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- Semi Scale Yak-54
- Assembly Manual
QuiQue's Aircraft Semi Scale Yak-54 Assembly Manual
Summary of Semi Scale Yak-54
Page 1
Semi scale yak-54, arf 101” assembly manual specifications wingspan: 101 in length including spinner: 91 in wing area: 1,960 sq in weight (rtf): 24.5-25.5 lb recommended engines: gas 80-85cc.
Page 2: 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 3
Covering colors ultra-cote covering used on this 101” yak-54 can be purchased from horizon hobbies website. The codes are as follows: midnight blue hanu885 silver hanu881 white hanu870 dark yellow hanu889 going over the covering before beginning the assembly of your yak-54, remove each part from...
Page 4: Hardware Supplied
Hardware supplied pull/pull rudder wing pins/clips aileron push rods tail wheel elevator titanium rods & ball links pins fuel tank canopy hardware cowl hardware optional dubro hardware to complete your assembly: wheels and axles control horn system.
Page 5
Additional required tools and adhesives • covering/trim iron • xacto knife, #11 blade • pacer hinge glue (pt-55) • 5,30-minute epoxy • lithium grease • acetone/alcohol swabs • pencil and marker • ruler • drill • drill bit 1/16”,1/8”, ¼”, 3/16”, #33, #25, #54 • wire cutter • course and fine sandpaper...
Page 6
All other parts required to complete the aircraft • da-85 or similar engine • (7) jr 8711 or similar digital servo • (1) jr 4721 or similar analog servo • (4) 1.5” and (2) 1.25” single side aluminum servo arms and (1) 3” double side aluminum servo arm for all control surfaces. (1) plastic servo arm ...
Page 7
Servo selection the servos used for the control surfaces of this yak-54 are as follows: ailerons (4), jr 8711 elevator (2), jr 8711 rudder (1), jr 8711 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 low ...
Page 8: Preparing The Fuselage
Preparing the fuselage required tools and adhesive • xacto knife, #11 blade • sealing iron • fine line marker • medium ca preparing fuselage in this step, we are going to remove covering from the fuselage which will allow access for different components in coming steps. 1. Remove covering from fusel...
Page 9
Preparation and installation of hinges figure 2 figure 1 required tools and adhesive • xacto knife, #11 blade • sealing iron • paper towels • pacer hinge glue (pt-55) prepare hinge slots hinge slots are installed in your model. The hinges have been placed into the slots from the factory, they have n...
Page 10
Wing and stab anti-rotation pin installation required tools fig 1 • epoxy and thin ca • sand paper • acetone or alcohol • micro-balloons 1. Prepare the c/f anti-rotation pins by using coarse sandpaper and rough up the end of the pin where it will be inserted in the second rib in the h.Stab. Now clea...
Page 11
Fig 5 5. After the c/a has hardened, make a fillet of 15 minute epoxy and micro balloons and apply on the inside of the root rib. I used a small length of 3/16” wooden dowel to apply the epoxy-micro balloon mix. Fig 4 and 5 6. You will find some ¼” i.D. O-rings and washers with the wing anti-rotatio...
Page 12: Aileron Horn Installation
Aileron horn installation required tools and adhesive • xacto knife, #11 blade • 5-10 minute epoxy • alcohol swab/alcohol and paper towel • sealing iron • ruler • blue loctite • pliers the optional du-bro package that we offer will have everything you need to complete the following steps, otherwise ...
Page 13: Wing Servo Installation
Wing servo installation 1. Now install the aileron servos so fig 4 that output shaft is towards the leading edge of the wing. 2. 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 th...
Page 14: Elevator Horn Installation
Elevator horn installation required tools and adhesive fig 1 • xacto knife, #11 blade • 5-10 minute epoxy • alcohol swab/alcohol and paper towel • sealing iron • ruler • blue loctite • pliers the optional du-bro package that we offer will have everything you need to complete the following steps, oth...
