VQ Model Yak-52 User guide

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45 Class

2-cycle engine

70 Class

4-cycle engine

Or Electric equivalent

YAKOVLEV

YAK-52

INSTRUCTION MANUAL / Montageanleitung

All balsa, plywood construction and almost ready to fly

SPECIFICATIONS

Wingspan 60.6 in. Length 43.9 in. Electric Motor 870 Watt (PULSAR 60) Glow Engine .46 2-T / .70 4-T Radio 5 Channel / 5 Servos

TECHNISCHE DATEN

Spannweiter 1540mm Lange 1117mm Elektroantrieb 870 Watt (PULSAR 60) Verbrennerantrieb 7.5cc 2-T / 11cc 4-T Fernsteuerung 5 Kanal / 5 Servos

WARNING! This radio controlled model is NOT a toy. If modified or flown carelessly it could go out of controll and cause serious human injury or property damage. Before flying your airplane, ensure the air field is spacious enough. Always fly it outdoors in safe areas and seek professional advice if you are unexperienced.

ACHTUNG! Dieses ferngesteuerte Modell ist KEIN Spielzeug! Es ist für fortgeschrittene Modellflugpiloten bestimmt, die ausreichende Erfahrung im Umgang mit derartigen Modellen besitzen Bei unsachgemäßer Verwendung kann hoher Personen- und/oder Sachschaden entstehen. Fragen Sie in einem Modellbauverein in Ihrer Nähe um professionelle Unterstützung, wenn Sie Hilfe im Bau und Betrieb benötigen. Der Zusammenbau dieses Modells ist durch die vielen Abbildungen selbsterklärend und ist für fortgeschrittene, erfahrene Modellbauer bestimmt.

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REQUIRED FOR OPERATION (Purchase separately)

BENOTIGTE KOMPONENTEN FUR DEN ABFLUG (Nicht enthalten)

10.5x6 for .40 - 2 cycle engine 11x6 for .46 - 2 cycle engine 12x6 for .60 - 4 cycle engine 12x7 for .70 - 4 cycle engine 13x6 for Quantum 4120/05

Retract servo x1

Phoenix-60 Brushless Motor Control

Extension for aileron servo, retract servo.

.46 ~ .50 - 2 cycle

.60 ~.70 - 4 cycle

Minimum 5 channel radio for airplane with 5 servos .Motor control x1 .Aileron x2 .Elevator x1 .Rudder x1

GLUE

(Purchase separately)

SILICON

Silicon sealer

TOLLS REQUIRED

Hobby knife

Silicone tube

Cyanoacrylate Glue

(Purchase separately)

Li-Po Battery, 14.8V, 4000mAH, 80A

Phillip screw driver

Needle nose Pliers

Scissors

Sander

.........................................................

Masking tape - Straight Edged Ruler - Pen or pencil - Rubbing alcohol - Drill and Assorted Drill Bits

If exposed to direct sunlight and/or heat, wrinkels can appear. Storing the model in a cool place will let the wrinkles disappear. Otherwise, remove wrinkles in covering film with a hair dryer, starting with low temperature. You can fix the corners by using a hot iron.

Quantum 4120/05 Brushless Motor or equivalent.

EPOXY A

EPOXY B

Retract landing gear

Linkage Stopper x2 (for retract servo)

Epoxy Glue ( 5 minute type)

Epoxy Glue (30 minute type)

Hex Wrench

Awl

Wire Cutters

VQAR04

Bei Sonneneinstrahlung und/oder Wärme kann die Folie erschlaffen bzw. Falten entstehen. Verwenden Sie ein Warumluftgebläse (Haartrockner) um evtl. Falten aus der Folie zu bekommen. Die Kanten können Sie mit einem Bügeleisen behandeln. Nicht zuviel Hitze anwenden !

