Lindinger 1730mm ARF Cessna 172 Sky Hawk Instruction Manual

1730mm ARF Cessna 172 Sky Hawk

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Product Information

Model: CESSNA 172

Wingspan: 1730mm

Construction: All balsa, plywood construction
and almost ready to fly

Specifications

• Wingspan: 1730mm
• Length (installed motor): 1190mm
• Electric Motor: 800Watt
• Glow Engine: .55 2-T / .72 4-T RTF
• Weight: 3100 – 3450g (will vary with equipment use)
• Radio: 6 Channel / 6-7 Servos
• Function: Ailerons-Elevator-Rudder-Throttle Flaps

Required for Operation (Purchase Separately)

• Aileron: Yx1pcs
• Aileron: 50cmx2 pcs
• Flap: 30cmx2 pcs
• Rx battery pack: 20cmx1 pcs

Tools Required (Purchase Separately)

• Hobby knife
• Phillip screwdriver

Safety Notes Before Assembling

This model is highly pre-fabricated and can be built in a very
short time. However, the work which you have to carry out is
important and must be done carefully. The model will only be strong
and fly well if you complete your tasks competently – so please
work slowly, accurately and check every joint, maybe apply more
glue to be safe.

Product Usage Instructions

Nose Gear Installation

1. Insert the 3mm white nylon tube and 1.2x550mm nose gear pushrod
   into the fuselage as shown.

2. Remove the canopy hatch for easier installation of other
   parts.

Main Landing Gear Installation

1. Install the main landing gear using the provided nylon
   bolts.

2. If necessary, widen the holes in the aluminum landing gear for
   easier installation.

FAQ

Q: Can I use a different motor with this model?

A: It is recommended to use the specified motor for optimal
performance and compatibility.

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Radio control model / Flugmodel
CESSNA 172
1730mm Wingspan
ALL BALSA, PLYWOOD CONSTRUCTION AND ALMOST READY TO FLY
Instruction manual / Montageanleitung
SPECIFICATIONS
Wingspan:………………………………..1730mm Length (installed motor) ……………..1190mm Electric Motor:……………………………800Watt Glow Engine:……………….. .55 2-T / .72 4-T RTF Weight: 3100 – 3450g (will vary with equipment use). Radio:………………..6 Channel / 6-7 Servos Function: Ailerons-Elevator-Rudder-Throttle Flaps.
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 Unterstätzung, 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.

REQUIRED FOR OPERATION (Purchase separately)

Aileron: “Y”x1pcs

Aileron: 50cmx2 pcs Flap: 30cmx2 pcs

Rx battery pack: 20cmx1 pcs

Standard Mini (19g)
8 channels radio Elevator : 1 standard servo Rudder: 1 standard servo Aileron: 2 mini servo Flaps: 2 mini servo Nose gear: 1 mini servo Throttle: 1 mini servo (for glow engine only)

.55 – 2 cycle Silicone tube

.62 ~.72 – 4 cycle

800W Brushless Motor 4S 5000mAh LiPo battery

GLUE (Purchase separately)
SILICON
Silicon sealer

CA
Cyanoacrylate Glue (thin type)

EPOXY A EPOXY B

Epoxy Glue (30 minute type)

TOLLS REQUIRED (Purchase separately)

Hobby knife

Phillip screw driver

Needle nose Pliers

Scissors

Sander

……………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………

Hex Wrench Awl
Wire Cutters

Masking tape – Straight Edged Ruler – Pen or pencil – 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. 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 !

Low seting

Symbols used throughout this instruction manual, comprise:

Drill holes using the stated 1.5mm size of drill
(in this case 1.5 mm )
AB
Use epoxy glue

! Take particular care here
CA Apply cyano glue

Hatched-in areas: remove covering film carefully

Check during assembly that these parts move freely, without binding

Not included.

X L/R

Assemble left and right sides the same way.

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”

SAFETY NOTES BEFORE ASSEMBLING
This model is highly pre-fabricated and can be built in a very short time. However, the work which you have to carry out is important and must be done carefully. The model will only be strong and fly well if you complete your tasks competently – so please work slowly, accurately and check every joints, maybe apply more glue to be safe.
Read through the manual before you begin, so you will have an overall idea of what to do. IMPORTANT: Please do not clean your model with pure alcohol or strong solvents, only use liquid soap with water or use glass
cleaner to clean on surface of your model to keep the colour not fade.

1- Nose gear

Insert the 3mm white nylon tube and 1.2x550mm nose gear pushrod into the fuselage as shown.

The canopy hatch should be removed to make installation of other parts easier.

Nose gear push rod Step 2

3x25mm hex bolt …………….4
3mm washer
…………….4

Step 1

Step 3

Nose gear arm

Step 4

Step 5

2- Main landing gear
4x20mm nylon bolt ….1

Fuselage – Bottom view

4x20mm nylon bolt

NOTE: If necessary, you can drill four holes in the aluminum landing gear wider to make installation easier.

