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- Semi Scale Yak-54
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QuiQue's Aircraft Semi Scale Yak-54 Assembly Manual
Summary of Semi Scale Yak-54
Page 1
Semi scale yak-54, arf 102” generation ii assembly manual specifications wingspan: 102 in length including spinner: 91 in wing area: 1,975 sq in weight (rtf): 25-28 lb recommended engines: gas 100-110cc.
Page 2: Table of Contents
Table of contents quique’s aircraft company 3 covering colors 4 going over the covering 4 hardware supplied 5 additional required tools and adhesives 6 servo selection 8 using the manual 8 warning 8 warranty information 8 section 1-preparing fuselage 9 section 2-horizontal stab installation 10 secti...
Page 3: Quique’S Aircraft Company
Quique’s aircraft company 3410 saint paris pike springfield, oh 45504 phone: (937) 629-0339 fax: (937) 629-0335 email: qqaircraft@gmail.Com website: www.Qqaircraft.Com online-support: http://www.Rcuniverse.Com/forum/forumid_437/tt.Htm quique and i want to express our thanks to you for choosing our 1...
Page 4
Covering colors ultra-cote covering used on this 102” yak-54 can be purchased from horizon hobbies website. The codes are as follows: deep blue hanu873 true red hanu866 white hanu870 bright yellow hanu872 going over the covering before beginning the assembly of your yak-54, remove each part from its...
Page 5
Hardware supplied pull/pull rudder 30 hinges and wing pins/clips tail wheel aileron/elevator titanium rods & ball links fuel tank canopy hardware cowl hardware optional dubro hardware to complete your assembly: wheels and axles control horn system 5.
Page 6
Additional required tools and adhesives • covering/trim iron • xacto knife, #11 blade • pacer hinge glue (pt-55) • 5, 15 and 30-minute epoxy • petroleum jelly/lithium grease • acetone/alcohol swabs • felt-tip marker • pencil and marker • ruler • drill • drill bit 1/16”,1/8”, ¼”, 3/16”, #33, #25, #54...
Page 7
All other parts required to complete the aircraft • da100 or similar engine • mtw 75 canisters with 50mm drop down header or stock mufflers or similar set up for different engine • 1.5” aluminum stand offs • (8) jr 8611a or similar digital servo • (1) jr 4735 or similar analog servo • (4) 1.5” and (...
Page 8
Servo selection the servos used for the control surfaces of this yak-54 are as follows: ailerons (4), jr 8611a elevator (2), jr 8611a rudder (2), jr 8611a throttle, any standard analog servo make sure you use same or equivalent torque servos that are digital. Please do not risk your plane by using l...
Page 9
Section 1-preparing fuselage required tools and adhesive • xacto knife, #11 blade • trim iron step 1 use an xacto knife with a # 11 blade and cut away the film covering on both sides of the fuselage for the wing openings, figure 1. Some modelers may want to overlap the film covering down inside the ...
Page 10
Section 2-horizontal stab installation required tools and adhesive • rat-tail file • acetone • xacto knife, #11 blade • course sandpaper • thin ca • 5-minute epoxy • microballons step 1 use an xacto number 11 blade and cut open the film covering over the area at the rear and on both sides of the fus...
Page 11
Holes in the fuse sides slightly with a small rat tail file. Very important: after completing the model and flying it, in case you noticed any play in the stab, please glue the horizontal stab tube in place in the fuselage with epoxy and micro-balloons. 11.
Page 12
Section 3-elevator, rudder and aileron control horn installation required tools and adhesive • xacto knife, #11 blade • 5-10 minute epoxy • alcohol swab/alcohol and paper towel the optional du-bro package that we offer will have everything you need to complete the following steps, otherwise please u...
Page 13
Use the dubro heavy duty dual pull- pull system cat. No. 882. Insert the 8-32 threaded rod for the rudder control horn. Step 3 take the screw out and apply a thin layer of epoxy/alcohol inside the hole to strengthen the inside walls. Step 4 proceed with final installation of dubro cat. No 882. See f...
Page 14
Section 4-preparation and installation of hinges required tools and adhesive • xacto knife, #11 blade • lithium grease/petroleum jelly • toothpicks • pacer hinge glue (pt-55) the hinge slots are already cut in the balsa at all hinge locations on both the fixed surfaces and the moveable surfaces. How...
Page 15
Step 1 use a # 11 blade to open the flat hinge slot. The hinge slots will have to have a larger opening cut out just on either side, top and bottom, of the pivot point on both surfaces. So you will need to open the area in the fixed and moveable surfaces of the ailerons, elevators and rudder. Step 2...
