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3D Hobby Shop 49 Sukhoi 26MX, Инструкция по сборке

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Developer’s Note 

 

 

 

 

 

 

As a full-size Sukhoi pilot, one of my dreams has always been to see my airplane, N25SU, in 
model form. That dream got a little closer to reality when I started doing model development for 
3D Hobby Shop in 2006. At some point in late 2007, both Ben and I made a commitment to 
model the Sukhoi. Setting our sights rather high, we aimed to design what would be the premier 
Sukhoi model on the market, incorporating not only outstanding flying characteristics, but also 
many of the scale features rarely seen on Sukhoi models. We were able to accomplish both of 
those goals, and much more. I am proud to introduce the 3D Hobby Shop Sukhoi 26 in two 
distinct sizes – 49” and 57”. 
For me, the Sukhoi represents the ultimate aerobatic experience. Its combination of beautiful 
sculpted lines and aggressive stance make it one of the most distinct airplanes on the competition 
circuit. Designed in the mid 80’s, the Sukhoi 26 was created for one purpose, and one purpose 
alone – to dominate world aerobatic competition. Dominate it has, amassing more Gold 
International medals than all other designs combined. We wanted to design a model that captured 
that aggressive precision attitude, while combining it with unlimited 3D/freestyle performance. 
The 3DH Sukhoi’s clean lines allow great tracking, while the thin 10% airfoil allows great pitch 
performance and fast cruising speeds. Oversized control surfaces make the Sukhoi one of the 
most responsive 3D airplanes on the market. The roll rate, in particular, can be absolutely 
blinding. Unlike the full size Sukhoi, the 3DH version has only light coupling in KE flight, and 
only very light wing rock upright, none inverted. Typical of all 3DH airplanes, the Sukhoi 
incorporates all of the high end accessories you’ve come to expect including a carbon wing tube, 
carbon landing gear, tool-free wing attachment, slotted self-aligning wheel pants, and a complete 
hardware pack. In all, I feel the 3D Hobby Shop SU-26 is the ultimate Sukhoi RC model airplane 
available today.  

-

Scott Stoops 

3D HOBBY SHOP 

 

Содержание 49 Sukhoi 26MX

Страница 1: ...t However the ultimate success or failure of this aircraft is dependent upon proper assembly by you If you have questions about an assembly step please contact us or read the assembly thread for your airplane on RCGroups com before proceeding It is always better to slow down and be sure of your assembly than to rush through it and make a mistake which can cause a crash SAFETY in Flying SAFETY NOTI...

Страница 2: ...Sukhoi 26 was created for one purpose and one purpose alone to dominate world aerobatic competition Dominate it has amassing more Gold International medals than all other designs combined We wanted to design a model that captured that aggressive precision attitude while combining it with unlimited 3D freestyle performance The 3DH Sukhoi s clean lines allow great tracking while the thin 10 airfoil ...

Страница 3: ...y of balsa wood As your airplane adjusts to the weather in your part of the world wrinkles may appear and disappear Wrinkles may be removed with the gentle application of heat to the covering material on your airplane The best tools to use are a heat gun and covering iron Apply the heat gently the covering material will shrink as you apply the heat and this will remove the wrinkles BE CAREFUL Too ...

Страница 4: ...cure with the wheel collars as shown 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 Only do ONE assembly at this time ...

Страница 5: ... pant as shown going in half way Remove the screw cut of the screw off with wire cutters and re install as shown Slide the gear leg through the slot as shown and secure the gear to the fuselage with short 3mm screws Repeat wheel and pant assembly for other side ...

Страница 6: ...ron Insert double sided rudder horn into slot as shown Make sure rudder horn is centered and apply several drops of thin CA to secure the rudder horn Measure back 2 5 from the hinge line on the bottom of the rudder This is where we will install the tiller guide for the tailwheel Mark this location ...

Страница 7: ...er holder with thick CA glue Install rudder onto fuselage and apply 2 large drops of thin CA to each hinge Install tail wheel as shown Use two wood screws to secure bracket to fuselage Remove the set screws in the tailwheel assembly apply loctite and re tighten ...

Страница 8: ...pull pull wire slot Remove covering from the elevator servo opening on the left side of the fuselage as shown Install the wings without ailerons NOTE the wing tube is packed in its travel holder inside one of the wing bags Use a tape measure to square the stab up with the wings and fuselage equalizing the measurements right to left as shown ...

Страница 9: ... or if you have to trim the opening to align the stab you can use thick CA glue as well NOTE Elevator servo options Your 57 Sukhoi can be built with single or dual elevator servos For duals use Hitec Hs 225MG or Hs 5245MG servos For a single you can use one Hs 225MG or Hs 5245MG or a full size servo Dual elevator servo installation Remove the covering over the elevator horn slots and use a generou...

Страница 10: ...f thin CA glue Install the elevator servos on each side as shown Assemble the elevator pushrods as shown Once you have assembled the ball links onto the pushrods and checked their lengths for perfect fit apply thin CA glue to the ball link to pushrod threaded joint Use the 2mm bolt with washer and nut to attach the pushrod to the servo arm and control horn ...

Страница 11: ...k the 2mm nuts holding the pushrods the nuts will vibrate loose and your plane WILL crash END of dual elevator servo install section Single Elevator servo installation Remove the covering from the inner hinge area of each elevator as shown There is a loose balsa filler piece under the covering Remove it as shown opening up the elevator joiner slot in the elevators ...

