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3D Hobby Shop 60 inch Yak 55M, Assembly Manual

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3D Hobby Shop 60 inch Yak 55M Assembly Manual Download Page 13

installed in the elevator.  Note picture for elevator control horn slot location.  Open the slot and install

control horn with medium CA.

Install elevator servo and pushrod as shown.  The ball links are mounted to the elevator control arm and

servo arm with 2mm bolts, washers and lock nuts.  We are using a 1.25” servo arm for the elevator.

13

Summary of Contents for 60 inch Yak 55M

Page 1: ...y when working with adhesives knives or tools especially power tools ALWAYS keep hobby equipment and supplies out of the reach of children SAFETY in Flying This is NOT a toy It is a very high performance RC airplane capable of high speeds and extreme maneuvers It should only be operated by a competent pilot in a safe area with proper supervision ONLY fly your aircraft in a safe open area away from...

Page 2: ...assumes responsibility or liability for damages resulting from the end user assembled product The end user assumes all responsibility and liability in use of 3D Hobby Shop aircraft and components and agreeing to hold harmless 3D Hobby Shop it s distributors and dealers Required Items Hobby Knife Small Phillips Screwdriver Set Metric Allen Wrenches Scissors Small Pliers Wire Cutters Adjustable wren...

Page 3: ...s BE CAREFUL Too much heat applied too quickly can damage the covering either by causing it to pull away from the wood at seams and corners or even by melting it The covering will shrink at low temperature with patient application of heat Wrinkles in the covering DO NOT affect flight performance If you must shrink on a color seam use the iron and go slowly and carefully to avoid any pulling or lif...

Page 4: ...he wheel collars as shown Use blue Loctite on wheel collar set screws Slide one wheel axle assembly into a wheel pant and install the wheel assembly on the landing gear leg Tighten the locknut as shown to secure the assembly onto the gear leg Repeat for other side 4 ...

Page 5: ...Attach the gear to the fuselage with short 3mm screws use loctite 5 ...

Page 6: ...Install gear cover plate as shown with clear tape thick CA or epoxy glue 6 ...

Page 7: ...er horizontal stabilizer slot on both sides of fuselage as shown Remove covering over elevator servo opening on LEFT side of the fuselage as shown Remove covering over wing spar tube hole and wing pin holes in fuselage as shown 7 ...

Page 8: ...Remove a square of covering on bottom of fuselage behind wing as shown This is to allow cooling air to exit fuselage Now is a good time to go over all joints of the motor box with this CA 8 ...

Page 9: ... this time Next install the wing tube in the fuselage and sight from the back and notice if the horizontal stabilizer and wing tube are parallel to each other If not sand or shim the stabilizer opening until both are parallel Center the horizontal stabilizer measuring each side until even 9 ...

Page 10: ...d drip Thin CA glue onto the stab to fuselage joint top and bottom NOTE We do not remove any covering form the horizontal stabilizer This keeps the stabilizer strong and thin CA makes an excellent joint to covering material If your stab joint is not tight enough for thin CA glue or if you have to trim the opening to align the stab you can use medium CA glue to fill the gap 10 ...

Page 11: ...removable tape on the elevator counterbalance as shown This will hold the right side elevator in perfect alignment with the horizontal stab Install the other side elevator without glue and look at its alignment Make sure you can align both elevators sand the elevator joiner slot in the elevator if necessary Make sure you are happy with the alignment of the elevators Use medium CA or epoxy to glue ...

Page 12: ... of tape on the left elevator counterbalance to the stabilizer Apply thin CA to the elevator hinges and allow everything to dry Once the elevator assembly is dry install the elevator control horn Be sure to sand the portion 12 ...

Page 13: ...slot location Open the slot and install control horn with medium CA Install elevator servo and pushrod as shown The ball links are mounted to the elevator control arm and servo arm with 2mm bolts washers and lock nuts We are using a 1 25 servo arm for the elevator 13 ...