Symbols used throughout this instruction manual, comprise:

Drill holes using the stated

1.5mm

size of drill (in this case 1.5 mm Ø)

Use epoxy glue

Take particular care here

Apply cyano glue

Hatched-in areas: remove covering film carefully

Assemble left and right

L/R

sides the same way.

Check during assembly that these

parts move freely, without binding

Not included. These parts must be

purchased separately

Read through the manual before you begin, so you will have an overall idea of what to do.

CONVERSION TABLE

1.0mm = 3/64”

1.5mm = 1/16”

2.0mm = 5/64”

2.5mm = 3/32”

3.0mm = 1/8”

4.0mm = 5/32”

5.0mm = 13/64”

6.0mm = 15/64”

10mm = 13/32” 12mm = 15/32” 15mm = 19/32” 20mm = 51/64”

25mm = 1” 30mm = 1-3/16” 45mm = 1-51/64”

Low setting

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1- Retract landing gear / Fahwerk

Trial fit the push rod into the wing. Join the pushrod to the retract gear arm and trial fit the retract into the wing.

After checking that the retract works smoothly, fix the retract on the wing with 3x12mm screws

Bottom view Ansicht von unten

3x12mm screw 3x12mm schraube

L/R

Steel clevis

3x12mm screw

................8

Retract pushrod

Fahrwerkanlenkgestange

.........2

2- Aileron servo / Querruder servo

Bottom view /

40mm

15mm

Ansicht von unten

Aileron extension cord

Servoverlangerungskabel

Aileron servo

Querruder servo

2mm

Plastic control horn

....................2

2x20mm screw

...............4

Included with the radio set

2mm

3- Joining the wing / Flache

Use epoxy glue to bury the opening

Nehmen Sie Epoxykleber, um die Tragflachen fest miteinander zu Verbinden und streifen Sie den herausquellenden Kleber nach dem Verbinden mit einem fusselfreien Tuch SOFORT ab!

1- Using a pencil, mark the center of the brace. 2- Trial fit the wing joiner into one of the wing panels. It should insert smoothly up to the center line marked above. 3- Slide the other wing half onto the dihedral brace until the wing panel meet. If the fit is over tight, it may be necessary to lightly sand the dihedral brace. 4- Check for the correct dihedral angle. 5- Mix approximately 30 minute epoxy and apply a generous amount of epoxy into the wing joiner cavity of one wing half. 6- Coat one half of the dihedral brace with epoxy up to the center line. Install the epoxy-coated side of the dihedral brace into the wing joiner cavity up to the center line, marking sure that the “V” of the dihedral brace is positioned correctly 7- Do the same way with the other wing half. 8- Carefully slide the wing halves together, ensuring that they are accurately aligned. Firmly press the two halves together, allowing the excess epoxy to run out. Clear off the excess epoxy.

WARNING: Please do not clean off the excess epoxy on the wing with strong solvent or pure alcohol, only use kerosene to keep the colour of your model not fade.

Secure one end of the aileron extension cord with adhesive tape

Wing joiner

Tragflachenverbinde

Center line

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4- Servo mount / Servohalterung

Retract servo mount (plywood A,B,C)

Einziehfahrwerk servohalterung

Schneiden Sie etwas Folie weg

Cut away only the covering

FWU2

FWU1

CENTER WING SECTION

5- Retract servo / Einziehfahrwerk servo

Retract servo

Einbau des Servos fur das Einziehfahrwerk

FWU2

BOTTOM

Install the retract servo onto the retract servo mount and secure it in place with four screw (included with radio set).

FWU1

6- Linkages / Ruderanlenkung

8-5/16”(~210mm)

RETRACT PUSHROD (SIDE VIEW)

Fahrwerkanlenkgestänge

1”(25mm)

(TOP VIEW)

Instruction how to build in the retracting landing gear (This Gearis OPTIONAL )

Einbauhilfe bei Anbringen eines

2” (~50mm)

Einziehfahrwerks (Optional bestellbar; nicht im Baukasten enthalten!)

