...

Page 15: ...g screw 3 Use a drill to drill the four holes in the engine mount rails 2mm 2mm 118mm 2 Use a pin drill and 2mm drill bit to drill a small indentation in the mount for the engine mounting screw 1 Position the engine with the drive washer 118mm forward of the firewall as shown 2mm ENGINE 72 82 4 STROKE Knife Epoxy Epoxy Epoxy ...

Page 16: ...rear of the stopper This will be the fuel pick up tube INSTALLING THE STOPPER ASSEMBLY 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 Plywood template 3 Use a drill to drill the four holes in the engine mount rails 2mm Knife Epoxy Epoxy Epoxy ...

Page 17: ...s 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 from the rear of the tank 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...

Page 18: ...r the pushrod wire Center the throttle stick and trim and install the servo horn perpendicular to the servo center line 4 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 Epoxy MOUNTING THE ENGINE ENGINE 46 ...

Page 19: ...owl it may be nec essary to use a needle valve extension for the high speed needle valve Make this out of suf ficient 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 Trim and cut Machine screw M3x10mm Needle valve 3 Install the muffler and muffler extension onto the engine and make the cutout in ...

Page 20: ...he mount as shown 1 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 2 Connect the Z bend in the 450mm throttle pushrod to the outer hole of the carburetor arm 4 Reinstall the servo horn by sliding the connector over the pushrod wire Center the throttle stick and trim and install the servo horn p...

Page 21: ...ecure the wire in place by tightening the set screw in the side of the needle valve Trim and cut 5 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 Trim and cut 1 Slide the fiberglass cowl over the engine and line u...

Page 22: ...TWIN COMANCHE Instruction Manual 22 ELECTRIC POWER CONVERSION 1 Locate the items neccessary to install the electric power conversion included with your model Needle valve Machine screw M3x10mm Epoxy ...

Page 23: ...see picture shown 4mm 2 Attach the 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 Epoxy Model size 35 45 size models Motor 35mm 830 rev per volt Propeller 10x7 ESC 50A Lipo Batteries 4 cell 3200mA Epoxy 5 2mm ...

Page 24: ...ropriate leads from the speed control to the motor Make sure the leads will not interfere with the operation of the motor Epoxy 150mm INSTALLING THE SPINNER Install the spinner backplate propeller and spinner cone 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 Ba...

Page 25: ...25 www seagullmodels com INSTALLING TEXTURED LANDING GEAR Epoxy Cut ENGINE 72 82 4 STROKE 2 6 1 3 8 7 4 5 1 2 3 9 Pen 2mm 4 M3x15mm 1 ...

Page 26: ...TWIN COMANCHE Instruction Manual 26 6 8 7 5 5 Epoxy Epoxy Epoxy Epoxy 7 9 Screw ...

Page 27: ...rom the bottom of the wing for retracts landing gear installation 3 Glue hardwood mounting blocks into the wing as show with epoxy 4 Position the landing gear onto the landing gear rails Mark the location of the holes for mouting the landing gear 220mm 200mm INSTALLING RETRACTABLE LANDING GEAR OPTIONAL 1 Locate the items necessary to install the retracts landing gear and retract linkage instal lat...

Page 28: ...hin epoxy to the two gear door brack ets to secure the gear door to the retract strut as shown 6 Epoxy 7 5 8 1 3 3 8 C A glue M3x15mm 4 M2 clevis M2 lock nut 6 Install the wheel wells after adjusting the retracts Roughen the bottom side of the well and glue the wells using C A glue as shown ...

Page 29: ...29 www seagullmodels com 8 Repeat the procedure for the other wing C A glue Servo for retractable only Metal connector Servo arm 25mm INSTALLING NOSE RETRACTABLE LANDING GEAR OPTIONAL Excluded ...

Page 30: ...TWIN COMANCHE Instruction Manual 30 2mm 2mm C A glue ...

Page 31: ...31 www seagullmodels com INSTALLING NOSE TEXTURED LANDING GEAR Adjustable connector M2 clevis ...

Page 32: ...the stabilizer with the centre of the fu selage When that is aligned hold the stabi lizer in that position using T pins or masking tape Align the horizontal stabilizer with the wing When viewed from the rear the hori zontal stabilizer should be level with the wing If it is not level use sandpaper and sand down the high side of the stabilizer mounting plat form until the proper alignment is achieve...

Page 33: ...ea and to the stabilizer mounting platform sides in the fuselage Putting the stabilizer in place and realign Double check all of your measure ments once more before the epoxy cures Hold the stabilizer in place with T pins or mask ing tape and remove any excess epoxy using a paper towel and rubbing alcohol 10 After the epoxy has fully cured re move the masking tape or T pins used to hold the stabil...

Page 34: ...nd to bottom of the vertical sta bilizer mounting area Apply epoxy to the bot tom and top edges of the filler block and to the lower hinge also Set the stabilizer in place and realign Double check all of your measure ments 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 ep oxy to...

Page 35: ... rudder pushrods assembly as pictures below 3 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 con trol rods 1 Install the elevator control horn using the same method as with the aileron control horns 2 Position the elevator control horn on the both side of elevator 678mm Cut C A glue C A glue ...

Page 36: ...TWIN COMANCHE Instruction Manual 36 RUDDER PUSHROD HORN INSTALLATION 8mm M2 lock nut M2 clevis Control horn M2 lock nut Metal clevis Rudder pushrod Pen 8mm Cut 8mm Elevator pushrod 8mm Pen ...

Page 37: ...rp 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 1 Plug the five servo leads and the switch lead into the receiver Plug the battery pack lead into the switch also 3 Route the antenna in the antenna tube inside the fuselage and ...

Page 38: ...TWIN COMANCHE Instruction Manual 38 Receiver INSTALL THE PLASTIC PARTS ATTACHMENT WING FUSELAGE Wing tube Attach the aluminium tube into fuselage Epoxy Wing bolt Insert two wing panels as pictures below ...

Page 39: ...39 www seagullmodels com Close Position servo arm 12mm Open Position servo arm ...

Page 40: ...g 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...

Page 41: ...eron 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 FLIGHT PREPARATION A Check the operation and direction of the ele...

Page 42: ... Purchaser must be approved in writing by Horizon before shipment Damage Limits HORIZON SHALL NOT BE LIABLE FOR SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES LOSS OF PROFITS OR PRODUCTION OR COMMERCIAL LOSS IN ANY WAY CONNECTED WITH THE PRODUCT WHETHER SUCH CLAIM IS BASED IN CONTRACT WARRANTY NEGLIGENCE OR STRICT LIABILITY Further in no event shall the liability of Horizon exceed the individual price ...

Page 43: ...you do not have internet access please include a letter with your complete name street address email address and phone number where you can be reached during business days your RMA number a list of the included items method of payment for any non warranty expenses and a brief summary of the problem Your original sales receipt must also be included for warranty consideration Be sure your name addre...

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