Page 16
Be very careful not to get any grease etc. On the flat part of the hinges. Also remember that you always glue the hinges in to the fixed surfaces first, let the glue harden before you then glue in the control surfaces. Remember to check for the correct hinge gaps for rudder, elevators and ailerons. ...
Page 17
Section 5-wing anti-rotation pins and servo installation required tools and adhesive • 5-15 minute epoxy • ruler • coarse sandpaper • acetone/alcohol swab • thin c/a • micro balloons • (2) 24” servo extensions • (2) 1.5” aluminum servo arms • long rod such as 48” dubro rod. Step 1 prepare the alumin...
Page 18
In the end of the pins to make sure the front and rear pins are vertical as this is very important step 4. Let the epoxy harden. Stand the wing on its wing tip and run some thin c/a around the root rib. Wipe away any excess. Do this several times which will help to seal the pin to the hole in the ro...
Page 19
Step 8 plug a 24" servo extension onto the outboard servo. Either tie the servo leads together, using a commercially available connector, or use unwaxed dental floss to secure the extensions to prevent them from coming loose during flight. Step 9 to run the servo extensions, use a long rod and make ...
Page 20
Figure 18 step 13 you need to use matchboxes for best results. Make sure that servos are not fighting each other throughout the travel. Follow matchbox instructions for proper set up. 20
Page 21
Section 6-tail wheel installation required tools and adhesive • drill • thread lock • course sandpaper • 5-minute epoxy step 1 insert the three screws to attach the tail wheel bracket. Step 2 attach the small piano wire control steering arm and be sure to use thread lock on all the screws. Make a li...
Page 22
Section 7-elevator servo installation required tools and adhesive • (2) 48” servo extension • pin vise • 1/16”drill bit • 1 1/4” aluminum servo arms step 1 install the servo in its place. Step 2 pull the servo wire through the rib access holes closest to the tube sleeve. Step 3 install a 1-1/4” alum...
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Figure 22 figure 23 figure 24 23.
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Section 8-rudder servo and pull/pull installation required tools and adhesive • z-42 thread locker (pacer) • thin c/a • 0.05 allen wrench • (4) full-threaded servo screws • wire cutter you will need a total of 500 inch ounces of torque on the rudder. The rudder servo tray has three servo openings. E...
Page 25
Figure 26 step 4 attach the double cf arm to your servo arm and mark the holes you want to use to couple the servo to your second servo. Step 5 drill the holes and adjust your pull- pull system with the first servo that has the double cf arm. Step 6 attach the second servo to the first servo by usin...
Page 26
Section 9-engine mounting and throttle control installation required tools and adhesive • drill • 1/8”, ¼” drill bits • sullivan locking sleeve ball joints s560 • 2-56 rod da100 and 3w 106 engine mounting templates are the same. Stand off size: da100 with stock mufflers: 1.5” da100 with canisters: 1...
Page 27
Step 5 use 1.5” stand offs for both canister or stock muffler installation. Step 6 you can make those stand offs from 1” hardwood dowel that can be bought from a local store like homedepot. Cut them to the desired length depending on your installation. Soak them with ca and let them dry. Let me emph...
Page 28
Figure 35 figure 36 figure 37 da100 engine installation with mtw canisters header drop down should be 50mm and canisters are mtw 75, front exit that can be purchased from desert aircraft. Step 1 remove the covering from the bottom of the fuselage and leave 1/4” ultra-coat, so you can iron the coveri...
Page 29
Figure 39 step 3 modify the canister support to fit it in the tunnel. Da provides a support and silicone tubing with the mtw header/canister system but it is too tall and not wide enough but it can be modified to fit as shown in figure 40. Figure 40 step 4 insert the support into the tunnel. Do not ...
Page 30
Figure 43 once you are satisfied with the fit of the canister support and the clearance of the canisters, glue the mount in place near or against the former that is approximately 5” behind the landing gear using epoxy between the sides of the support and the fuselage. You may also add triangle stock...
Page 31
Is approximately 5 inches behind the back of the landing gear. Glue in the ply canister mount with epoxy on both sides to the sides of the fuse former. After the epoxy hardens, add some thick c/a along the bottom of the canister mounting plate, as viewed from the opening in the bottom of the fuse an...
Page 32
Figure 50 figure 51 32.
Page 33
Section 10-landing gear installation required tools and adhesive • drill, 3/16”(4.5mm) and 5/16” drill bit • axles dubro cat no.249 • 4” threaded light wheel cat no. 400tl • dremel • dremel grinder and cutting wheel • felt tip pen • (2) 4-40 socket cap screw landing gear comes drilled and ready to i...
