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6

Section 1: Hinging the Ailerons

Note: 

The hinges supplied with your Alpha™ Trainer ARF 

are constructed of a special material that allows the thin 
CA to “wick” or penetrate and distribute throughout the 
hinge, securely bonding them to the wood structure. It is
important that you properly secure the hinges in place per
these instructions using high-quality thin CA glue.

Step 5 

Once the epoxy has cured, check the aileron for freedom of 
movement. Fully defect the aileron down and using thin CA 
saturate each hinge. Turn the wing panel over and repeat the
process saturating the hinges again from the other side. Use 
CA remover/debonder and a paper towel to remove any excess
CA along the hinge line.

Step 6 

Hinge the opposite wing panel and aileron by repeating Steps 2–5.

Step 7 

When the CA has completely dried, test the ailerons for security.
Firmly grasp the wing and aileron and using medium pressure try
to separate the aileron from the wing. Use caution not to crush the
wing structure.

Continued

Summary of Contents for Alpha Trainer

Page 1: ...Specifications Wingspan 63 in 1600 mm Length 52 5 in 1334 mm Wing Area 710 sq in 45 8 sq dm Weight 5 6 lb 2 27 2 72 kg ASSEMBLY MANUAL AlmostReady To Fly ...

Page 2: ...ng modeler in mind It is an ideal trainer for the novice pilot with gentle and forgiving flight characteristics Once you have some flight time under your belt you can put your Alpha through some basic aerobatics rolls and loops are smooth and graceful The Alpha Trainer ARF kit also includes large wheels to make ground handling easy whether your flying field has a paved runway or grass And the Alph...

Page 3: ...nt 8 Decal Set HAN2455 not pictured Additional Required Equipment 4 channel radio minimum 4 standard servos JRP5527 Engine 40 48 2 cycle 50 72 4 cycle Standard 650mAh receiver battery Recommended Radio Systems J Line Quattro JR XF421 JR XF631 JR XP652 JR XP662 JR X 378 JR XP8103 Recommended Engines 2 cycle Evolution Trainer Power System MDS 40 FS Pro MDS 48 FS Pro Webra 50GT 4 cycle Saito FA 50 Sa...

Page 4: ...xing sticks Rubbing alcohol Paper towels Wax paper Masking tape Felt tipped pen pencil RC foam Required Field Equipment The following are included in the Hangar 9 Start Up Field Accessory pack HANSTART Sturdy cardboard construction tote box Manual fuel pump Two Hangar 9 glow plugs 4 way wrench Rechargeable glow driver with charger Chicken stick Other Items Needed Not included in Start Up Field Acc...

Page 5: ... Locate the CA hinges required for the aileron Place a T pin in the center of each hinge and slide them into the precut hinge slots of the wings trailing edge as shown Step 3 Trial fit the aileron to the wing make sure there is no more than 1 32 gap along the hinge line Once satisfied with the fit remove the aileron Step 4 Mix approximately 1 4 ounce of 6 minute epoxy Using a tooth pick apply the ...

Page 6: ...red check the aileron for freedom of movement Fully defect the aileron down and using thin CA saturate each hinge Turn the wing panel over and repeat the process saturating the hinges again from the other side Use CA remover debonder and a paper towel to remove any excess CA along the hinge line Step 6 Hinge the opposite wing panel and aileron by repeating Steps 2 5 Step 7 When the CA has complete...

Page 7: ...wing halves together while you check for the correct dihedral angle Place the wing on a large flat surface with one wing panel resting flat on the surface the tip of the opposite wing panel should be 5 from the flat surface When you are satisfied with the dihedral separate the wings and remove the joiner Note Read through the remaining steps of this section before proceeding to glue the wing panel...

Page 8: ...ly press both halves together allowing the epoxy to run out Using alcohol and paper towels wipe off the excess epoxy Check to make sure there are no visible gaps between the two wing panels Step 8 Use masking tape to securely hold both wing halves together Place the wing assembly back onto the flat work surface covered with wax paper and check the dihedral again as in Step 3 Step 9 Double check th...

Page 9: ...the tray to mount to the bottom of the wing Allow the CA to dry Step 2 Install the mounting hardware rubber grommets and brass eyelets supplied with your radio system on to the aileron servo Temporarily install the aileron servo on the servo tray as shown and test fit the entire assembly to the wing Make sure the servo output shaft is oriented towards the trailing edge of the wing Note It may be n...

Page 10: ... sharp hobby knife cut away the covering along the line you just traced Caution Only cut deep enough to cut the covering Do not cut into the wood sheeting underneath Step 4 Mix a small amount of 6 minute epoxy approximately 1 4 ounce and coat both the bare wood of the wing and the servo tray rails Position the servo tray on the wing and secure it with masking tape and allow the epoxy to fully cure...

