Seagull Models Piper Comanche MS:142, Assembly Manual

Page 1: ... MANUAL Specifications Wingspan 72in 183cm Wingarea 768 8sq in 49 6sqdm Weight 8 8 9 7lbs 4 0 4 4kg Length 46 3in 117 7cm Engine 0 61 0 75cu in 2 stroke 0 91 1 00cu in 4 stroke Radio 6channelswith7 servos Electricconversion optional Retracts landing gear excluded optional ...

Page 2: ...anual is designed to help you build a great flying aeroplane Please read this manual thoroughly before starting assembly of your PIPER COMANCHE 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 RESPONSIBI...

Page 3: ...TEN TS Hinge T pin HINGING THE FLAP The 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 Note 1 Carefully remove the flap from one of the wing panels Note the position of the hinges 2 Remove ...

Page 4: ...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 flap hinges are glued in place a 1 64 gap or less will be maintained throughout the lengh of the flap to the wing panel hinge line Note 7 Repeat this process with the other wing panel securely hinging the flap in pla...

Page 5: ... 3 Slide the aileron on the wing panel 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 Hinge Hinge T pin C A glue 6 Using C A remover debonder and a paper towel remove any excess C A glue that may have accumulated on th...

Page 6: ...re 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 hinges in place using the same techniques used to hinge the ailerons Hinge WING TIP ASSEMBLY Remove covering Covering Wing tip 1 Attach the plastic wing tip...

Page 7: ...he 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 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 3mm Install the flap control horn using the same method...

Page 8: ...vator control horn using the same method as same as the aileron control horns INSTALL ELEVATOR CONTROL HORN ALUMINUM WASHER ALUMINUM WASHER CONTROLHORN M3 SCREW 18mm Epoxy Epoxy M3 LOCK NUT 3mm Aluminum Washer CONTROLHORN M3 SCREW M3 LOCK NUT Epoxy Aluminum Washer Elevator Horizontal Stabilizer 3mm 1 sets 3x35mm ...

Page 9: ...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 4x30mm Rudder Aluminum Washer CONTROLHORN M3 SCREW M3 LOCK NUT Epoxy Aluminum Washer Fuselage Fuselage 16mm Epoxy Rudder INSTALL RUDDER CONTROL HORN 1 sets 3x35mm Elevator control horn 3mm Repeat steps to install the rudder control horn as same as steps done...

Page 10: ...d locker glue 1 Using a modeling knife carefully cut off the rear portion of one of the 3 nylon tubes leaving 1 2 protruding from the rear of the stopper This will be the fuel pick up tube INSTALLING THE STOPPER ASSEMBLY 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 Vent tube Fuel pi...

Page 11: ...LLATION Epoxy 7 Slide the fuel tank into the fuselage Guide the lines from the tank through the hole in the firewall Fuel tank 8 Use plywood template to hold in place the fuel tank with C A glue to secure the fuel tank inside the fuselage Balsa wood include INSTALLING THE FUSELAGE SERVOS Throttle servo Elevator servo Rudder servo 1 Install the rubber grommets and brass collets onto the throttle se...

Page 12: ...fire wall has the location for the throttle pusshrod tube pre drill 4 5mm 4mm Adjustable Servo connector Servo arm Loctite secure 1 PCS Throttle servo arm Elevator servo arm Rudder servo arm 3 32 Hole INSTALLING THE SWITCH Install the switch into the precut hole in the side in the fuselage Switch Trim and cut 140mm MOUNTING THE ENGINE 1 Position the engine with the drive washer 150mm forward of th...

Page 13: ...ke sure to use threadlock on the screw so it does not vibrate loose Machine screw M4x30mm Pushrod wire 7 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 5 Slide the pushrod tube in the firewall and guide it through the fuel tank mount Use medium C A to glue the tube to the firewall and t...

Page 14: ...masking tape Because of the size of the cowl 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 Trim and cut COWLING Trim and cut 1 Slide the fiberglass cowl over the engine...

Page 15: ... POWER CONVERSION 1 Locate the items neccessary to install the electric power conversion included with your model 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 Model size 61 75 size models Motor 50mm 310 rev per volt Propeller 13...

Page 16: ...6 Balsa stick Electric motor M3x15mm Epoxy 140mm Epoxy 4mm 4mm Blind nut 3 Attach the motor to the front of the electric motor box using four 3mm blind nut four M3x15mm hex head bolts to secure the motor Please see picture shown M4x20mm ...

Page 17: ...oes use a sharp modeling knife and carefully trim away the spinner cone where the propeller comes in contact with it Battery 4 Locate the plywood battery tray to the fuselage Tighten the screws using machine screws M3x15mm to secure the tray in position INSTALLING THE AILERON FLAP SERVOS Servos Small weight Thread 1 Using a small weight Weighted fuel pick up works well and string feed the string t...

Page 18: ... 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 accelerator 6 Secure the servo to the aileron hatch using Phillips screwdriver and the screws provided with the servo 5 Use dental floss to secure the ...

Page 19: ...19 www seagullmodels com 9 Set the aileron hatch in place and use a Phillips screw driver to install it with four wood screws AILERON PUSHROD HORN INSTALLATION ...

Page 20: ...p Wing Wing Repeat the procedure for the other aileron servo Aileron 1 2 3 4 5 6 7 8 INSTALLING RETRACTABLE LANDING GEAR INSTALLING THE FLAP SERVO M2 lock nut Wing Flap Repeat the procedure for the aileron servo Locate the items necessary to attach the nose landing gear that are included with your model ...

Page 21: ...21 www seagullmodels com M3x25mm 3 4 Screw 2mm 2mm 4 1 1 6 7 Epoxy Epoxy 6 ...

Page 22: ...ed firmly against the front of the slot Epoxy Epoxy 6 7 5 2 Epoxy Repeat the procedure for the other wing INSTALLING THE HORIZONTALSTABILIZER 1 Using a ruler and a pen locate the centerline of the horizontal stabilizer at the trail ing 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 ed...

Page 23: ...n 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 mea surements once more before the epoxy cures Hold the stabilizer in place with T pins or mask ing ta...

Page 24: ...aligned correctly mix up a generous amount of Flash 30 Minute Epoxy Apply a thin layer to the mounting slot and 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...

Page 25: ...rod A C A glue A Elevator pushrod Control horn M2 lock nut Metal clevis Elevator pushrod Control horn M2 lock nut Metal clevis Rudder pushrod M2 lock nut M2 clevis 580mm 620mm M2 lock nut M2 clevis 520mm 560mm Elevator pushrod A C A glue ...

Page 26: ... Seagull Pilot included fitting well to the cockpit or you can order others scale pilot figures made by Seagull factory They are available at Seagull 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 1 Epoxy 2 3 C A glue Epoxy 20mm 4 Position the canopy onto the fuselage Trace around the canopy and onto the fuselage u...

Page 27: ...o protect them from vibration Apply a bead of canopy glue around the inside edge of the canopy Position the canopy onto the hatch Use tape to hold the canopy secure until the glue fully cures 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 t...

Page 28: ...he balance up to 10mm 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 BALANCING ...

Page 29: ...eiver 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 110mm CONTROL THROWS Ailerons 12mm 15mm up 12mm 15mm down Elevator 12mm 15mm up 12mm 15mm down Rudder 20mm 30mm left 20mm 30mm right ...

Page 30: ...l If it does not flip the servo re versing 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 re versing switch on your transmitter to change the direction C Check the rudder Looking from behi...