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FINISHING AND 
PREFLIGHT 
REPARATION  

 

Center of Gravity     

 

1.  The recommended CG is 3 7/8” inches from the 

leading edge of the wing at the wing root where it 
meets the fuse.  

Do not skip this step!   

 

 
 
 

 

 

2. 

Balance the Stingray with the battery installed 
and ready to fly.  The motor, speed control, 
servos, and battery you use will determine the 
final weight and locations of equipment.  Try to 
balance the model by moving the battery, speed 
control, and receiver before adding any ballast.

 

 

 

 
 
 

 
 
 
 
 
 
 
3. Start at recommended CG until you are 

comfortable with the flight characteristics of the 
aircraft.  You may find this a bit nose heavy at 
first but that is fine to start with.  After you are 
comfortable adjust the CG to suit your flying 
style in small steps, especially when shifting the 
CG toward the tail.  Move the battery or add 
small stick on weights to the nose or tail as 
necessary.   

 
4.  For aerobatic flying a more aft balance point is 

better.  For smooth sport flying a more forward 
CG is better.  An aircraft that is too nose heavy 
does not fly well and is difficult to land.  A tail 
heavy aircraft is uncontrollable and will likely 
crash.  

 

Control Throws    

 
5.  The amount of control throw should be adjusted 

using mechanical means as much as possible and 
then electronically with the radio.  The control 
throws are shown in degrees and inches of 
deflection measured at the widest point of the 
control surface for both low and high rates. 

 
6.  Aileron throw measured in inches. 
 

 

 

38 

 

Summary of Contents for STINGRAY ELECTRIC ARF

Page 1: ...STINGRAY ELECTRIC ARF ASSEMBLY MANUAL 1...

Page 2: ...ct Information 3 Introduction 4 Kit Contents 5 Items needed to complete 7 Covering 8 Wing Assembly 9 Servos Stab Elevator Assembly 17 Rudder Motor and Landing Gear Installation 26 Radio Installation 3...

Page 3: ...ou will ever build and fly We provide you with the highest quality kit and performance possible We wish you great success in the assembly and flying of your new Aeroworks Stingray Electric ARF WARNING...

Page 4: ...spect all parts and hardware for imperfections or damage Notify AEROWORKS IMMEDIATELY if there are missing or damaged parts IMPORTANT Please read through the assembly manual carefully before starting...

Page 5: ...2 Horizontal stabilizer and elevators covered Elevators in place with CA hinges not glued Control horn holes pre drilled 5 Elevator connecting wire installed not glued 3 Fuselage assembled and covered...

Page 6: ...eel with plastic color 1 tail wheel mounting plate 2 tail wheel sheet metal mounting screws 2 wheel pants 4 wheel pant sheet metal mounting screws 5 Control system parts 4 wire pushrods 4 pushrod easy...

Page 7: ...ecommend Hitec HS 55 servo 1 x elevator mini servo Recommend Hitec HS 55 servos 1 x 6 servo extension 2 x 12 servo extensions 1 Y harness 4 Ch minimum receiver feather or micro size 7 Tools Modeling k...

Page 8: ...ng you will be rewarded with a long lasting beautifully covered model 2 Using your covering iron with a soft sock gently apply pressure and rub in the covering If any bubbles occur your iron may be to...

Page 9: ...tered Next slide hinges into pre cut slots Make sure that slot in CA hinge runs perpendicular to hinge line This allows CA to wick to the back of the hinges 3 Next slide the aileron onto wing making s...

Page 10: ...he base of the control horn on the bottom of the aileron Clean the area with alcohol This will allow the CA glue to penetrate and bond the control horn to the wood 7 Use a small piece of medium sand p...

Page 11: ...servo arm holes if necessary Do not over tighten the nut The easy link must rotate freely in the servo arm Secure the nut with Lock Tite or a small drop of CA glue 11 Locate and pull out the string f...

Page 12: ...l the servo plug through the pre cut hole at the center of the wing 15 Use a small piece of masking tape to tape the servo wire to the top of the wing 16 Install the servo in the servo hole with the s...

Page 13: ...ll the servo mounting holes 18 Mount the aileron servo using servo mounting screws 19 Make a 90 bend 1 4 from the end of the wire aileron pushrod 20 Slide the nylon pushrod keeper on to the aileron pu...

Page 14: ...hole in the control horn Install the nylon pushrod keeper onto the end of the push rod as shown 23 Ensure the servo arm is centered in the neutral position and then tighten the easy link screw against...

Page 15: ...wing root 27 Carefully thread the string and the servo wire under the center of the wing and out through the hole with the remaining servo wire Use caution not to let either servo wire fall back insid...

Page 16: ...29 Finally insert the Y connector plug inside the wing center section with just the single wire extension extending outside the wing 16 The wing assembly is now complete...

