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the clasp at the halfway point on the wire, and then drill a hole for
the M2 x 15mm Bolt.  Insert the bolt through the hole and tighten
down the M2 Hex Nut to clamp the bracket in place.

RADIO INSTALLATION

For 

this section you will need:

(1)  Radio Receiver (not furnished)
(2)  Servos with Mounting Screws (not furnished)

22) Install the rudder and elevator servos inside the fuselage in

the  built-in  plywood  radio  mounting  tray.    Note  that  the  rudder
servo goes on the right side of the airplane, and the elevator servo
goes on the left side.  Be sure to drill pilot holes through the ply-
wood tray for the mounting servo mounting screws.

23) Figure out where and how to mount your receiver.  This can

depend on several factors, starting with whether you are using a
glow engine or an electric motor for power.  We decided to mount
the receiver of our photo model, which will be electric powered,
on the left side of the fuselage, using a short piece of common
Velcro® tape (not furnished).  

ELEVATOR & RUDDER PUSHROD INSTALLATION

For 

this section you will need:

(1)  Fuselage
(2)  28” Long Pushrod Wires with M2 Hex Nut
(2)  Metal R/C Clevis
(2)  Nylon Snap Keepers
(2)  small pieces of Fuel Tubing

24) Assemble and install the elevator pushrod.

    a) First slide a small piece of Fuel Tubing onto the small end of

the  Metal  R/C  Clevis.    Next  screw  the  Hex  Nut  that  is  on  the
Pushrod Wire all the way up to the end of the threads.  Then screw
the metal clevis halfway onto the threads.

    b) Locate the pre-cut pushrod exit hole for the elevator on the

right  side  of  the  fuselage  at  the  back  of  the  plane.  Slide  the
pushrod into 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
outer hole in the servo arm.

    d) At the tail end, unlock the elevator from neutral position, and

then unclip the clevis from the control horn.  Remove the clevis
and the hex nut completely off of the pushrod and set them aside.
Now pull the pushrod out of the fuselage from the servo end.  It
will be easier to complete the next three steps with the pushrod
out of the airplane. 

    e) Cut off the pushrod wire 1/4” past the mark made at the

servo end in step c).  Then put a sharp 90-degree bend in the wire
at the mark.

    f) Remove the servo arm from the elevator servo.  Drill out the

last hole in the servo arm with a 1/16" dia. drill so it will accept the
pushrod wire.  Then insert the bent end of the pushrod wire into
the servo arm, from the top.  

    g) Clip a Nylon Snap Keeper in place to hold the pushrod wire

in the servo arm.  Snap the free end of the keeper up and over
the protruding end of the pushrod wire, underneath the servo arm.

    h) Now slide the pushrod back inside the pushrod sleeve in the

fuselage, from the front.  When it is in far enough, put the servo
arm back in place on the servo.

    i) Make sure that the elevator servo is in neutral position and

then adjust the metal clevis at the tail end as needed to get the
elevator in perfect neutral position.

j) After the elevator is properly adjusted, insure that the metal

clevis can’t open up and come loose from the control horn by slid-

9

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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