Aluminum main landing gear

3x15mm hex bolt ……….4

Aluminum main landing gear

3x15mm screw

3x15mm screw

3- Main landing gear

4- Main landing gear

2x8mm screw …..16
4mm nut 4mm nut 4x45mm screw
Aluminum landing gear

75mm wheel …2

4X45mm screw

…2

4mm nut

…………4

4mm washer …………6

5- GLOW ENGINE INSTALLATION

! Align the mark on both engine mount beams with the mark on the Fire-wall.

B A
B’

B A B’

B A
B’
Attach the engine mount beams onto the fire-wall so the distance between of two engine mount beams is “A”,and B=B’ as show. Secure the engine mount beams onto the fire-wall with litter CA glue
Using a pencil or felt tipped pen, mark the fire wall where the four holes are to be drilled.

Carefully remove the engine mount beams and drill a 6mm hole through the fire- wall at each of the four marks made above.

6mm

Insert the blind-nut onto each of the four holes make above.
Reposition the engine mount beams on to the fire-wall and secure them with four 4x25mm hexagonal bolts.

4x25mm hexagonal bolt – washer

Blind-nut

……………….4

………………..4

6- GLOW ENGINE INSTALLATION
Position the engine to the engine mounts so the distance from the prop hub to the fire-wall is 127mm. Mark the engine mount beams where the four holes are to be drilled.
127mm

3mm
Remove the engine and drill a 3mm holes through the beam at each of the four marks made above. Marking sure that you drill the hole perpendicular to the beam of the engine mount.
Reposition the engine on the engine mount beams, aligning it with the holes. Secure the engine to the engine mount using four 3x25mm hexagonal bolts.

Note: Apply Silicon sealer to each of the 3x25mm bolt and nut.

3x25mm hexagonal bolt

…….4

Washer

…….4

7- FUEL TANK
To muffler
Filler tube
X
To engine

After confirming the direction . Insert and tighten the screw.
3×35 mm screw
4mm

Blow
Water

Checking for leaks – block the vents and blow into the feed – if in doubt submersing the tank in a blow of water will show up any problems.

Fuel tank

Step 1

8- Electric motor mount
Using a aluminum motor mounting plate as a template, mark the plywood motor mounting plate where the four holes are to be drilled.

Remove the aluminum motor mounting plate and drill a 3mm hole through the plywood at each of the four marks marked .

Step 2

! Align the mark on wooden motor mounting plate with the mark on the fire- wall.

3mm

Step 3

3mm

! Align the mark on wooden motor mounting plate with the mark on the fire- wall.

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

5mm

5mm
Remove the wooden motor mounting plate and drill a 5mm hole through the fire- wall at each of the four marks marked .

9- Electric motor mount

Step 7

3mm bolt / nut…4

Secure the Motor to the wooden motor mounting plate using the four 3mm bolts.

Step 6

5x80mm bolt…..4 5mm nut……….12 5mm washer…16
Attach the four 5x80mm bolts and nuts to the fire-wall as shown.

Adjust the wooden motor mount so the distance from the prop hub to the fire- wall is 131mm.

127mm

10- Horizontal stabilizer

Cut off the gray covering

Insert the horizontal stabilizer into the slot on the fuselage, if necessary, use sander to widen the slot to make this easier.

A

A’

A=A’
Check the alignment of the horizontal stabilizer by measuring from the fixed point along the center line of the fuselage to the trailing edge of the horizontal stabilizer The distance must be equal on both sides.

11- Horizontal stabilizer
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.

Cut away only the covering both sides.

Remove the horizontal stabilizer from the fuselage. Using the sharp hobby knife, carefully cut away the covering inside the lines which were marked above.
Be cautious not to cut into the wood, this will weaken the structure.

Aluminum wing joiner

12- Horizontal stabilizer
Again, slide the horizontal stabilizer into the slot on the fuselage. Check the alignment of the horizontal stabilizer (B=B’).

B

B’

CA Thin CA

Thin CA CA

B=B’
The distance must be equal on both sides (B=B’). If not, adjust the stabilizer until the measurement are the same.

When you are satisfied with the alignment, glue the both sides of the horizontal stabilizer where it meets the fuselage.

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

13- Vertical stabilizer

Step 1
Trial fit the vertical stabilizer in place on the fuselage. Check the alignment of the vertical stabilizer with the fuselage.
Step 2

14- Vertical stabilizer
Trial fit the vertical stabilizer in place on the fuselage. Check the alignment of the vertical stabilizer with the fuselage. When you are satisfied with the alignment, use a pencil to carefully trace around the left and right of the vertical stabilizer where it meets the fuselage.
Step 3

Step 5

Step 4
Cut away only the covering both sides.

Remove the vertical stabilizer from the fuselage. Using the sharp hobby knife, carefully cut away the covering inside the lines which were marked above.
Be cautious not to cut into the wood, this will weaken the structure.

Again, slide the vertical stabilizer into the slot on the fuselage. Check the alignment of the vertical stabilizer (A=A’). You can also use a 90 degree square ruler as shown in the picture.

