Zlin Aircraft Z-526 Akrobat User manual

SPECIFICATIONS
Wingspan:......................................1610mm
Length:...........................................1190mm
Electric Motor:.....................See next pager
Glow Engine:.................... .46 2-T / .70 4-T
Radio:....................7 Channel / 7 Servos
Function: Ailerons-Elevator-Rudder-Throttle
Flaps-Optional Retractable Landing Gear.
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.
Radio Control Model / Flugmodell
ALL BALSA, PLYWOOD CONSTRUCTION AND ALMOST READY TO FLY
Instruction manual / Montageanleitung
TECHNISCHE DATEN
Spannweite:...................................1610mm
Lange:............................................1190mm
Elektroantrieb.............(siehe nächste Seite)
Verbrennerantrieb:...............7.45cc - 11.5cc
Fluggewicht:.......................................3.2Kg
Fernsteuerung..........7 Kanal / 7 Servos
RTF Weight: 3.2Kg (will vary with equipment
use)
ZLIN
Z-526 Akrobat

1.5mm
AB
!
CA L/R Assemble left and right
sides the same way. X
Drill holes using the stated
size of drill
(in this case 1.5 mm )
Use epoxy glue
Take particular care here
Hatched-in areas:
remove covering
film carefully
Not included.
These parts must be
purchased separately
Check during assembly that these
parts move freely, without binding
Apply cyano glue
SILICON
CA
GLUE
Silicon sealer Cyanoacrylate Glue (thin type)
Minimum 7 channel radio
Extension cord for aileron servos: 50cm(x2)
TOLLS REQUIRED
Hobby knife
Needle nose Pliers
Phillip screw driver
Awl
Scissors
Wire Cutters
(Purchase separately) Hex Wrench
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Sander
Masking tape - Straight Edged Ruler - Pen or pencil - Drill and Assorted Drill Bits
Read through the manual before you begin, so you will have an overall idea of what to do.
Symbols used throughout this instruction manual, comprise:
(Purchase separately)
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”
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
Optional accessories. Please visit www.shop.pichler.de for more information
Low seting
BOOST 50 Brushless Combo Set
# C3173
LiPo Akku RED POWER 3500-14,8V # C9418
Extension cord for flap servos: 50cm(x4)
Extension cord for retract servos: 30cm(x2)
Extension cord for Rx battery pack: 20cm(x1)
EPOXY A
EPOXY B
Epoxy Glue
(30 minute type)
Standard Mini
Elevator : 1 standard servo
Rudder: 1 standard servo
Aileron: 2 mini servo
Flaps: 2 mini servo
Throttle: 1 mini servo (for glow engine only)
Empfohlenes Sonderzubehör.
Mehr Infos unter www.shop.pichler.de

1-Depending on the position of the linkage, determine the location of aileron control horn.
The horn holes must be perfectly aligned with the axis of articulation.
2-Mark the position of the “foot” of the horn on the aileron. Then, with the drill, make the 2
holes.
3-Install the aileron control horn as shown.
..........4
WING - BOTTOM VIEW
1-Cut away the covering of the wing bottom
where the aileron servo goes.
3-Install the aileron and flap servo on the servo mount.
-Switch on the radio (trims centered)
Then mount the ailerons servo horn
In neutral position.
-The servo horn should be
Perpendicular to the servo
YES NO
Do the same way with second wing half
....2
2x20mm....4
X
2 mm
Aileron pushrod
Adhesive
tape
2-Connect the aileron and flap servo cord to the
extension cords.
WING - BOTTOM VIEW
The rectangular hole on the bottom
of the flap is pre-cut at factory
Control horn Alignment
CA Thin CA
2x30mm
3mm
....2
EZ link
...4
ZLIN Z-526 1- Aileron and Flap servo
2- Aileron and Flap control horn
3- Aileron and Flap - Linkages

1
Aileron extension cord
exit hole
cut away only
the covering
WING - TOP VIEW
Keep the aileron extension cord
in place using sticker.
2
X
ZLIN Z-526 4- Extension cord secured
5- E-retract - Strut installation 3x15mm screw
...4 / not include

Ply gear mount
plate x 2
Gear mount x 2
Main landing gear
Gear mount
3x20mm
Nylon gear
strap
2mm
Ply gear
mount flat
Square
plastic
2mm
3x20mm screw
..........8
3x12mm screw
......16
Nylon gear strap
.......4
Square plastic
x 2
ZLIN Z-526 6- Decor 2x6mm screw
...........5
7- Fixed gear