Einbau des Servos fur das Einziehfahrwerk

CENTER WING SECTION

BOTTOM

19/64” (7.5mm)

/ Retract servo

With the retract and retract servo in the retracted position, mark the position where each of the pushrod will attach to the servo arm, a small piece of masking tape works well for this. Cut off the excess length each rod.

Link the servo and retract gear arm with push rod. Be sure to adjust the stroke so that the landing gear locks in both up and down position.

EINGEFAHREN

AUSGEFAHREN

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7- Fixed gear / Landegestange

Landegestänge

Main gear (left)

Gear mount (hard wood)

Landegestänge

Main gear (right)

Ply gear mount plate

Square plastic

Plastic strap

Kunststoffstreifen

..............16

3x10mm screw

8- Fixed gear / Landegestange

Befestigungsklötze für Landegestänge

Gear mount (hard wood)

Square plastic

3x10mm

Kunststoffstreifen

Plastic strap

Ply gear mount plate

Main landing gear

Landegestänge

ABS wheel well cover

ABS gear cover

4mm stellring/collar

3x10mm

screw

3x10mm schraube/screw

..........8

2x6mm schraube/screw

..........4

4mm stellring/collar

..........2

Bottom view /

Ansicht von unten

1.5mm

ABS gear strap

Gear mount (hard wood)

9- Electric retract landing gear / Einziehfahrwerk

EXTENDED POSITION

ABS gear cover

2x6mm screw

RETRACTED POSITION

RECEIVER

ELECTRIC RETRACT LANDING GEAR

GEAR

OFF

2mm

Bottom view /Ansicht von unten

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10- Horizontal stabilizer / Hohenruder

1-Trial fit the horizontal stabilizer in place . Check the alignment of the horizontal stabilizer. When you are satisfied with the alignment, use a pencil to trace around the top and bottom of the stabilizer where it meets the fuselage. 2-Remove the horizontal stabilizer from the fuselage. Using the sharp hobby knife, carefully cut away the covering inside the lines which were marked above. 3-Spread epoxy (30 minute) onto the top and bottom of the horizontal stabilizer along the area where the covering was removed and to the fuselage where the horizontal stabilizer mounts.

4-Install the horizontal stabilizer into the fuselage and adust the alignment as described in steep 1 5-Wipe off any excess epoxy using a paper towel and kerosene, do not use strong solvent or pure alcohol to keep the colour of your model not fade. Allow the epoxy to cure before proceeding to next step.

Vergewissern Sie sich, sauber geklebt zu haben. Andernfalls konnen Probleme mit der Flugeigenschaft auftreten!

Cut away only the covering both side

90O90

A’

Apply the epoxy

both side

A = A’ B = B’

Cut away only the covering both side *

B’

* WARNING: When removing any covering from the airframe, please ensure that you secure the cut edge with CA or similar cement. This will ensure the covering remain tight.

11- Vertical stabilizer / Hohenleitwer

1-Trial fit the vertical stabilizer in place . Check the alignment of the vertical stabilizer. When you are satisfied with the alignment, use a pencil to trace around the right and left of the stabilizer where it meets the fuselage. 2-Remove the vertical stabilizer from the fuselage. Using the sharp hobby knife, carefully cut away the covering inside the lines which were marked above. 3-Spread epoxy (30 minute) onto the right and left and bottom of the vertical stabilizer along the area where the covering was removed and to the fuselage where the vertical stabilizer mounts.

4-Install the vertical stabilizer into the fuselage and adust the alignment as described in steep. 1

Control horn

................1

2x12mm screw

..........2

5/64”

2.mm

Apply the epoxy

both side

Cut away only the covering both side*

Stab.

3/8” (10mm)

Elev.

B = B’ C = C’

Securely glue together. If coming off during flight, you lose control of your air plane!

* WARNING: When removing any covering from the airframe, please ensure that you secure the cut edge with CA or similar cement. This will ensure the covering remain tight.

