Sebart Mytho S 125E ARF User manual

SebArt professional line
Mytho S 125E ARF
ASSEMBLY MANUAL
The all new Mytho S 125E ARF was designed by Italy aerobatic
pilot, Sebastiano Silvestri.
For this professional ARF model design has been selected the
ultimate and best aerodynamically effective ideas of the
modernst F3A models and combined with the well now and
succesfull Wind S pro F3A SebArt design.... the result will
surprise you!
The Mytho S 125E ARF, with his extremely lightweight structure
and all wood airframe, will offer you an impressive precision
and smoothness at any airspeed and flight condition.
The Mytho S 125E ARF will be your next F3A dream plane!
.....the only aerobatic limit is your fantasy!
Specifications: Recommended Set p:
Wingspan:…...........180 cm (71 in) Radio:…….………………6-ch with 5 digital servos
Length:…........……190 cm (75 in) Motor: ..new Hac er A60-5XS + Jeti SPIN 99-Opto
Wing Area:........61 dm² (945 sq.in) Motor battery: ……….....…5000-6S Thunder Power
Weight:....3.650 g. RTF less motor battery Prop: ….………..………......…..……….APC 18x8E

Required radio, motor and battery
Radio equipment:
•Minimum 6-channel radio system
•5 digital servo: 3 JR DS 8401 or DS 8425 (ailerons and rudder) + 2 JR DS
3201 (elevators)
•2 servo extension 100mm, for aileron servos
•2 extension 500mm, for elevator servos
•1 extension 400mm, for rudder servo
Recommended electric motor for best performance:
•Hac er A60-5XS + Jeti SPIN 99-Opto + APC 18x8E
Additional required item, tools and adhesives
Tools:
•Drill and drill bits: 1,5mm; 2mm; 2,5mm; 3mmPhillips screwdriver
•Hobby nife
•Mas ing tape
•Paper towels
•Rubbing alcohol
•Sand paper
•Soldering iron
•synthetic oil
Adhesives:
•thin CA
•medium CA
Warning
This RC aircraft is not a toy!
If misused, it can cause serious bodily harm and damage to property.
Fly only in open areas, preferably in official flying sites, following all instructions
included with your radio and motor.
This plane is a compromise between Aerobatics and 3D flying, and not a pylon racer.
It is built with a very light structure and for this reason we hardly recommend:
Do NOT fly your airplane at high speeds, because this may cause structural
failures or flutter due to the extremely large control surfaces.

Before starting assembly
Before starting the assembly, remove each part from its bag and protection for a prior
inspection. Closely inspect the fuselage, wing panels, rudder, and stabilizer for
damage. If you find any damage or missing parts, contact the place of purchase.
If you find any wrin les in the covering, use a heat gun or covering iron to remove
them. Use caution while wor ing around areas where the covering material overlap to
prevent separating the covers.
Warranty information
SebArt garantees this it to be free from defects in both material and wor manship at
the date of purchase.
This warranty does not cover any parts damage by use or modification, and in no case
shall SebArt’s liability exceed the original cost of the purchased it. Further, SebArt
reserve the right to change or modify this warranty without notice. In that SebArt has
no control over the final assembly or material used for the final assembly, no liability
shall be assumed or accepted for any damage of the final user-assembled product. By
the act of using the product, the user accepts all resulting liability.
If the buyer is not prepared to accept the liability associated with the use of this
product, the buyer is advised to return this kit immediately in new and unused
condition to the place of purchase.
Control throws
Please, follow the recommended lin age setups:
For the AILERONS we recommend the following throws:
High rate: 40° left right
Normal flight: D/R: 30% Expo: 20%
Snap: D/R: 100% Expo: 90%
Spin & 3D: D/R: 100% Expo: 90%
For the ELEVATOR we recommend the following throws:

High rate: 40° up down
Normal flight: D/R: 30% Expo: 30%
Snap: D/R: 40% Expo: 50%
Spin & 3D: D/R: 100% Expo: 95%
For the RUDDER we recommend the following throws:
High rate: 40° left right
Normal flight: D/R: 40% Expo: 60%
Snap: D/R: 50% Expo: 70%
Spin & 3D: D/R: 100% Expo: 90%
Note: the Expo is (+) for JR systems, and (–) for Futaba systems.
Mixing
For best performance, we recommend a linear-mix*:
Rudder Elevator UP
When you give full rudder to the right or left side, the elevator have to go up
(positive) approx. 1%
* if you have a programmable computer radio.
Recommended CG
The recommended Center of Gravity location is 220mm behind the leading
edge of the wing against the fuselage.

