SIG Edgetra ARF Assembly Manual Download Page 5

f)

   Fit the servo into the servo mount in the wing panel,  (note  that 
   the servo is positioned so that the servo arm  is  at  the  forward 
   end toward the  wing  leading  edge).  Take  up  any  slack  in  the 
   servo wire as you insert the servo in the mount.  Use  a  pin  vise 
   and a small drill bit to drill small pilot holes in  the  servo  mount 
   for the servo mounting screws.   Use  the  screws  supplied  with 
   your radio  system  to  mount  the  servo  in  place  on  the  servo 
   mount.   Repeat  this  procedure  to  mount   the   servo   in   the 
   opposite wing panel. 

    

 
 
 

 2)  Hinge the ailerons 

 
          Note that the CA Hinges are installed, but not  yet  glued,  in  the 
          ailerons and wing panels.  The installation process for the hinges 
          is the same for all of the control surfaces on this model. 
 

a)

 If you  removed  the  ailerons  and  hinges  from  the  wing  panels 

         when you tightened  the  covering  material,  reinstall  them  now. 
         First insert the four CA Hinges into the slots in the aileron.  Put two 
         pins in the center of each hinge, up against the leading edge of the 
         aileron, to keep the hinges centered during the next step. 

 

 

b)

Now carefully insert the exposed portion of the four hinges into      
the trailing edge of the wing.  You will find it easiest to slide the 
hinges into the slots at angle, one hinge at a time, instead of trying 
to push straight into all the hinges at once.  
 

c)

Adjust the aileron so that the tip of the aileron is 3/32” in from  
the wing tip. The ailerons should be tight against the pins in the 
hinges to minimize the gap between the wing and the aileron. The 
aileron is now in the proper position for permanently gluing them 
in place with thin CA glue.  

 

   

d)

Flex the aileron down and hold it in this position.  Remove the pins 
from one hinge and then carefully apply 3-4 drops of thin CA glue 
directly onto the hinge in the gap.  You will notice that the glue is 

quickly wicked into the slot as it penetrates both the wood and 
the hinge.  We suggest using a fine tipped applicator on the glue 
bottle to better control the flow of glue. 

 

 

  

e)

Turn the wing over and glue the other side of the hinge.  Continue 
this process until you have glued both sides of all the hinges! Keep 
a rag handy to wipe off any excess thin CA glue.  (If you get some 
glue smears on the plastic covering, don't worry about them right 
now.  Once all the hinging is done, you can clean the smears off 
the covering with CA De-bonder. 
 
 

f)

Let the glue dry 10-15 minutes before flexing the hinges.  At first 
you might notice a little stiffness in the joint.  This will go away 
after the hinges have been flexed back and forth a few times. 

 
INSTALL AILERON CONTROL HORNS & PUSHRODS 
          From the kit contents locate: 
          (2) Painted Fiberglass Control Horns 
          (2) 3mm x 70mm Steel Pushrods 
          (4) M3 nuts for Pushrods 
          (4) Nylon Ball Links and Aluminum Balls 
          (4) M3 x 16 mm Machine Screws  
          (4) M3 locking Nuts 
 

 

3)  Install the aileron control horns 

a)

 Remove the paint from the lower portion of the Control horn that 

          will be inserted into the pre-cut slot in the aileron, and clean that 

          portion with a cloth and some isopropyl  alcohol.  Mix  up  a  small 
          batch of 5-minute epoxy, and apply to the pre-cut slot and control 
          horn. Before the epoxy sets, insert the control horn into the pre- 
          cut slot and clean up any excess epoxy using rubbing alcohol and 
          a paper towel. 

    

 

 

 

Summary of Contents for Edgetra ARF

Page 1: ......

Page 2: ... on prop size NOTE The Castle Creations ESCs that we used as well as many of the other ESC s on the market have a BEC Battery Eliminator Circuit built in BEC allows you to use the same battery pack to Power both your motor and your radio system eliminating the normal radio battery pack As the dual purpose battery runs down in flight the BEC circuit in the ESC will shut down the motor and leave eno...

Page 3: ... Phillips Head Screws Control Horns Etc 5 Painted Fiberglass Horns for ail 2 elev 1 rud 2 Pushrods 2 3mm x 70mm dia Steel Aileron Pushrods 1 3mm dia x 140mm Steel Elevator Pushrod 5 Metal R C Links elev 1 rud 4 5 Ball Link pushrod connectors ail 4 elev 1 5 M3 x 16mm Machine Screws for Ball links 5 M3 Locking Nuts 2 Pull Pull Rudder Parts Kit Miscellaneous 1 Aluminum Wing Joiner tube 4 1 4 20 x 1 3...

Page 4: ...u must be careful around seams or color joints Getting too much heat on the seams may cause them to creep or come loose You must also be careful when using a heat gun when working around the windshield and side windows heat will distort the clear plastic material Recommended Temperatures To adhere the covering 220OF 250OF 104OC 121OC To shrink the covering 300OF 320OF 149OC 160OC NOTE In this manu...

