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Seagull Models P47 SNAFU, Instruction Manual

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P47 SNAFU

Instruction Manual.

2

 

Thank you for choosing the 

P47 SNAFU

 ARTF by 

SEAGULL MODELS COMPANY LTD

,. 

The 

P47 SNAFU

 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 onventionally built using 

balsa, 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 

P47 SNAFU

 is simply a joy.

This instruction manual is designed to help you build a great flying earoplane. Please read 

this manual throughly before starting assembly of your 

P47 SNAFU

. User the parts listing 

below to indentify all parts.

 

Please be awere that this aeroplane is not a toy and if assembley or used incorrectly it is 

capable of causing injury to people or property. WHEN YOU FLY THIS AEROPLANE YOU 

ASSUME ALL RISK & REPONSIBILITY.

If you are inexperianced 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.

INTRODUCTION.

WARNING.

KIT CONTENTS

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Summary of Contents for P47 SNAFU

Page 1: ... lbs 4 2 4 5 kg Length 51 8 in 131 5cm Engine 0 61 0 91 cu in 2 stroke 0 91 1 00 cu in 4 stroke 15cc gasoline engine Radio 6 channels with 9 servos Electric conversion Optional ASSEMBLY MANUAL MS 207 P47G THUNDERBOLT www seagullmodels com Graphics and specifications may change without notice READY TO FLY SNAFU 60 ARF ...

Page 2: ...ned to help you build a great flying earoplane Please read this manual throughly before starting assembly of your P47 SNAFU User the parts listing below to indentify all parts Please be awere that this aeroplane is not a toy and if assembley or used incorrectly it is capable of causing injury to people or property WHEN YOU FLY THIS AEROPLANE YOU ASSUME ALL RISK REPONSIBILITY If you are inexperianc...

Page 3: ...ol surfaces including the ai lerons elevators and rudder are prehinged with hinges installed but the hinges are not glued in place It is imperative that you prop erly 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 an...

Page 4: ...his 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 ap plying medium pressure trying to separate the aileron from the wing panel Use caution not to crush the wing structure Work the aileron up and down sev...

Page 5: ...e of the wing panel and aileron Epoxy 5 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 6 Using C A remover debonder and a pa per towel remove any excess C A glue that may have accumulated on the wing or in the aileron hinge area 7 Repeat this...

Page 6: ... hinge the ai lerons INSTALL THE AILERONS CONTROL HORN Fiberglass control horn Epoxy Epoxy Aileron control horn INSTALL FLAP CONTROL HORN Install the flap control horn using the same method as same as the aileron con trol horns Fiberglass control horn Epoxy INSTALL ELEVATOR CONTROL HORN Fiberglass control horn Epoxy ...

Page 7: ...e size of the precut opening in the mount The notch in the sides of the mount allow the servo lead to pass through 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 pro vided with your radio system Rudder servo Elevator servo Throttle servo THROTTLE SERVO ARM INSTALLATION Install adjustable se...

Page 8: ...rim and cut Switch INSTALLING THE STOPPER ASSEMBLY 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 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 A B ...

Page 9: ...mbly tighten the 3 x 20mm ma chine screw until the rubber stopper expands and seals the tank opening Do not over tighten the assembly as this could cause the tank to split 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 w...

Page 10: ...x30mm 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 Thread locker glue MOUNTING THE ENGINE 2 stroke 1 Position the engine with the drive washer 145mm forward of the firewall as shown 145mm 2 Use a pin drill and 4mm drill bit to drill a small indentation in the m...

Page 11: ...osition the engine between the mounts Use four M4x30mm machine screws to secure the engine to the mount as shown Machine screw M4x30mm Pushrod wire Cut 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 Movethethrottlesticktotheclosed po sition and move the carburetor to cl...

Page 12: ...P47 SNAFU Instruction Manual 12 12 Drill hole 3mm Drill hole Knife Cut C A glue ...

Page 13: ...by tightening the set screw in the side of the needle valve 2 While keeping the back edge of the cowl flush with the marks align the front of the cowl with the crankshaft of the engine The front of the cowl should be positioned so the crankshaft is in nearly the middle of the cowl opening Hold the cowl firmly in place using pieces of masking tape 3 Install the muffler and muffler extension onto th...

Page 14: ...our holes in the engine mount rails 4 On the fire 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 firewall and the fuel tank mount 6 Connect the Z bend in the 450mm throttle pushrod to the outer hole of the carburetor arm 7 Slide the throttle pushrod wire into the...

Page 15: ...ide of the needle valve 2 While keeping the back edge of the cowl flush with the marks align the front of the cowl with the crankshaft of the engine The front of the cowl should be positioned so the crankshaft is in nearly the middle of the cowl opening Hold the cowl firmly in place using pieces of masking tape 3 Install the muffler and muffler extension onto the engine and make the cutout in the ...

Page 16: ...e 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 6 Connect the Z bend in the 450mm throttle pushrod to the outer hole of the carburetor arm 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 1 Slide the fibe...

