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Extreme Flight RC YAK-54 EXP, Manual

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Extreme Flight RC YAK-54 EXP Manual Download Page 9

8.  Locate the carbon fiber main landing gear, 2 axles, 2 washers, 2 locking 
nuts, 2 wheels, 2 wheel collars and 2 wheel spats from the hardware package.  
Drill a 3 mm hole through the spat to accept the threaded portion of the axle 
as shown in the picture below. Place the threaded portion of the axle through 
the hole in the wheel spat, through the hole in the carbon gear, slide a washer 
over the threaded portion and screw the lock nut onto the axle. Tighten the 
nut securely making sure the spat is in the proper position.  Place the wheel 
onto the axle and secure with a wheel collar.  Repeat this process for the 
remaining wheel/spat.  This is probably better explained in the following 
series of pictures

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9

 

 

Summary of Contents for YAK-54 EXP

Page 1: ...YAK 54 EXP 48 inch Electric ARF 1 ...

Page 2: ...een changed to the style of the 60 inch EXP aircraft as it has been proven in these airframes to be rock solid and easier to assemble in production Due to customer feedback we have also changed the wing retention method to make it much easier to attach the wings to the fuselage The wings are also slightly recessed into the fuselage sides which provides a much cleaner appearance and insures the win...

Page 3: ... motor box joints 5 All of the G10 control horns are the same with the exception of the elevator horn Its base has been shortened to fit the depth of the elevator 6 When applying decals first clean the area where the decal will be applied with alcohol Mist the area lightly with Windex before applying the decal which will allow you to properly position it then use a rubber squeegee to push all of t...

Page 4: ...e pliers Metric balldriver or allen key set 4 sub micro metal geared servos All flight testing was performed with Hitec HS 65MG and HS 5065MG digital servos and we strongly recommend the use of either of these high quality servos Torque 2814T 820 Brushless Outrunner motor Airboss Elite 45 Amp ESC 4S 2100 2700 mah LiPo battery APC 12x6 E NOT the slow fly version or XOAR 12x6 electric prop 52mm Extr...

Page 5: ...Remove the ailerons from the wing and remove the covering over the slot for the aileron horn on the bottom of the aileron with a sharp hobby blade Make sure you are doing this on the bottom of the aileron 2 Scuff the portion of the control horn that will be glued into the aileron with sandpaper 5 ...

Page 6: ...e tip on your bottle of medium CA and apply glue to the slot as well as to both sides of the control horn Insert the control horn into the slot and make sure it seats properly against the surface of the aileron 6 ...

Page 7: ... hinges are centered in their slots 5 Slide the aileron into position on the hinges and secure with several drops of fresh thin CA This process is much easier and more effective if a fine glue tip is used Make sure to deflect the surface as pictured while applying the CA 7 ...

Page 8: ...utput shaft is positioned toward the trailing edge of the wing 7 Locate the 2 threaded pushrods that are the same size and 4 micro ball links along with 4 2mm screws nuts and washers Thread the ball links onto each end of the pushrods and secure to the servo arm and control horn with the 2 mm hardware as shown in the picture Use the longest arm provided with your servo Repeat this process for the ...

Page 9: ... below Place the threaded portion of the axle through the hole in the wheel spat through the hole in the carbon gear slide a washer over the threaded portion and screw the lock nut onto the axle Tighten the nut securely making sure the spat is in the proper position Place the wheel onto the axle and secure with a wheel collar Repeat this process for the remaining wheel spat This is probably better...

Page 10: ...10 ...

Page 11: ... the landing gear and gear cover to the fuselage by inserting a the 2 3mm screws into a washer through the hole in the gear cover and carbon fiber gear and into the pre installed blind nut in the fuselage Make sure to use a drop of blue Loctite on each screw to prevent them from backing out 11 ...

Page 12: ...ehind the elevator slot 11 Insert the stabilizer into its slot and the carbon fiber wing tube into the plastic sleeve Use a ruler to insure that the stabilizer is centered in its slot and compare the stabilizer to the wing tube to make sure it is properly aligned Sand or shim the slot if necessary to ensure proper alignment Secure the stabilizer with CA 12 ...

Page 13: ...rn is the one with the shortest shank that is glued into the surface Scuff the portion of the control horn that will insert into the elevator with sandpaper Secure the control horn with medium CA 13 Slide the elevator onto the hinges in the stabilizer and secure with thin CA Again a fresh bottle of CA and a fine glue tip work best here 13 ...

Page 14: ... over the slot in the lower right side of the rudder where the rudder control horn will be installed Scuff the portion of the control horn that will glue into the surface and secure the rudder control horn with medium CA 14 ...

Page 15: ...heel assembly in the hardware package Secure the tailwheel bracket to the bottom rear of the fuselage with the provided wood screws Make sure the pivot point of the assembly is over the hinge line of the rudder for best results 17 Secure the tiller using the provided screw but do not over tighten as the tiller should be able to move on the screw as the rudder is deflected 15 ...

Page 16: ...aft toward the rear of the aircraft while the rudder servo output shaft should be toward the front of the aircraft 20 The rudder and elevator servo linkages assemble and are installed just like the aileron linkage For maximum elevator travel we have included a G10 control horn which is bolted to the stock control horn provided with the servo We have found it easiest to tack glue the G10 arm to the...

Page 17: ...17 ...

Page 18: ...21 Next lets prepare the Torque 2814 820 for mounting First install the retaining collar onto the motor shaft and secure with the set screw Make sure to use blue Loctite on all motor bolts 18 ...

Page 19: ...22 Slide the black radial mount over the shaft and collar and retain using the 4 tapered Phillips head screws 23 Install the prop adapter onto the front of the motor using the 4 slotted head screws 19 ...

Page 20: ...oll Place each piece of tape on the side of the fuselage so that each piece corresponds with one of the 4 cowl mounting tabs Use a fine tipped marker to mark the location of the center of each mounting tab Roll the tape back and slide the cowl into position Install an Extreme Flight 52mm spinner onto the motor shaft for reference and once satisfied with the cowl position roll the tape back into pl...

Page 21: ...21 ...

Page 22: ...26 Use a sharp hobby knife to remove the covering from the opening in the bottom of the fuselage under the canopy to allow cooling air to exit the fuselage 22 ...

Page 23: ...r side of the motor box 28 Place a strip of Velcro onto the battery tray and onto your battery and use a Velcro strap around the battery and tray to prevent the battery from being ejected during high G maneuvers Mount your receiver on the wing retention cross brace 23 ...

Page 24: ...nd SFG to prevent the SFG from interfering with the aileron movement There are 2 laser cut holes in each SFG which correspond with 2 laser cut holes in the tip of each wing Insert the bolts into the plastic washers and through the laser cut holes in the SFG and the holes in the clear spacer Mount the SFG onto the wing tip by inserting the 2 bolts into the pre installed blind nuts in the tip of the...

Page 25: ... is flown inverted straight and level it requires no down elevator to maintain altitude If your flying style leans more toward precision aerobatics then I recommend setting your CG using the 45 degree line test Fly the aircraft from left to right or right to left whichever direction you are more comfortable with at 3 4 to full throttle Pull the aircraft to a 45 degree up line and establish this li...

Page 26: ...neuver If your radio will allow I suggest setting up 3 elevator rates or a flight condition that will allow you a rate for precision flying another for harriers and the majority of 3D maneuvers and a final rate with as much travel as you can get for the crazy tumbles and flips Here are some suggested rates to get started with These are the rates and exponential values I feel comfortable with They ...

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