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The wings are designed as a 2-piece system, with separate right
and left wing panels joined by an aluminum tube Wing Joiner and
a hardwood locating Pin at the rear.  Due to the high strength of
the wing joiner tube, the wing panels do not need to be perma-
nently glued together.  Gluing them permanently together is op-
tional - your call.  The obvious benefit to leaving the wing panels
separate is the fact that they can be easily transported or stored,
requiring a minimum of space.

To help protect your wings during the following steps we recom-
mend that you cover your work surface with a soft cloth or piece
of foam.  

INSTALLING THE AILERON SERVOS

For the following steps you will need:

    (1) Right Wing Panel
    (1) Left Wing Panel
    (1) Aluminum Tube Wing Joiner
    (2) Servos with Mounting Screws (not furnished)
    (2) 6” Servo Extension Cords (not furnished)
    (1) Servo Y- Harness (not furnished)

❑ 

1)  Mount the aileron servos in the bottom of each wing panel.

    a) The servo bays are precut for you but you’ll want to double

check the covering around the cutout to make sure it is sealed
down tight.  

    b) Install the rubber grommets and brass eyelets (supplied with

your radio system) into each aileron servo. 

    c) Install the control arms on the two aileron servos.  The arms

should be at 90 degrees to the servo when the aileron control stick
on the transmitter is in neutral and the transmitter trims are in neu-
tral as well.

    d)  Before installing the aileron servos in the wing panels you

must attach a servo extension cord to the aileron servo wire.  The
typical combined length required is approximately18”.  A 6” exten-
sion chord will usually provide sufficient length.  Plug the servo
plug into the extension cord and tape the plugs together for added
security.   

     e) Holding the wing panel with the wingtip UP, drop the end of

the extension chord into the servo mount cutout and then thru the
openings in the wing ribs, working it towards to the center end of
the wing panel.  The plug on the end of the extension chord will
occasionally get hung up on the ribs, however by turning or gently
shaking the wing panel you can get it to fall through the openings
in the ribs, until it emerges at the end rib.  Once you’ve got the
plug to the end rib, direct it through the round hole in the bottom
surface of the wing panel.  By that time, the servo itself should be
next to the servo mount cutout and ready for mounting.

     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
chord 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.

HINGING THE AILERONS

❑ 

2)  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 five 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 five 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 it straight onto all the hinges at once. 

    c) Adjust the aileron so that the tip of the aileron is flush with

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.

5

WING ASSEMBLY

Summary of Contents for T-Clips 70

Page 1: ... oz sq ft 57 64 g dm2 Radio Required 4 Channel with 5 Standard Servos glow 4 Channel with 4 Standard Servos electric Glow Power 2 Stroke 53 61 cu in 8 6 10 0 cc 4 Stroke 53 65 cu in 8 5 10 7 cc Electric Power 1200 1700 watt Brushless Motor 300 400 kv 75A Speed Control ESC 4S 6S 4000 5000 mah Lipo Battery Pack SIG MFG CO INC PO Box 520 Montezuma IA 50171 0520 www sigmfg com ...

Page 2: ...OKE 53 to 61 cu in 4 STROKE 53 to 65 cu in Whatever brand engine you choose take the time to carefully break it in according to the manufacturer s instructions A good running reliable engine is a minimum requirement for the enjoy ment of this or any R C model aircraft PROPELLER FOR GLOW Refer to the engine manufacturer s instructions for recommenda tions on proper propeller size for their engine I...

Page 3: ...ge cycle This translates to better flight times and a longer life from the battery pack REQUIRED TOOLS For proper assembly we suggest you have the following tools and materials available A selection of glues SIG Thin Medium Thick CA Glue CA Accelerator CA Debonder SIG Kwik Set 5 Minute Epoxy Screwdriver Assortment Pliers Needle Nose Flat Nose Diagonal Wire Cutters Small Allen Wrench Assortment Pin...

Page 4: ...r Set your iron to a medium setting Glide the iron over some of the covering that is over solid wood such as the sheeted wing center section Observe the covering to see if any bubbles appear If bubbles appear the covering is getting too hot Turn down the temperature of the iron and repeat the test If no bubbles appear turn up the heat slightly and repeat the test Keep adjusting until you zero in o...