AB
AB
Use epoxy glue to bury the
opening
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 up some 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. Clean off the excess epoxy with paper towel and kerosene.
Center line
Binder clip
Nylon wing bolt
Rubber band
(both the top
and bottom)
IMPORTANT: 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.
75mm whell ...x2
4mm collar...4
ZLIN Z-526 8- Fixed gear
Top view
9- Joinning the wing halves

! Engine thrust on fire-wall
is already adjust at factory
FRONT-VIEW
- Remove the engine mount and drill a 13/64”
(5mm) hole through the fire-wall at each of the
four marks marked.
- Using a pencil or felt tipped pen, mark the
fire wall where the four holes are to be drilled
- Reposition the engine mounts on to the
fire-wall.
Secure them with four 4x25mm bolts
and blind-nuts.
! Align the mark on both mounts
with the mark on the fuselage
Pull the magnetic top hatch
out of the fuselage.
BB’
B=B’
5mm
13/64”
...4
.................4
4x25mm bolt
Blind-nut
5/32x1”
ZLIN Z-526 10- Engine

- Reposition the engine on to the engine mounts so
the distance from the prop hub to the fire wall is
132 to133mm.
- Remove the engine and drill a 1/8”(3mm) holes
through the beam at each of the four marks made
above.
- Reposition the engine on the engine mount beams,
aligning it with the holes. Secure the engine to the
engine mount using four 1/8x51/64”(3x25mm)
screws.
132 - 133mm
- Mark the engine mounting plate where the four
holes are to be drilled.
Note: Mark the mounting plate through the engine
mounting flanges.
3mm
3x20mm bolt
1/8”(3mm) nut
.................4
...4
1/8x5-1/64”
ZLIN Z-526 11- Engine

X
To muffler
Filler tube
To engine
3x25mm
screw
Rubber stopper
1
After confirming the direction . Insert this assembly, clunk end first, into the fuel
tank and tighten and screw the fuel tank cap on firmly.
3x35 mm screw 4mm
23
Ensure that the fuel tank clunk does not touch the rear of the fuel tank.
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.
Blow
Water
Carefully install the fuel tank to ensure that they will not
shift during flight (secure the fuel tank in place using
zip tie).
Cut of shaded portion
1.5mm
3mm
Prop. hub
2,5x10mm screw
...........5
ZLIN Z-526 12- Fuel tank
13- Cowling

-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 1/8”(3mm) hole through the plywood at each
of the four marks marked .
Note: The aluminum motor mounting included with
electric motor set.
3mm
- Remove the plywood motor mounting and drill a
6mm holes through the beam at each of the
four marks made above.
6x100mm..........4
6mm nut.........12
6mm washer...16
6mm
! Align the mark on plywood motor mounting
with the mark on the fire-wall.
! Align the mark on plywood motor mounting
with the mark on the fire-wall.
ZLIN Z-526 14- Electric motor

3mm screw/nut...4
- Position the motor on to the plywood motor mounting so
the distance from the prop hub to the fire wall is
132 to133mm.
- Secure the motor to the plywood motor mounting
using the four 3x20mm screws.
Firewall
132-133mm
B’
B
B=B’ SIDE VIEW
Firewall
132-133mm
C’
C
C=C’ TOP VIEW
B=B’
=
! Engine thrust on fire-wall
is already adjust at factory
132 - 133mm
ZLIN Z-526 15- Electric motor
16- Installing the wing
6x50mm nylon bolt
.....2

ZLIN Z-526 17- Installing the bottom cover
CA
CA

Push the horizontal stabilizer into the slot on the fuselage
as show. Check the alignment of the horizontal stabilizer
by measuring from a fixed point along the center line of
the fuselage to the leading edge on each side of the
horizontal stabilizer. The distance must be equal on both
sides . If not, adjust the stabilizer until the measurements
are the same (see picture below: A=A’).
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 side
Remove the horizontal stabilizer
from the fuselage. Using a straight edge
and a 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.
Pull the left and right elevator out of the horizontal stabilizer.
Using a sharp hobby knife, carefully cut away the covering
around of all slots for the horizontal stabilizer and vertical
fin installation.
Cut away only
the covering
18A
18B
18B
18C
18D
18D
ZLIN Z-526 18- Horizontal stabilizer
18A
AA’
A=A’