C C’

B’

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12- Elevator / Hohenruder

Apply a thin layer of machine oil or petroleum jelly to only the pivot point of the hinges on the elevator, then push the elevator and its hinges into the hinge slots in the trailing edge of the horizontal stabilizer. When satisfied with the and alignment, hinge the elevator to the horizontal stabilizer using 5 minute epoxy. Make sure to apply a thin layer of epoxy to the top and bottom of both hinges and to inside the hinge slots. Repeat the previous procedures to hinge the second elevator to the other side of the horizontal stabilizer.

Stab.

5/64”

2.mm

3/8” (10mm)

Elev.

Apply the epoxy both side

Securely glue together. If coming off during flight, you lose control of your air plane!

Vergewissern Sie sich, sauber geklebt zu haben. Andernfalls konnen Probleme mit der Flugeigenschaft auftreten!

13- Tail gear / Heckspornrad

1/8x15/32” (3x12mm) screw

...........2

Tail gear horn

...............1

5/64”(2mm) collar

...............1

Control horn

................2

2x12mm screw

..........4

Bottom view /Ansicht von unten

5/64”(2mm) collar

3x12mm screw

Petroleum jelly

STABILIZER

Hinge

Tail gear mount

Tail gear horn

1-Place the tail gear mount on the bottom of the fuselage as show, mark the mounting hole positions with a pencil. 2-Remove the tail gear mount from the fuselage, Drill the two mounting holes as marked.

3-Cut a 5/64”(2mm) wide slot which is 5/16” (8mm) length and 5/16”(8mm) depth on the bottom of the rudder as shown.

4-Trial fit the tail gear horn into the slot. Do not glue at this time. 5-Slide the tail gear into the tail gear horn. Secure the tail gear mount in place using the two 3x12mm screw. 6-Secure the tail gear horn in place using CA glue as shown.

1/16

1.5mm

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14- Fuel tank / Kraftstofftank

Magnetic canopy

Magnetic piece.

INCASE OF BRUSHLESS MOTOR

INCASE OF GAS ENGINE

To engine

Aluminum stopper

To muffler

Filler tube

Rubber stopper

Aluminum cap

After confirming the direction . Insert and tighten the screw.

3x35 mm screw

5/32”(4mm)

Push the fuel tank forward until there are no gaps between the tank and firewall.

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15- Electric Motor / Elektromotor

- Using a plywood motor mounting plate as a template, mark the fire wall where the four holes are to be drilled (1).

- Remove the plywood motor mounting plate and drill a 13/64”(5mm) hole through the fire-wall at each of the four marks marked (2).

- Using a aluminum motor mounting plate as a template, mark the plywood motor mounting plate where the four holes are to be drilled (3).

- Remove the aluminum motor mounting plate and drill a 1/8”(3mm) hole through the plywood at each of the four marks marked (4).

FRONT-VIEW

Aluminum motor mounting plate

Plywood motor mounting plate (2pcs)

13/64”

! Align the mark on the plywood motor mount with the mark on the fuselage.

5mm

-Push the four 5x70mm bolts through the fire-wall as shown (5).

- Reposition the plywood motor mounting plate (2pcs) and secure it in place with eight 5mm nuts and washers (6). Note: B=B’(Side-view) and A=A’(Top-view)

-Attach the aluminum motor mounting plate on to the motor and secure it in place with four screws ( included with motor set) (7).

-Attach the motor on to the plywood motor mounting plate and secure it in place with four 3x15mm (1/8x19/32”) screws(8).

1/8”

! Align the mark on the plywood motor mount with the center lines on aluminum motor mount.