A

A’

A=A’

15- Vertical stabilizer
Use a small glue faucet, Apply the thin CA glue on the vertical stabilizer where it contacts the fuselage (both the left and right sides).
Apply thin CA glue on the top and bottom of the hinges and into the hinge slots.
Thin CA
CA

! Securely glue together. If coming off during fly, you lose control of your air plane.
CA Thin CA
Step 6

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

Thin CA
CA

CA Thin CA Apply thin CA glue on the left and right of the hinges and into the hinge slots.

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

16- Control horn

17- Connector
SILICON
Connector ……….4

Threadlocker SILICON

Connector

……….1
2x950mm rod/clevis …3

1.2x550mm throttle rod ……….2

2x100mm rod

……….1

17- Linkages

FUEL TANK Nose gear / Throttle servo
Throttle servo
Nose gear servo

Elevator / Rudder servo
Elevator servo Rudder servo

18- Linkages

19- Pilot’s seat

FUEL TANK
Carefully, press the hooks of the pilot’s seat legs into the rectangular slots on the floor then gently push the chair legs back to lock them. Remove the pilot’s seat by gently pushing all four legs forward and lifting them up.
Pilot’s seat

Elevator servo Rudder servo

20- Cowl
Insert the cowl onto the fuselage so that the distance from the prop hub of engine to the front of the cowl is 2mm as shown.

2mm

1mm

2.5x10mm screw ……6

21- Aileron and Flap servo
Using the thread (pre-installed at factory) to slide the aileron extension cord into the wing half.
Flap servo hatch

FLAP SERVO HATCH – BOTTOM VIEW Hard wood servo mount
A

X 50cm Extension cord

1.5mm

A
CA
Thin CA ! Securely glue together. If coming off during fly,
you lose control of your air plane.

!

IMPORTANT:
To be safe, you must attach the four screws as shown in this picture.

2x8mm

2x8mm

1mm

1.5mm
FLAP SERVO HATCH – TOP VIEW

1mm
2x8mm screw servo hatch
servo mount

22- Control horn and linkages

2x8mm screw ………4

2x8mm

CA Thin CA

1mm

2mm

L/R

Plastic control horn with screws ……1 Set
Plastic control horn ……1
Connector ……1
FLAP LINKAGE

Thread locker

Thread locker

23- Dowel
6x20mm wooden dowel 6x20mm wooden dowel

CA Thin CA

Note: The wooden dowels must be perpendicular with the root rib.

24- Joining the wing
Slowly, push the aluminum tube through the fuselage in a spiral.
Carefully, push each wing close to the fuselage. Once the wings is close to the fuselage, hold it in place with two 7mm nylon bolts.
……….2

25- Wing brace

Make a 10mm round hole on the plastic cover as shown.
Then thread these two plastic cover into the wing brace as shown.
Note: The blind nut is already installed inside
1 STEP
3x15mm hex bolt

2 STEP
3x12mm screw
The hole on the wing surface has been pre-drilled in the factory.

Attach the 3mm hex bolt on the fuselage first (Step 1). Then, attach the 3mm screw on the wing (Step 2).
3x15mm hex bolt ………2
3x12mm screw ………2

26- Wing brace

2x8mm

2x8mm screw

27- Antenna

Antenna mount.

3mm White nylon tube

3mm

Step 1
Step 5

CA Thin CA

2x8mm screw ………16
CA Thin CA

29- Balance

THE CENTER OF GRAVITY IS LOCATED 67 – 71mm BACK FROM THE LEADING EDGE OF THE WING, AT THE FUSELAGE. BALANCE A PLANE UPSIDE DOWN WITH THE FUEL TANK EMPTY.
67-71mm

1- Mount the wing to the fuselage. Using a couple of pieces of masking tape, place them on the top side of the wing (67-71mm) back from the leading edge, at the fuselage sides.
2- Lift the airplane. Place your fingers on the masking tape and carefully lift the plane.

3- If the nose of the plane falls, the plane is heavy nose. To correct this, move the battery pack further back in the fuselage. If the tail of plane falls, the plane is tail heavy. To correct this, move the battery forward or if this is not possible, stick weight onto the firewall. When balanced correctly, the airplane should level or slightly nose down when you lift it up with your fingers.
LATERAL BALANCE: After you have balanced a plane on the CG, you should laterally balance it. Doing this will help the airplane track straighter.
1- Turn the airplane upside down. Attach one loop of heavy string to the engine crankshaft and one to the tail wheel wire. With the wing level, carefully lift the airplane by the string. This may require two people to make easier.
2- If one side of the wing fall, that side is heavier than the opposite. Add small amounts of lead weight to the bottom side of the lighter wing half’s wing tip. Follow this procedure until the wing stays level when you lift the airplane.
30- Control surface

FLAP

20mm

AILERON

10mm 10mm

Position for right diagram

ELEVATOR

15mm 15mm

RUDDER

30mm 30mm

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 Spitfire 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”.

31- Decor

CIVIL AIR PATROL VERSION FLIGHT CENTER-DE. VERSION Sticker
Sticker

Sticker

Sticker

IMPORTANT: Please do not clean your model with strong solvent or pure alcohol, only use kerosene to keep the colour of your model not fade.

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