Page 34
Step 3 using a 3/16” drill bit, drill a hole into the wheel pants. Step 4 with dremel and grinding tool, make a larger pocket around the axle hole to fit the axle hex-nut onto the wheel pants. Figure 55 figure 56 figure 57 step 5 mount the gear so it is swept forward and adjust the wheel pants to th...
Page 35
Section 11-fuel tank installation required tools and adhesive • 15-30 minute epoxy • velcro or tie wraps 18” long • ¼” thick lite-ply or plywood • sandpaper • sticky back velcro step 1 assemble the fuel tank hardware as shown. See figure below. Be sure the vent tube with the short piece of fuel tubi...
Page 36
Step 5 use industrial strength sticky velcro to the top of the tank and plate. This will prevent the tank from moving forward or backward. Strap the tank using tie wraps or velcro. Figure 62 figure 63 for those who want to use a smoke system, there are two ways to install your smoke tank. 1. You can...
Page 37
Section 12-engine cowling required tools and adhesive • 15-30 minute epoxy • pencil/marker • drill & 1/16” drill bit • masking tape step 1 four screws are used to attach the cowl on the four wooden blocks attached to the fuselage. There is an additional attachment on each side of the cowling on two ...
Page 38
Place it along the canopy hatch and extend the straight edge forward on the cowl beyond the standoff. Put masking tape and mark that horz. Line as shown in below picture. Figure 66 to measure the stand-off location, remove the cowl and put the straight edge back on the canopy hatch line and measure ...
Page 39
Section 13-canopy installation required tools and adhesive • xacto knife, #11 blade • drill • thin/medium c/a • 5-minute epoxy step 1 5-min epoxy the pin in place. Figure 68 step 2 mark the tabs from the holes that are in the fuselage and drill for accepting the blind nuts. Step 3 now after proper m...
Page 40
Section 14-radio equipment you are now in the final stages in completing the assembly of your yak-54. This is how quique has been mounting his receiver with great success. 1. Apply some beads of medium c/a. 2. Attach a piece of foam the size of the bottom of the receiver to the base. 3. Cover the bo...
Page 41
3. Ca thick foam to the masking tape. Figure 73 4. Attach a sticky back industrial velcro to the foam. I use couple of drops of ca to make sure that velcro will not pull free. Figure 74 5. Use sticky back velcro with ca on the plate. Figure 75 6. Mount the battery on the plate and wrap it with velcr...
Page 42
Figure 78 2. Remove enough foam to fit the switch and pass the wires. Do not remove more foam than necessary. Figure 79 3. Apply some thinned epoxy with alcohol to the foam and frame that you opened up. After it’s cured install your switch. You can apply some foam ca to the screws to ensure they won...
Page 43
Receiver, regulator and rudder matchbox installation receiver, regulator and rudder match box can be mounted on the rudder tray. Figure 83 matchbox is mounted in front of the receiver and tray. Figure 84 regulator has been mounted to the bottom of the rudder tray. Figure 85 receiver antenna guide th...
Page 44
Balancing the model perhaps one of the most important things that you need to check before you fly your plane is your model c.G. Correctly balancing an aerobatic model is critical to its performance and flight characteristics. An unbalanced model can be very hard to control. Please make sure that yo...
Page 45
Control throws below picture shows you how to measure. Exact number of low rate or high rate is not depicted! Aileron (as shown in figure 88) low rate (expo 65%) high rate (expo 70%) 3 3/8”up 3 3/4” up 3 3/8” down 3 3/4” down figure 88 45.
Page 46
Elevator (as shown in figure 89) low rate (expo 45%) high rate (expo 80%) 7/8” up 3 3/4”-3 7/8” up 7/8” down 3 3/4”-3 7/8” down figure 89 46.
Page 47
Rudder (as shown in figure 90) low rate (expo 35%) high rate (expo 45%) 2 5/8” right 5” right 2 5/8” left 5” left figure 90 47.
Page 48
Preflight at the field range test your radio make sure you range check your radio before you attempt to fly your plane. Range check your radio without engine running and your antenna fully collapsed in case of jr 10x remove the antenna and range check with no antenna installed. Walk away until you h...
Page 49
49 in the print dialog box, set scaling and fit to page options to none. All dimensions are in mm. Double check the measurements after printing. Snap the template in between the tri-stocks and flush with the top of the engine box. Bottom of the template won't be flush with the bottom of the engine b...
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