Page 11: ...four locations marked in the previous step for the mounting screws Drill all the way through the servo tray and wing sheeting To strengthen the screw holes place a drop of thin CA into each hole and allow the CA to dry Step 3 Install the aileron servo and secure it to the wing using the mounting screws provided with your radio system Use caution when installing the screws as not to contact the ser...

Page 12: ... neutral position even with the wings trailing edge With the aileron servo arm at neutral parallel to the trailing edge of the wing lay the aileron control wires across the outer most hole and mark the wire with a felt tipped pen Step 8 Remove the control wires you just marked and make a 90 degree L bend at the mark Cut off the excess wire 5 16 past the bend Step 9 Install the control wires back o...

Page 13: ...n on the underside of the fuselage and insert the wires into the predrilled holes as shown Note that the wires lay side by side in the precut groove in the landing gear block Step 3 Locate the mounting screw holes drilled on either side of the landing gear wires Secure the main landing gear wires using the straps and the 1 2 wood screws provided with your model Step 4 Locate the two main wheels 23...

Page 14: ...own Step 6 Slide the nose gear wire through the steering block and steering arm as shown and tighten the setscrew on the steering arm to secure the nose gear You want the setscrew to tighten against the flat ground into the nose gear wire Step 7 Install the 21 2 nose wheel using two wheel collars as you did for the main wheels in Step 6 centering the wheel on the axle ...

Page 15: ...of the stabilizer at the trailing edge as shown Using a triangle extend the center mark forward to the leading edge of the stabilizer Make sure the line is 90 degrees to the trailing edge of the stabilizer Step 2 Mark the center of the stabilizer saddle at the trailing edge of the saddle as shown Step 3 Lay the horizontal stabilizer on the saddle and align the rear mark of the stabilizer with the ...

Page 16: ...eposition the stabilizer onto the stabilizer saddle Use the lines drawn in Step 4 to reposition the stab correctly Using a 90 degree square make sure the stabilizer is square to the fuselage as shown Make any adjustment needed by sanding the stabilizer saddle until the proper alignment is achieved Remove the horizontal stabilizer from the fuselage Step 7 Mix at least 1 2 ounce of 30 minute epoxy a...

Page 17: ...lage cutting 1 16 inside the lines you drew in the previous step Also cut away the covering on top of the horizontal stabilizer 1 16 inside the lines Use only enough pressure to cut the covering not the wood underneath Re install the fin into the fuselage to check the fit Step 12 Mix at least 1 2 ounce of 30 minute epoxy and coat the vertical fin where it meets the fuselage and stabilizer Also coa...

Page 18: ...ontal stabilizer until the T pin is snug against the trailing edge as shown Step 2 Install the elevator onto the hinges Remove the T pins and push the elevator up against the stabilizer until there is only a slight gap 1 32 or less at the hinge line Step 3 Using high quality thin CA glue deflect the elevator down and completely saturate each hinge Step 4 Turn the fuselage over and repeat the hinge...

Page 19: ...flect the rudder in one direction and using high quality thin CA glue completely saturate each hinge Step 7 Deflect the rudder in the opposite direction and again saturate each hinge with thin CA Using CA remover debonder wipe off any excess CA on the rudder hinge line Allow the CA to dry Step 8 Once the CA has completely dried check the rudder for security by trying to pull the rudder from the fu...

Page 20: ...elevator Mark the elevator as shown with a felt tipped pen or a pencil This mark will be the center of the elevator control horn location Step 2 Place the center of the control horn on the elevator at the mark made in the previous step Align the holes in the control with the hinge line as noted above Mark the mounting holes of the control horn with a felt tipped pen or pencil Step 3 Drill 1 16 hol...

Page 21: ...trol horn Step 6 Center the control horn over the mark you ve just made and paral lel to the horizontal stabilizer as shown Make sure the horn is positioned over the hinge line just like you did for the elevator Mark the mounting screw hole locations on the rudder Step 7 Using a 1 16 drill bit drill the mounting screw holes on the marks made in the previous step and install the rudder control horn...

Page 22: ...o that an equal amount of tube extends from each side of the stopper This tube will be the fuel tank pickup that provides fuel to the engine Step 3 Slide the smaller of the two caps over the tube on the smaller end of the rubber stopper The small end will be inserted into the fuel tank The larger cap is placed on the other side of the rubber stopper that makes the cap Step 4 Locate the other metal...