Page 5: ... get it to fall through the openings in the ribs until it emerges at the end rib Once you ve got the plug to the end rib direct it through the round hole in the bottom surface of the wing panel By that time the servo itself should be next to the servo mount cutout and ready for mounting f Fit the servo into the servo mount in the wing panel note that the servo is positioned so that the servo arm i...

Page 6: ...uel Tubing onto the small end of the Metal R C Clevis Screw the Hex Nut on the Aileron Pushrod Wire all the way up to the end of the threads Then screw the metal clevis halfway onto the threaded end of the Aileron Pushrod Wire b Clip the metal clevis into the last hole in the nylon control horn Lay the other end of the pushrod wire over the outer hole in the servo arm Use a felt tip pen to mark th...

Page 7: ...th an 11 64 or 17 drill bit 8 Slide a second Wheel Collar onto the axle and up to the wheel Leave a small gap between it and the wheel so the wheel will turn freely and then tighten the wheel collar set screw 9 Check the orientation of the landing gear to make sure you know which way is forward The two outer holes for mounting the gear to the fuselage go to the front Test fit the wheel pants over ...

Page 8: ...fuselage and stabilizer Check to see that the fin sits flush and perpendicular to the stabilizer 16 Glue the fin in place using slow drying epoxy glue Apply a thin coat of glue to the bottom of the fin and to the exposed wood on the stab With the fin in place sight the model from the front to make sure the fin is absolutely 90 degrees upright to the stab If needed use a little masking tape to hold...

Page 9: ...o the exit hole and inside the pushrod sleeve built into the fuselage Slide it in until you can clip the clevis into the middle hole of the control horn Lock the elevator in neutral position with tape or with two small balsa wood sticks held together with small rubber bands c Inside the fuselage hold the pushrod wire over the elevator servo output arm and mark the wire where it crosses over the ou...

Page 10: ...front of the firewall from the back edge of the plywood motor mount box With the motor we are using in these photos the motor measurement is 3 21 So 5 25 minus 3 21 2 04 Your result may be different depending on your motor b Carefully measure and mark the distance determined in the previous step from the back edge of the motor mount box towards the front Do this along side each of the adjustment s...

Page 11: ...he top and sides together securely b Take one of the supplied Velcro straps and pull the short fuzzy portion loose from the longer hook strap Glue one end of the short fuzzy strap on to one of the box sides as shown in the following photo Glue the plain side to the wood not the fuzzy side Epoxy glue works best for this step c Cut the hook strap in half and then glue one end of it to the other box ...

Page 12: ...f the cowling so that more cool air can come in This positive air flow keeps your motor running cool We rec ommend that you make a simple opening at the bottom rear edge of the cowling as shown in the next photo to provide additional air exit area The exact dimensions are not critical Note A Dremel Tool or similar rotary hand tool with an assort ment of bits is without a doubt the best tool to use...

Page 13: ...learance hole would be a 5 32 dia drill bit 41 Next assemble the Fuel Tank a Locate the Rubber Stopper Assembly There are three nylon tubes going through the rubber stopper Orient the stopper so that one of the tubes is towards the top and then bend that tube up at a 45 degree angle Do not apply heat to the tube it will bend without heat Just overbend it to nearly 90 degrees and then let it relax ...

Page 14: ... it much easier to tighten the hex nuts When fin ished install the throttle servo arm back onto the servo 45 Install the throttle pushrod a Start by test fitting the throttle pushrod wire in the airplane sliding the plain end of the wire in from the front Steer the pushrod through the hole you drilled in the firewall then through the hole in the rear tank mount and then back to the pushrod con nec...

Page 15: ...6 type glue Do not use thin CA glue because it can cloud the plastic Apply a thin bead of glue around the edge of the window and press the window in place from the inside of the fuselage Don t use too much glue or it may ooze out onto the outside surface of the window Use a few small pieces of low tack tape to hold the window in place until the glue dries CONGRATULATIONS Your T CLIPS 70 is complet...

Page 16: ...ructions to ground test the finished model before each flight to make sure it is com pletely airworthy and to always fly your model in a safe location and in a safe manner The first test flights should only be made by an experienced R C flyer familiar with high performance R C aircraft JOIN THE AMA The governing body for radio control model airplanes in the United States is the ACADEMY OF MODEL AE...

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