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3DHobbyShop.com Vyper 46" ARF, Assembly Manual

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3DHobbyShop.com Vyper 46

 

12

 

 

NOTE – RUDDER SERVO LOCATION 
 
The Vyper can use two types of power systems, lightweight 3S lipo systems and heavier 4S lipo 
systems.  For the lighter 3S systems, use the pull-pull rudder system with the servo mounted 
under the canopy.  For heavier 4S systems, use the rear-mount push-pull system with the steel 
pushrod.  If you are in doubt, we suggest using the pull-pull system.   
 
Both types of installation are detailed below. 
 
PULL-PULL Cable rudder servo installation

.  (If using the Rear-Mount rudder servo location, please 

skip forward to that section) 
Remove the covering over the control horn slot in the rudder in the location shown and install the double-
sided pull-pull control horn in the rudder with medium or thick CA glue.  Remove the covering over the 
slot for the cable to enter the fuselage, as shown. 

 

 
 

Summary of Contents for Vyper 46" ARF

Page 1: ...es out of the reach of children IMPORTANT NOTE We strive to provide the absolute best quality ARF aircraft on the planet However the ultimate success or failure of this aircraft is dependent upon proper assembly by you If you have questions about an assembly step please contact us or read the assembly thread for your airplane on RCGroups com before proceeding It is always better to slow down and b...

Page 2: ...of the world wrinkles may appear and disappear Wrinkles may be removed with the gentle application of heat to the covering material on your airplane The best tools to use are a heat gun and covering iron Apply the heat gently the covering material will shrink as you apply the heat and this will remove the wrinkles BE CAREFUL Too much heat applied too quickly can damage the covering either by causi...

Page 3: ...e axle Install the wheel collar to retain the wheel onto the axle as shown Slide the wheel axle assembly into the wheel pant Use the axle nut to affix the wheel axle pant assembly onto the gear leg as shown Install the landing gear legs into the fuselage with the shorter of the provided 3mm screws as shown ...

Page 4: ...ning screw and anti rotation pin Use either a sharp hobby knife or hot soldering iron to cut the covering away Also remove the covering over the horizontal stabilizer slot as shown on both sides Using a generous amount of thick or medium Ca glue in the slot install the vertical stabilizer onto the fuselage as shown ...

Page 5: ...he fuselage and slide the wings on as shown Measure as shown with a tape measure or yardstick to ensure that the stabilizer is straight Both sides should measure exactly the same Apply thin CA glue to the joint of the horizontal stabilizer and fuselage Allow the thin Ca to wick into the joint NOTE It is not necessary to remove any covering on the stabilizer ...

Page 6: ...glue is dry flex the elevators up and down to make sure you can achieve 45 degree of elevator throw in each direction without binding If the elevator hinge gap is too tight the elevators will bind so flexing them up and down before gluing ensures that you will have no binding Apply two drops of thin CA to each hinge and allow to dry Slide the rudder onto the back of the vertical stab make sure the...

Page 7: ...e tailwheel wire into the rudder with thick CA as shown Slide the tailwheel pivot plate over the wire and install with two screws as shown Install the tailwheel and collar tighten the collar NOTE YOU MUST INSTALL THE WIRE and PIVOT PLATE in the right location for the rudder to swing freely the pivot joint of the tailwheel must be in line with the rudder hinges If after you install the tailwheel th...

Page 8: ...ll with pre installed blind nuts that fit Omega Torque Reaper Hacker and other popular brands of brushless motors If your brand of motor uses a different bolt pattern use your hobby knife to carefully remove the blind nuts and plywood circle spacers from the back of the firewall and then re drill the firewall for your motor Assemble brushless outrunner motor as shown for mounting in front of the f...

Page 9: ... zip ties The cowl is mounted onto the fuselage with 4 wood screws These screws go into the small plywood squares on the front inside of the fuselage The following procedure is helpful to be sure the wood screws hit the plywood squares Install the canopy hatch if the canopy hatch is not installed when you fit the cowl it may be impossible to fit the canopy hatch after the cowl is installed Tape sm...

Page 10: ...that it cannot come loose Be sure to note that the two aileron control horns are different in shape from the elevator horn Open the covering over the elevator servo hole and the elevator control horn slot and install the elevator servo and pushrod as shown Glue the control horn into the slot with medium or thick CA glue Assemble the pushrod connector onto the servo arm as shown Note that this push...

Page 11: ...e the covering over the aileron servo openings and aileron control horn slots as shown Mount servo as shown Install aileron control horn into slot with medium or thick CA glue and assemble aileron pushrod onto servo arm exactly as you assembled the elevator control system Be sure the 2mm nut on the control horn is locked in place with CA glue ...

Page 12: ... steel pushrod If you are in doubt we suggest using the pull pull system Both types of installation are detailed below PULL PULL Cable rudder servo installation If using the Rear Mount rudder servo location please skip forward to that section Remove the covering over the control horn slot in the rudder in the location shown and install the double sided pull pull control horn in the rudder with med...

Page 13: ...he connectors can rotate freely Use a drop of CA glue on the nut to prevent it from loosening in flight Start by attaching the cables to the pull wire end Crimp well preferably by making creases in the crimp tube with a sharp pliers or cutters rather than smashing it completely flat Apply a drop of thin ca to the completed crimp to prevent it from sliding on the cable ...

Page 14: ... adjustment on each wire so your assembly must be accurate When you are certain your wire length is correct crimp the wire to the ends and use the adjustor to properly tension the wires as a final adjustment We want the wires to be snug without sag but not springy tight NOTE Proper adjustment of the pull pull wires is critical Too loose wires allow the rudder to flop back and forth in flight ruini...

Page 15: ...all the servo in the bottom rear of the fuselage as shown Assemble the rudder pushrod and control horn as shown Be sure to use CA glue to lock the 2mm nuts so they do not come loose in flight Install the rudder horn into the rudder with medium or thick CA and attach the pushrod to the servo arm as shown ...

Page 16: ...16 Remove the covering over one of the open bays in the bottom of the fuselage for battery motor cooling ...

Page 17: ...cision aerobatics I generally split the difference and fly with the CG set just slightly forward of neutral What this means is that the aircraft will require only the lightest breath of down elevator during inverted flight I ve found that this setting has excellent tracking for precision and no coupling during KE flight while still offering excellent 3D performance My personal setup is as follows ...

Page 18: ... rates but virtually any combination will work just be comfortable with your setup Low Precision Rates in degrees and inches and Corresponding Exponential Aileron 15 degrees 75 30 Expo Elevator 13 degrees 1 25 30 Expo Rudder 45 degrees 3 5 75 Expo High 3D Rates in degrees and inches and Corresponding Exponential Aileron 28 degrees 1 25 75 Expo Elevator 45 degrees 3 85 Expo Rudder 45 degrees 3 5 75...

Page 19: ...ve the rudder with your hand without the servo arm moving are a major contributor to poor aerobatic performance Periodically inspect the battery tray area in your aircraft This plane does excellent high speed tumbling maneuvers and this type of maneuver puts tremendous stress on the battery tray area Occasionally adding a bit of CA glue to the battery tray joints will help your aircraft last throu...

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