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When it comes to test flying a new model, we always advise mod-
elers to choose a calm day with little or no wind.  These conditions
allow you to better evaluate and more accurately adjust the trim
requirements for your airplane.  As we’ve mentioned before, a
good running, reliable motor is a must for the ultimate success of
your airplane.  Take the time to solve any power system problems
before you try to fly.  

Always make it part of your pre-flight routine to check each control
on the airplane, making sure the surfaces are moving in the cor-
rect directions.  Also check each control linkage to be sure they
are  secure  and  that  nothing  is  loose.    With  all  the  controls
checked, make a range check with your radio system, making
sure everything is working perfectly.

We hope that your T-CLIPS will provide you with many enjoyable
hours of flight.  Good luck and safe flying!

"T-CLIPS" is the name given to a one-of-a-kind clipped wing Tay-
lorcraft owned and flown by air show pilot Erik Edgren.  Beginning
life in 1939 as a stock Taylorcraft Model BC-65, Erik's "T-CLIPS"
is powered by Continental C-85 engine, which was an original Tay-
lorcraft factory option.  That makes "T-CLIPS"  the only clipped
wing T'craft currently flying air shows with an original size engine.
Erik refers to this as "Twistin It Old School". 

Learn more at

www.ErikEdgrenAirshows.com

FLYING

16

WARNING!  THIS IS NOT 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 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  AERONAUTICS,  commonly  called  the
AMA.  The AMA SAFETY CODE provides guidelines for the safe opera-
tion of R/C model airplanes.  While AMA membership is not necessarily
mandatory, it is required by most R/C flying clubs in the U.S. and provides
you with important liability insurance in case your R/C model should ever
cause serious property damage or personal injury to someone else.

ACADEMY OF MODEL AERONAUTICS

5161 East Memorial Drive

Muncie, IN  47302

Telephone:  (765) 287-1256

AMA WEB SITE:  www.model aircraft.org

CUSTOMER SERVICE

SIG MFG. CO., INC. is committed to your success in both assembling 
and flying the 

T-CLIPS 

ARF.  Should you encounter any problem building

this kit or discover any missing or damaged parts, please feel free to con-
tact us by mail or telephone.   

SIG MFG. CO., INC.

P.O. Box 520

401 South Front Street

Montezuma, IA  50171-0520

                               PHONE:  1-641-623-5154

                                     FAX:  1-641-623-3922

SIG WEB SITE:  www.sigmfg.com

SIG E-MAIL:  mail@sigmfg.com

LIMIT OF LIABILITY

The craftsmanship, attention to detail and actions of the builder/flyer of 
this model airplane kit will ultimately determine the airworthiness, flight 
performance, and safety of the finished model.  SIG MFG. CO.’s obligation
shall be to replace those parts of the kit proven to be defective or missing.
The  user  shall  determine  the  suitability  of  the  product  for  his  or  her 
intended use and shall assume all risk and liability in connection therewith.

“T-CLIPS” owner and air show pilot Erik Edgren.

(photo from October 2009 SPORT AEROBATICS magazine)

THE “T-CLIPS” STORY

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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