Page 17: ...ire in place by tightening the set screw in the side of the needle valve Needle valve 3x10mm 3 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 filler valve Secure the cowl to fuse lage using the M3x10mm screws ELECTRIC POWER CONVERSION 1 Locate the items neccessary...

Page 18: ...ewall suitable with the cross lines drawn on the electric motor box and fire wall Using M4x20mm to secure the mo tor 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 M3x15mm hex head bolts to se cure the motor Please see picture shown M4x20mm 4 mm Blind nut 5 Attach the motor to the front of the electric motor box...

Page 19: ... appropriate leads from the speed control to the mo tor Make sure the leads will not interfere with the operation of the motor Speed control Tie wraps Battery INSTALLING THE PROPELLER 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 propel ler comes in contact with it ...

Page 20: ...ring through the wing as indicated 2 Place the servo between the mount ing 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 accelerator C A glue 5 Use dental floss to secure the connec...

Page 21: ...gh to the wing root 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 9 Set the aileron hatch in place and use a Phillips screw driver to install it with four wood screws 2x10mm INSTALLING THE FLAP SERVO Repeat the procedure for the aileron servo INSTALLING THE LIGHT COVER Please see ...

Page 22: ...P47 SNAFU Instruction Manual 22 Cut C A glue AILERON PUSHROD HORN INSTALLATION Fuel tubing Hex nut M2 clevis Wing INSTALLING THE FLAP PUSHROD Repeat the procedure for the aileron pushrod 60mm 50mm ...

Page 23: ...23 Hex nut Fuel tubing M2 clevis Flap INSTALLING RETRACTABLE LANDING GEAR 1 Locate the items necessary to install the retractable landing gear as shown 2 Install retractable landing gear at the Wing Pen 2mm 2mm M3x25mm C A glue ...

Page 24: ...P47 SNAFU Instruction Manual 24 24 Epoxy Collar Collar Epoxy RETRACTABLE LANDING GEAR SERVO PUSHROD INSTALLATION 1 Locate items necessary to install land ing gear pushrod ...

Page 25: ...WWW SEAGULLMODELS COM 25 M3x10mm M3 lock nut M3 clevis 30mm ...

Page 26: ...P47 SNAFU Instruction Manual 26 Cut Cut Insert bomb onto the wings Epoxy Epoxy ...

Page 27: ...trailing edge of the stabilizer 2 Using a modeling knife carefully re move the covering at mounting slot of horizontal stabilizer both side of fuse lage 3 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 Draw center line 4 With the stabilizer held firmly in place use a pen and draw lines onto the sta...

Page 28: ... both the top and the bottom of the platform Pen Trim and cut Epoxy 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 stabi lizer 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 befor...

Page 29: ...is aligned correctly mix up a generous amount of Flash 30 Minute Epoxy Ap ply a thin layer to the mounting slot and to bottom of the vertical stabilizer 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 measurements once more before the epoxy cures Hold the stabilizer in place with...

Page 30: ...shrod Elevator control horn 50mm 2 Install the elevator control horn using the same method as with the aileron con trol horns 3 Position the elevator control horn on the both side of elevator 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 control rods 4 Elevator and rudder pushrods assem bly as pictures below M2 loc...

Page 31: ...WWW SEAGULLMODELS COM 31 31 MOUNTING THE TAIL WHEEL 1 Locate the items necessary to install tail gear Tail gear Screw Hex nut Fuel tubing M2 clevis ...

Page 32: ...P47 SNAFU Instruction Manual 32 Hex nut M2 clevis Fuel tubing C A glue Cut Insert fuel tank onto the wings 3x13mm 3x15mm ...

Page 33: ... 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 show Locate the oval shaped on the canopy floor and remove the cover ing Use epoxy to glue this into the base of the pilot figure and glue the cockpit panel in place with C A glue please see pictures as shown Epoxy 10mm 4 Position the ca...

Page 34: ...e the antenna in the antenna tube inside the fuselage and secure it to the bottom of fuselage using a plastic tape 2 The last detail is to install the antenna onto the fuselage Use a hobby knife to cut a slot in the top of the fuselage for the antenna Remove covering to see hole 3 Tighten the antenna to the fuselage The antenna is removeable so you can in stall it at the flying field to prevent da...

Page 35: ... wing panels as pictures below Wing tube Wing bolt Wing bolt 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 GRAV ITY IS LOCATED 100 MM BACK FROM THE LEADING EDGE OF THE WING AT THE WING ROOT Epoxy Epoxy ...

Page 36: ...uire 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 light er 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 mod el at the marked balance point with the stabilizer level Lift ...

Page 37: ...WWW SEAGULLMODELS COM 37 37 ...

Page 38: ...t 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 1 Completely charge your trans mitter and receiver batteries before your first day of flying 2 Check every bolt and every glue joint in the P47 SNAFU to en sure that everything is tight and well 3 Double check the balance of the airpla...

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