Page 15: Elevator Servo Installation
Elevator servo installation we recommend using one jr 8711 servo for each elevator half along with the 1.25” aluminum servo arms and du-bro control horn hardware. 1. Install servo using four screws supplied, exit servo lead from root end of fig 4 stabilizer. 2. Using blue loctite, install one 1.25” ...
Page 16
Rudder horn, servo and pull/pull installation required tools fig 1 • xacto knife, #11 blade • sealing iron • ruler • needle nose pliers • epoxy • sand paper the optional du-bro package that we offer will have everything you need to complete the following steps, otherwise please use your alternative....
Page 17: Landing Gear Installation
Landing gear installation required tools fig 1 • drill, 3/16”(4.5mm), 5/16”, 1/8” drill bit • axles dubro cat no.249 • 4” threaded light wheel cat no. 400tl • dremel with small sanding drum landing gear installation 1. Landing gear comes drilled and ready to install but you still need to drill the h...
Page 18: Install Tail Wheel Gear
Install tail wheel gear 1. Gear comes assembled. Remove all set screws and add blue loctite to each set screws and re-assemble. Mount tail wheel gear to fuselage using the three bolts provided in your kit. 2. Drill bottom of rudder to accept ball link. Sand ball link shank then glue into rudder. Fit...
Page 19: Engine Installation
Engine installation required tools fig 1 • 4- ¼”x1” bolts • 4- ¼” blind nuts • 1/16, 5/16 drill bits and drill • dremel and sanding drum da-85 engine installation 1. Using 5/16 drill bit, drill four engine mount holes located on firewall. You can pre drill holes using a 1/16” bit, this will guide th...
Page 20
Tuned pipe and header installation required tools fig 1 • du-bro brass nipple #241 • wire cutters • red silicone • pliers • dremel with cut off wheel tuned pipe and header installation 1. If you do not plan to use smoke tube, you will need to remove some of this tubing before pipe can fit into fusel...
Page 21: Engine Cowling Installation
Engine cowling installation • masking tape lower engine box gussets • fine point marker • straight edge ruler • 1/8” , 3/16” drill bits and drill • ca • epoxy • dremel and sanding drum • small c clamp first we will assemble the laser cut plywood parts that make up the right and left side cowling mou...
Page 22
Fig 6 6. Measure the center of each tab and drill. Install blind nuts using a c clamp to seat blind nuts in place. Fig 6 7. Locate clear plastic sheets that came in your model. These sheets will be used to help transfer blind nut locations to the out side of cowling. Place one clear on the left & ri...
Page 23: Canopy Installation
Canopy installation • c clamp • clear silicone • clear packing tape fig 1 • white lithium grease • epoxy • drill and bits 1. Set canopy onto fuselage, drill through fuselage into each canopy tab. Fig 1 2. Remove canopy re-drill each hole to the proper size of the blind nut. Install blind nuts using ...
Page 24: Fuel Tank Installation
Fuel tank installation • 4’ tygon fuel line fig 1 • floral type wire or clamps • velcro wrap • 5/16 drill bit • fuel line tee • double sided tape • 3/32” balsa sheet • ca assemble fuel tank according to manufactures directions. 1. Fuel tank will be mounted up under the fuel tank bracket already inst...
Page 25: Radio Gear Installation
Radio gear installation required tools fig 1 • velcro tape • ½” foam rubber • radio installation 1. After you have plugged servos into rx, secure rx to 1/8” plywood tray using velcro straps. Place foam between rx and plywood for added protection. Fig 1 2. Install switch harness. There are four switc...
Page 26: Balancing Model
Balancing 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 you ca...
Page 27: Control Throws
Control throws below picture shows you how to measure from center of wing trailing edge to center of aileron trailing edge. Exact number of low rate or high rate is not depicted! Aileron throws low rate (expo 65%) high rate (expo 70%) 3 3/8”up 3 3/4” up 3 3/8” down 3 3/4” down fig 1.
Page 28
Elevator throws 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 fig 2.
Page 29
Rudder throws low rate (expo 35%) high rate (expo 45%) 2 5/8” right 5” right 2 5/8” left 5” left fig 3.
Page 30: Preflight At The Field
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...