Page 14: ...control horn Use picture for reference in locating the slot Rough the control horn with sand paper where the glue joint will be so the CA may adhere better Install the rudder control horn with medium CA Center the rudder control horn in the rudder 14 ...

Page 15: ...Install the rudder take your time to align it and make sure it swings freely Apply thin CA to the rudder hinges Tailwheel Assembly Before installation use blue Loctite on all set screws 15 ...

Page 16: ...The tiller wire will need to be bent slightly to be inserted in the installed bracket on the bottom of the rudder Attach the tailwheel assembly to the fuselage with two wood screws as shown 16 ...

Page 17: ...wire as shown double looping the wire through the brass crimp sleeve before crimping Crimp the brass crimp sleeve tightly with pliers and apply a drop of thin CA to the crimp Install the ball links onto the rudder horn using the 2mm bolt screw washer and lock nut Assemble rudder servo arm with servo connectors as shown Be sure that the connectors are free to rotate on the arm and use medium or thi...

Page 18: ...all links on the rudder control horns Assemble the front ends of the pull pull cables as shown double looping the wire through the crimp sleeve Adjust your pull pull cables to be snug with no sag but not too tight Banjo string tight pull pull cables only sap the power from your rudder servo and cause poor handling Just snug is all you need Check the cables again after a few flights and retighten i...

Page 19: ...ng prop adaptors For this reason if your motor is compact you will need to supply spacers to extend the motor forward as shown Attach the motor using the included 4mms screws and blind nuts using Loctite Mount your ESC to the side of the motor box Notice the recommended Torque 4016T 500 motor is mounted flush to the firewall The Hacker A40 10S will require 25 spacers 19 ...

Page 20: ... the front inside of the fuselage The following procedure is helpful to be sure the wood screws hit the plywood squares First make small holes into the plywood squares through the covering with the cowl and canopy off Tape small pieces of paper over these holes as shown and mark the hole locations on these pieces of paper 20 ...

Page 21: ...Use masking tape to hold the cowl in place Drill pilot holes for the wood screws using the paper markers as a guide 21 ...

Page 22: ...Install the 4 wood screws Tip remove screws and cowl soak holes left in mounting tabs with thin CA This will strengthen the area Mount cowl again after CA is completely dry 22 ...

Page 23: ...ately 1 32 for maxim throw Glue the aileron hinges with two large drops of CA per hinge Open the aileron servo opening and control horn slot Here we have cut an X in the covering for the aileron servo no need to remove the covering over the opening 23 ...

Page 24: ...Rough the control horn as with the elevator control horn Glue with medium CA Install the aileron servo using the installed strings to guide the servo wire to the wing root 24 ...

Page 25: ...sing two ball links We are using a 1 servo arm for the ailerons NOTE the correct size aileron pushrods are included in the bag marked REPLACEMENT HARDWARE Repeat the aileron assembly for other wing Mount the wings to the fuselage using the aluminum thumbscrews 25 ...

Page 26: ...unt the balsa to the airframe Side Force Generators SFG SFG s are included with two spacers The small spacer can be used with the SFG s for conventional placement The differential drag wingtip blocks may also be used We encourage you to try flying the Yak with either system and without SFG s to see which best suits your flying style 26 ...

Page 27: ...The SFG s are mounted with 2 wood screws Locate the precut hole in both spacers and SFG Note additional longer wood screws are supplied in hardware bag marked REPLACEMENT HARDWARE 27 ...

Page 28: ...ouching elevator 80 expo Ailerons Low rate 17 degrees 1 75 deflection 30 expo High rate 30 degrees 2 25 defection 60 expo Remember JR and Spektrum radios use positive exponential Futaba and Hitec use negative The above throw measurements were taken at the aft edge of the ailerons and elevator and from the bottom aft edge of the rudder Keep in mind that even the low throws mentioned here are relati...

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