Install the horizontal stabilizer onto the fuselage and adjust the alignment as described in steep 18B.
Note: it is important to ensure that the horizontal stabilizer is also level in regards to the fuselage.
Apply the thin CA along the area where the covering was removed in the previous step and to the
fuselage where the horizontal stabilizer mounts .
Trial fit the vertical fin in position. Using
a 90 degree triangle, ensure that the
vertical stabilizer is perpendicular to the
horizontal stabilizer.
Using a pencil, trace around the vertical
stabilizer where it meets the fuselage.
Remove the vertical stabilizer from the
fuselage.
Pull the rudder out of the vertical fin.
Carefully, push the vertical fin into the
slot on the fuselage as shown.
90 degree
triangle
20A
20B
CA
Apply CA glue
both sides.
(thin CA)
CA
Apply thin CA glue into the slot where
the fuselage meet the horizontal stabilizer.
ZLIN Z-526 19- Horizontal stabilizer
20- Vertical stabilizer
BB’
B=B’

Insert the vertical fin into the fuselage, precisely align
the vertical stabilizer as described in step 20B.
Apply the thin CA glue on the vertical stabilizer where it
contacts the fuselage.
! Securely glue together. If coming off during fly,
you lose control of your air plane.
Remove the vertical stabilizer from the fuselage.
Using s sharp hobby knife, carefully cut away the
covering below the lines which were drawn in the
previous steep. Do not cut into the woods as this
will affect the structural integrity of the stabilizer.
CA
Apply thin CA
glue both sides
CA
Apply thin CA
glue on both sides
of the hinge
HORIZONTAL STABILIZER
HORIZONTAL STABILIZER
TOP-SIDE
TOP-SIDE
Cut away only
the covering (both sides)
90 degree
triangle
Without using glue yet, push the elevator and its
hinges into the hinge slots in trailing edge of the
horizontal stabilizer.
HORIZONTAL STABILIZER
TOP-SIDE
CA
Apply thin CA
glue on the bottom
of the hinge
! Securely glue together. If coming off during fly,
you lose control of your air plane.
ZLIN Z-526 21- Vertical stabilizer
21A
21B
22- Installing the elevator

Plastic control
horn
2x12mm screw
............................2
.......................4
Push the rudder push-rod with clevis into the black nylon push-rod
guide.
Using the plastic control horn as a template, mark
the mounting hole positions, where the rudder clevis
meet the rudder control horn with a felt tipped or a pencil.
Remove the control horn and drill two 2mm
holes through the rudder .
Attach the rudder control horn using the hardware provided
(two 2x12mm screws and a back plate).
Control horn Alignment
STABILIZER
Push the elevator push-rod with clevis into the
black nylon push-rod guide.
Using the plastic control horn as a template,
mark the mounting hole positions, where the
elevator clevis meet the elevator control horn
with a felt tipped or a pencil.
Move the plastic control horn and drill two 2mm
holes through the elevator.
2mm
Attach the elevator control horn using the
hardware provided (two 2x12mm screws and a
back plate).
Apply a thin layer of
petroleum jelly on the
leading edge of elevator.
CA
RUDDER
VERTICAL STABILIZER
(TOP VIEW)
Apply thin CA
glue on both sides
of the hinge
Plastic control
horn
2x12mm screw
............................1
.......................2
ZLIN Z-526 23- Elevator control horn
24- Installing the rudder - control horn

25mm wheel
- Insert the tail wheel push-rod into the hole on the
tail gear control horn (as show).
- Install the tail wheel control horn in place.
- Secure the tail wheel control horn in place using a
2mm screw set, ensure smooth non-binding movement.
...............1
Tail landing gear
..........1
.................1
Tail wheel control-
horn
2mm I.D collar
- Instal the tail wheel gear in place.
..........1
........1
1.2x880mm rod
.......3
2x950mm rod
Steel clevis
.......3
ZLIN Z-526 25- tail wheel
26- Linkages
CA
CA

................2
....................1
2mm
Connector
(2 x120mm) rod
............2
(1.2 x500mm) throttle rod
............1
2 mm
Throttle servo
Throttle rod
In case of Glow engine using
X
Elevator pushrod
D=5/64”(2mm)
3mm set Screw
2 mm
Elevator pushrod
Elevator servo
X
FUSELAGE - BOTTOM VIEW
ZLIN Z-526 27- Servo - linkages

PREMIUM
EXPERIMENTAL
PREMIUM
PREMIUM
SE-KLB
EXPERIMENTAL
PREMIUM
ZLIN Z-526 28- Decor
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.
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.
Red stripe decal

ZLIN Z-526 29- Decor
HB-TRQ
HB-TRQ
ZLIN 526 SWISS
HB-TRQ
ZLIN 526 ASM
Sticker