Page 5: ... is now in the proper position for permanently gluing them in place with thin CA glue d Flex the aileron down and hold it in this position Remove the pins from one hinge and then carefully apply 3 4 drops of thin CA glue directly onto the hinge in the gap You will notice that the glue is quickly wicked into the slot as it penetrates both the wood and the hinge We suggest using a fine tipped applic...

Page 6: ...Y TAIL INSTALLATION For the following steps you will need 1 Fuselage 1 Aluminum Wing Tube 2 Wings 4 Nylon Wing Bolts 1 Horizontal Stabilizer Elevator set 1 Vertical Fin Rudder Set 5 Install the Horizontal Stabilizer and Elevator a Remove the elevator and hinges from the horizontal stabilizer and set them aside for now Draw a center line on the stabilizer mount and on the horizontal stabilizer Test...

Page 7: ...joiner into the elevator halves with the rounded center section pointing to the trailing edges of the elevatorhalves line the halves and joiner up using a straight edge and mark where the joiner exits the halves of the elevator h Remove the joiner and roughen the fiberglass that slides inside the slots using sandpaper For added bite add grooves to the fiberglass with a sharp file or a Dremel tool ...

Page 8: ...alcohol and a soft paper towel Let the epoxy completely cure 7 Now it s time to install the rudder a Using a hobby knife carefully cut through the covering on the tail to expose the lowest hinge pocket then carefully insert one side of the three CA hinges into the hinge slots in the rudder using the same techniques you did for the ailerons back in Step 2 of this manual install the rudder on to the...

Page 9: ...ad an M3 nut and a metal clevis onto the brass rigging coupler Do this step four times c Slide one of the crimp tubes onto the nylon coated braided steel wire then thread the wire through the hole in the brass rigging coupler and back through the crimp tube d Loop the wire back through the crimp tube and pull the loops tight there s not much extra wire so being conservative here will give you a li...

Page 10: ...id like Locktite on all bolts and nuts used in the assembly of the landing gear 11 Assemble and install the main landing gear a Slide the threaded portion of the axle into the large hole of the landing gear leg and secure it with an M4 nut on each side Apply a drop of blue thread locking compound to each nut before tightening them When tightening the nut keep the flats of the hexnut on the axle si...

Page 11: ...er The front edge of the steering horn should be 3 8 back from the leading edge of the rudder Mark the location of the two steering arm holes on the bottom edge of the rudder b Using a 5 64 drill bit drill a hole at each location you marked making sure to keep the drill bit straight to the rudder you do not want the drill bit to come out the side of the rudder c Thread one of the M3 5 PWA screws i...

Page 12: ...e you need to locate the front of the firewall from the front of the adjustable motor mount With the motor we are using in these photos the motor measurement is 2 5 8 So 8 5 8 minus 2 5 8 6 Your result may be different depending on your motor d Carefully measure and mark the distance determined in the previous step from the front of the firewall to the front of the adjustable motor mount Do this a...

Page 13: ...orarily connect it to the receiver d Connect the ESC s motor wires to the motor Operate the motor and check the direction of rotation NEVER DO THIS WITH A PROPELLER INSTALLED If you need to reverse the rotation refer to the instructions that came with the motor and ESC SAFETY ISSUE We strongly recommend the use of an arming switch for your motor installation With an arming switch you can install y...

Page 14: ...the cowl When you are satisfied with the cowl s placement tape it in place using masking tape b Use a 1 16 bit to drill holes in the firewall for the cowl mounting screws through the pre drilled holes in the cowl c Remove the cowl and thread a M3 x 10mm screw into each of the four cowl mounting holes then remove the screws d Apply a drop or two of thin CA to each of the four cowl mounting screw ho...

Page 15: ...n the bottom surface of the pilot and use epoxy to glue the figure in place b Before applying glue to the canopy attach the hatch to the fuselage There are two locating pins at the front and two hooks at the rear Slide the pins into the pin slots in the rear side of the firewall lower the rear end of the hatch onto the fuselage and allow the hooks to catch Now slide the hatch toward the rear of th...

Page 16: ...k the balance point on the top of the wing next to the fuselage Make the same marks on both sides of the fuselage Flip the aircraft upside down inverted and place your fingertips on the balance point on both sides of the airplane and carefully lift the plane No part of the model should be touching anything except your fingertips If the EDGEtra will sit on your fingertips in a level attitude then i...

Page 17: ...gh at the initial aileron settings but they can be very axial with practice Inverted flight is easy requiring surprisingly little down elevator for level flight The EDGEtra also performs nice inside and outside loops snap rolls Immelmann turns stall turns Cuban eights and spins As with any aircraft getting consistently good results is a matter of practice While still at altitude throttle the engin...

Page 18: ... A TOY Flying machines of any form either model size or full size are not toys Because of the speeds that airplanes must achieve in order to fly they are capable of causing serious bodily harm and property damage if they crash IT IS YOUR RESPONSIBILITY AND YOURS ALONE to assemble this model airplane correctly according to the plans and instructions to ground test the finished model before each fli...

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