Page 23: ...k to freely drop to the top of the tank Step 7 Tighten the 3mm screw carefully do not over tighten This allows the rubber stopper to form a seal by being slightly compressed thus sealing the fuel tank opening Step 8 Locate the two pieces of fuel tubing red and green Install the red tubing onto the fuel pickup tube the short strait tube and install the green tubing onto the tank vent tube the bent ...

Page 24: ...lock on the screws to prevent them from coming loose during flight Step 3 Place the engine centered between the beams of the engine mount and using the metal clamps 8 32 x 1 screws locknuts and 8 washers secure the engine in place Be sure the nuts are captured in the bottom of the engine mount Step 4 Install the muffler onto your engine using the hardware supplied with your engine Step 5 Connect t...

Page 25: ...nting screws provided with your radio system Step 3 Mount the battery switch to the left side of the fuselage as shown Step 4 Using RC foam cut three layers of foam the size of the receiver compartment approximately 41 2 by 31 4 Trace the outline of your receiver and receiver battery pack onto one layer and cut them out using a sharp hobby knife Step 5 Place one layer of foam in the fuselage and t...

Page 26: ... the aileron servo lead free Locate the plywood radio compartment cover and slide it into the fuselage until it contacts the back of the fuel tank Step 7 Drill a 1 16 pilot hole through the cover and into the post in the fuselage Secure the cover with the screw provided in the Alpha ARF kit Step 7 Photo Step 7 Photo ...

Page 27: ...ed pen pencil Step 1 Locate the three control wires threaded on one end and three nylon clevises with clevis keepers Thread a clevis onto the threaded end of each control wire with the keeper in place as shown Thread each clevis on a minimum of 12 turns Step 2 Looking at the rear of the fuselage locate the pre installed elevator control wire tube Slide the elevator control wire 283 4 through the t...

Page 28: ... of your engine With the servo centered half throttle and the carburetor half open mark the throttle wire where it crosses the outer hole of the servo arm Step 6 Remove the throttle control wire and make a 90 degree L bend as shown Cut off the excess wire 5 16 from the bend Remove the clevis and slide the control wire through the tube from inside the fuselage and connect the wire to the servo arm ...

Page 29: ... setscrew on the easy connector Step 10 Locate the rudder control wire 251 2 and slide it through the pre installed rudder tube in the left rear top of the fuselage Connect the clevis to the rudder control horn With the servo centered and the rudder at neutral mark the rudder wire where it crosses the outer hole of the servo arm Step 11 Remove the control wire and make a 90 degree L bend as shown ...

Page 30: ...ocate the spinner included in your Alpha Trainer and remove the three self tapping screws and remove the back plate Step 3 With the flywheel in place install the spinner back plate onto the engine as shown Note The flywheel is keyed in place onto the engines crank shaft and should be tight against the front engine bearing Step 4 Slide the propeller onto the engine with the molded E facing forward ...

Page 31: ...g to run your evolution engine Be sure to check the security of the propeller before each flying session Note The propeller must be positioned to allow the spinner cone to fit into the slots in the back plate Test fit the spinner cone before attempting to install the self tapping screws of the spinner Step 7 Using a Phillips head screwdriver secure the spinner cone in place with the three self tap...

Page 32: ...sh to add a second rate set ting We also recommend that you have an experienced modeler help you with control throws and CG set up of your Alpha ARF Your local hobby shop can put you in contact with the RC clubs in your area Recommended Control Throws Aileron 5 16 up 1 4 down Elevator 3 8 up 3 8 down Rudder 3 4 right and left Recommended CG Location An important part of preparing the aircraft for ...

Page 33: ...ainer For first time pilots the thought of flying their Alpha Trainer through loops rolls and perfect three point landings can be thrilling Learning to fly however takes time patience and most importantly a good instructor If you re a first time pilot don t try to fly your model without an instructor Seek an experienced instructor Your local hobby shop can put you in touch with an instructor in yo...

Page 34: ...te This does not apply to models while being flown indoors 8 I will not operate models with metal bladed propellers or with gaseous boosts in which gases other than air enter their internal combustion engine s nor will I operate models with extremely hazardous fuels such as those containing tetranitromethane or hydrazine 9 I will not operate models with pyrotechnics any device that explodes burns ...

Page 35: ...e course is defined to mean any area beyond the pilot staging area where actual flying takes place B I will not fly my model aircraft in any organized racing event which does not comply with paragraph A above or which allows models over 20 pounds unless that competition event is AMA sanctioned C Distance from the pylon to the nearest spectator line will be in accordance with the current Competitio...

Page 36: ... Copyright 2002 Horizon Hobby Inc 1 800 535 5551 www horizonhobby com WE GET PEOPLE FLYING TM 5161 ...

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