3mm

B=B’

Firewall

B’

SIDE-VIEW

118 - 122mm

(4.7”)

7 - 8

A=A’

! Engine thrust on balk head is already adjust at factory

A’

TOP-VIEW

5x70mm.......4

5mm nut.......12

5mm washer...16

3mm screw/nut...4

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16- Engine mount / Motortrager

! Align the mark on both mounts with the center mark on the fire wall

! Engine thrust on balk head is already adjust at factory

B’

FRONT-VIEW

B=B’

13/64”

5mm

4x25mm screw

......4

17- Engine (two stroke) / 2T Motor

118 - 122mm

(4.7”)

Blind-nut

............4

! Align the engine center with fire wall marked line

B’

4mm washer

.................4

6.5

3x25mm screw

...4

Nut

.............4

With hang silencer

18- Engine (four stroke) / 4T Motor

118 - 122mm

(4.7”)

3.mm

1/8

With side silencer

Determine the angle for the engine mounts so the muffler will not contact the fuselage

1/8

3mm

! Engine thrust on balk head is already adjust at factory

5” ~ 5-1/32”

(127~128mm)

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19- Cowling installation Motorhaube

Insert the cowl on to the fuselage so the distance from the fire-wall to the front of the cowl is 116 - 118mm.

Using a pencil or felt tipped pen trace around the cowl where it meet the fuselage.

Position the engine on to the engine mounts so the distance from the prop hub to the fire wall is 120mm.

120mm

Pencil line

Adhesive tape

116 - 118mm

6.5

2mm

Ruler

Again, insert the cowl on to the fuselage so the rear edge of the cowl meet the pencil line and secure it in place with the adhesive tape. Drill four 2mm holes on the cowl as shown.

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20- Air scoop / Olkuhlerattrappe

Note: Only one pilot in cockpit The second pilot must purchase separately. (VQAP09)

21- Servo installation

NOTE: Place of the servos may be change depend of engine (Four-stoke or two-stroke engine)

22- Linkages / Ruderanlenkung

ABS air-scoop

Receiver area

Bottom view /Ansicht von unten

Elevator servo

Hohenruderservo

Rudder servo

Seitenruderservo

Throttle servo

Drosselservo

Connector Gestangeanschluss

............1

Connector

Gestangeanschluss

............3

Elevator pushrod

Rudergestange

3mm set Screw

2 mm

Tail wheel pushrod

Rudder pushrod

Elevator pushrod

Rudergestange

Elevator pushrod

Rudergestange

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23- Decor / Aufkleber

Sticker

CHAMPION

FUELS

A E R O S P A C E

LYCOMING

TEXTRON

Note: Cut out the stickers and apply them in the proper area. Do not peel the backing paper off all at once. Peel off one corner of the backing and cut off with scissors. Arrange sticker on model and when satisfied adhere the corner without backing. Carefully peel back the rest of the backing while at the same time adhering the rest of the sticker. Try not to make air bubbles, if there are some, carefully puncture sticker (center of bubble) but not model surface with the tip of the knife or sharp pin and squeeze out the air. At curves stretch sticker and apply a little heat so that no ceases occur. Cut off the excess that is produced.

WARNING:

Please do not clean your model with pure alcohol or strong solvent, only use liquid soap with water or use glass cleaner to clean on surface of your model to keep the colour not fade.

All details are subject to change without notice !

Technische Anderungen und Irrtumer vorbehalten !

N621TW

Sticker

24- Balance / Schwerpunkt

DO NOT try to fly an out-of-balance model !

4-1/4”(107 mm)

(A + or - 5mm is fine)

Note: Adjust the location of the battery pack to achieve this C.G location.

Wing center section

25- Control surface / Ruderausschlage

1/4” (6mm)

AILERON / QUERRUDER

1-3/16”(30) mm

RUDDER / SEITENRUDER

IMPORTANT: Flying your model at these throws will provide you with the greatest chance for successful first flights. If, after you have become accustomed to the way the Yak flies, you would like to change the throws to suit your taste that is fine. However, too much control throw could make the model difficult to control, so remember, “more is not always better”.

ELEVATOR / HOHENRUDER

25/64”(10mm)