Page 17: ...rom vibration or light tension 3 Attach an easy link to the elevator servo arm as shown Use a 2mm or 5 64 bit to drill out the servo arm holes if necessary Do not over tighten the nut The easy link mu...

Page 18: ...drill the servo mounting holes 6 Mount the elevator servo using servo mounting screws 7 Mount the rudder servo the same way in the right side of the fuse as shown 8 Gather the stab and elevator parts...

Page 19: ...se mark both sides of the trailing edge next to the fuse with a sharp pencil as shown 11 Use a bean bag or some other small weight to keep the fuse from moving on the work table Measure from the insid...

Page 20: ...ly peel off the covering material between the fuse lines to allow a good wood to wood epoxy bond 15 IMPORTANT Install the wire elevator connecting rod in the fuse slot as shown Do not forget to do thi...

Page 21: ...er the stab in the fuse and align with pencil lines on stab covering 18 Use alcohol wetted pads to wipe away excess epoxy on top and bottom of each side of the stab Be sure to remove any finger prints...

Page 22: ...n with a sharp pencil 23 Remove the elevator control horn Use a T pin to punch small holes through the covering material under the base of the control horn on the bottom of the elevator Clean the area...

Page 23: ...CA to wick under the control horn but do not allow excess CA to run out and bond to the covering material 27 Push a T pin through the center of all CA hinges This will ensure hinges remain centered N...

Page 24: ...excess epoxy with alcohol wipes Ensure there is no epoxy remaining anywhere between the trailing edge of the stab and the elevator 31 Slide the elevators onto the stab making sure all hinges go into...

Page 25: ...d through the middle hole in the control horn Install the nylon pushrod keeper onto the end of the pushrod as shown Ensure the servo arm is centered in the neutral position and then tighten the easy l...

Page 26: ...his will allow the CA glue to penetrate and bond the control horn to the wood 3 Use a small piece of medium sand paper to scuff the bottom of the rudder control horn as shown Clean the bottom surface...

Page 27: ...e the wheel keeper in place Do not use too much CA and allow the CA to wick inside the wheel hub and glue the wheel to the axle 7 Slide the brass tail wheel mounting plate on the tail wheel strut as s...

Page 28: ...rudder onto the vertical fin making sure all hinges go into their slot Remove the T pins and press the rudder against the fin trailing edge Allow enough hinge gap to ensure maximum control throws 11...

Page 29: ...as shown below 16 To help with alignment tape the leading edge of the rudder to the fin as shown First slide the pushrod through the servo arm easy link and then install pushrod through the middle hol...

Page 30: ...or any future adjustments 18 Gather the motor and RC electronics as shown below 19 Measure the diameter of the motor hub you are using 20 If necessary enlarge the center hole in the motor mount to pro...

Page 31: ...e with tape 23 Remove the Velcro battery mounting strap and set aside Insert the speed control power leads under the battery mounting tray and fish up through the hole nearest the motor power leads 24...

Page 32: ...w the battery mounting tray 26 Gather the propeller and mounting hardware for the motor you are using The black plastic spinner provided with the Stingray kit may be used if the prop mounting hardware...

Page 33: ...1 Check that the locations of the pre marked mounting holes fit the pre drilled holes in both left and right landing gear struts before drilling The leading edge of the landing gear struts should be p...

Page 34: ...thout excess play or wobble 34 Thread the flat regular nut all the way down against the lock nut and tighten against the lock nut This nut is a standoff spacer for the wheel pant 35 Insert the bolt th...

Page 35: ...f the landing gear struts should be parallel to the leading edge of the plywood landing gear mounting plate 39 Mount the speed control under the battery tray with double sided foam mounting tape 40 Ro...

Page 36: ...g switch inside the battery compartment on the battery tray forward of the battery The switch is armed before the battery hatch is installed The switch may be mounted on the fuse side for outside acce...

Page 37: ...nt the receiver and antenna spool to the fuse with double sided mounting tape 47 Route the antenna through the bottom of the fuse just aft of the wing saddle as shown The antenna is secured to the bot...

Page 38: ...hat is fine to start with After you are comfortable adjust the CG to suit your flying style in small steps especially when shifting the CG toward the tail Move the battery or add small stick on weight...

Page 39: ...lection Table Low Rate High Rate Aileron 5 8 or 12 up 7 8 or 16 up 5 8 or 12 down 7 8 or 16 down Rudder 3 4 or 18 left 1 1 4 or 25 left 3 4 or 18 right 1 1 4 or 25 right Elevator 1 2 or 12 up 3 4 or 1...

Page 40: ...nd are centered Check that all hinges are tight and will not pull out Control linkages must be rigid and tight and have no slop Confirm proper direction of ailerons rudder and elevator Experienced fly...

Page 41: ...be rigid and tight and have no slop to avoid flutter at high speed Large flight control throws can produce extreme and exciting maneuvers but can also generate tremendous stress on the airplane if ful...

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