Страница 12: ...both the joiner and the elevator control horn into the left elevator as shown Insert the elevator into the stabilizer make sure it flexes easily 45 degrees up and down and glue the hinges with large drops of thin CA glue Apply a piece of masking tape to the left elevator half to hold it perfectly straight ...

Страница 13: ...lue dries If you are using a single HS 225MG or 5245MG then you can install it into the elevator servo slot If you are using a full size servo use the included template to mark the hole for trimming as shown Trim the template as necessary to clear the stab Use a sharp new hobby knife to trim the excess wood Use many light strokes with the knife don t press too hard into the wood Be patient Mount t...

Страница 14: ... CA on the joints of the carbon tube and ball links to lock the assembly together Use 2mm bolts washers and nuts to assemble the pushrod onto the servo arm and elevator horn as shown Be SURE to use medium or thick CA glue to lock the 2mm nuts in place IF you do not lock the 2mm nuts holding the pushrods the nuts will vibrate loose and your plane WILL crash ...

Страница 15: ...15 Route elevator servo wire or wires as shown to keep them away from the rudder pull pull wires Mount the rudder servo as shown ...

Страница 16: ...h medium or thick CA glue Install the rudder servo arm onto the servo Screw the pull cable ends into the ball joints several turns but not all the way this is your adjustment to re tighten slack pull pull cables Use masking tape to hold the rudder perfectly straight The rudder pull pull cables are assembled as shown in the above diagram ...

Страница 17: ...nd forward to the front of the fuselage Cross the wires once so they make an X inside the fuselage Again screw the pull cable ends into the ball joint several turns but not all the way leave a couple of threads of adjustment Assemble the front ends of the pull pull cables as shown double looping the wire through the crimp sleeve You want your pull pull cables to be snug with no sag but not too tig...

Страница 18: ...drop of thin CA to each sleeve and cut off the excess cable Electric Motor Install Using included 4mm allen head bolts attach the electric motor mount to the firewall as shown Note that the mount is marked with U for UP R for Right D for Down and L for Left Use threadlocker compound on these screws ...

Страница 19: ... the wires with zip ties Glow engine install Install notes The structure of the 57 Sukhoi is designed very light and requires reinforcement to withstand the vibration of a glow engine Also the structure needs to be sealed against oil and glow fuel Follow the following procedures exactly to install your glow engine and do not skip any steps ...

Страница 20: ...nstall the motor box top piece at this time because we will need access to the inside of the box for several more steps Place the varnished side of the wood to the outside Mix up a generous portion of 30 minute epoxy glue and use a disposable paintbrush to apply it all over the outside of the motor box ...

Страница 21: ...saddle areas This fully adheres the plywood overlay pieces to the motor box and seals the wood against oil and glow fuel Allow the epoxy to fully cure Mount the nylon engine mount beams as shown using 4mm allen head bolts and washers the beams are slotted to allow them to slide to fit narrower or wider engines Drill the mount for your particular engine ...

Страница 22: ...side down allows you to direct the muffler out the bottom of the cowl resulting a nicer appearance than having a muffler coming out the top of the cowl Your kit includes two throttle servo boxes one for the Hitec Hs 65 micro servo and one for a full size servo We recommend using the Hs 65 micro servo if possible to save weight and size ...

Страница 23: ...other ways to mount the throttle servo for different engines with carburetors in other locations There is also a cutout for the Hs 65 servo throttle servo in the fuselage interior for use with an upright mounted engine Assemble the stopper of the fuel tank by inserting the three metal tubing sections as shown ...

Страница 24: ... long vent tube up as shown Assemble the clunk as shown cut the clunk line so that the clunk cannot touch the back of the tank but is close 1 4 inch away from the back of the tank as shown Insert the stopper assembly into the tank with the vent tube toward the top and tighten the screw as shown ...

Страница 25: ...retor the vent line to muffler pressure and the third line as the fill line It should be plugged during flight We prefer the use a of a fuel dot on the fill line After the plumbing is complete install the top plywood piece onto the motor box with epoxy Trim the cowl as necessary to clear your muffler and cylinder head and also provide access for your glow plug igniter ...

Страница 26: ...se screws go into the small plywood squares on the front inside of the fuselage The following procedure is helpful to be sure the wood screws hit the plywood squares Install the canopy hatch if the canopy hatch is not installed when you fit the cowl it may be impossible to fit the canopy hatch after the cowl is installed Tape small pieces of paper over the plywood cowl mounting tabs as shown below...

Страница 27: ...th thin CA add washers to the screws or convert to a larger diameter screw The cowl includes a round plastic baffle piece that simulates the scale engine louvers on the Sukhoi cowl Only install this piece if your power system can operate with the reduced amount of cooling air If desired glue in place with medium or thick CA glue On the bottom of the wings locate the servo cutout and aileron contro...

Страница 28: ...ou did the elevator pushrods Install the aileron pushrods with 2mm bolts washers and nuts Be SURE to use medium or thick CA glue to lock the 2mm nuts in place Using a hobby knife or soldering iron remove the covering over the side window openings as shown Install the clear side windows with thick CA glue ...

Страница 29: ...o land gracefully When you experiment with CG location move the CG only small amounts 1 8 inch or so at a time A small change in CG can have a large affect on flight characteristics Control Throws Throws are given both in degrees and in millimeters measured at the end of the surface where the throw is greatest Ailerons Low Rate 24 degrees 35mm of throw 30 exponential High Rate 45 degrees 70mm 70 e...

Страница 30: ...30 3 D H O B B Y S H O P C OM Copyright 2008 3D Hobby Shop ...

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