215mm is good for windy condition.
225mm is good for no wind condition.
You can use the battery pac , moving it forward or bac ward, to achieve the correct
balance.
Range test your radio
Before fly, be sure to range chec your radio as manufacturer’s instruction
manual of you radio-system recommend.
Double-chec all controls (aileron, elevator, rudder and throttle) move in the
correct direction.
Be sure that your batteries are fully charged, as per the instructions included
with your batteries and that your radio is fully charged as per its instructions.
Finally... have nice flights!
SEBART International S.r.l.
Via L. Tabellione, 1
47891 Rovereta - Repubblica di San Marino (RSM)
www.sebart.it

H = h
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engine
cut
step 02
step 01
5 min
130 mm
medium
20 mm
C
D
A = B
B
tape
adesive
Eletric engine version
Eletric engine version
Eletric engine version
Epoxy 20 min.
Rudder
Epoxy
CA
Thin
Silicon
20 min.
Extension
Rudder
tape
tape
950 mm.
OIL

H = h
measur
ed
“step
103” – h
engine
cut
step 04
step 03
5 min
130 mm
medium
20 mm
C
D
A = B
B
tape
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Eletric engine version
Eletric engine version
Eletric engine version
Epoxy 20 min.
Rudder
Epoxy
CA
Thin
Silicon
20 min.
hinge
Axis
tape
tape
950 mm.

H = h
measur
ed
“step
103” – h
engine
cut
step 06
step 05
5 min
130 mm
medium
20 mm
C
D
A = B
B
tape
adesive
Eletric engine version
Eletric engine version
Eletric engine version
Epoxy 20 min.
Rudder
Epoxy
CA
Thin
Silicon
20 min.
tape
tape
950 mm.
CA
Medium

H = h
measur
ed
“step
103” – h
engine
cut
step 08
step 07
5 min
130 mm
medium
20 mm
C
D
A = B
B
tape
adesive
Eletric engine version
Eletric engine version
Eletric engine version
Epoxy 20 min.
Rudder Epoxy
CA
Thin
Silicon
20 min.
tape
tape
950 mm.
CA
Medium

H = h
measur
ed
“step
103” – h
engine
cut
step 10
step 09
5 min
130 mm
medium
20 mm
C
D
A = B
B
tape
adesive
Eletric engine version
Eletric engine version
Eletric engine version
Epoxy 20 min.
Rudder
Epoxy
CA
Thin
Silicon
20 min.
tape
tape
90°
CA
Medium

H = h
measur
ed
“step
103” – h
engine
cut
step 12
step 11
5 min
130 mm
medium
C
D
A = B
B
tape
adesive
Eletric engine version
Eletric engine version
Eletric engine version
Epoxy 20 min.
Aileron
Epoxy
CA
Thin
Silicon
20 min.
tape
tape
950 mm.
CA
Medium

H = h
measur
ed
“step
103” – h
engine
cut
step 14
step 13
5 min
130 mm
medium
66 mm
C
D
A = B
B
tape
adesive
Eletric engine version
Eletric engine version
Eletric engine version
Epoxy 20 min.
Aileron
Epoxy
CA
Thin
Silicon
20 min.
tape
tape
950 mm.
CA
Medium

H = h
measur
ed
“step
103” – h
engine
cut
step 16
step 15
5 min
130 mm
medium
66 mm
C
D
A = B
B
tape
adesive
Eletric engine version
Eletric engine version
Eletric engine version
Epoxy 20 min.
Aileron
Epoxy
CA
Thin
Silicon
20 min.
tape
tape
950 mm.
CA
Medium

H = h
measur
ed
“step
103” – h
engine
cut
step 18
step 17
5 min
130 mm
medium
66 mm
C
D
A = B
B
tape
Remove
Eletric engine version
Eletric engine version
Eletric engine version
Epoxy 20 min.
Aileron
Epoxy
CA
Thin
Silicon
20 min.
tape
tape
950 mm.
CA
Medium

H = h
measur
ed
“step
103” – h
engine
cut
step 20
step 19
5 min
130 mm
medium
22 mm
C
D
A = B
B
tape
adesive
Eletric engine version
Eletric engine version
Eletric engine version
Epoxy 20 min.
Aileron
tape
adesive
CA
Thin

H = h
measur
ed
“step
103” – h
engine
cut
step 22
step 21
5 min
130 mm
medium
22 mm
C
D
A = B
B
tape
adesive
Eletric engine version
Eletric engine version
Eletric engine version
Epoxy 20 min.
Aileron
Activator
CA
Thin
CA
THIN

H = h
measur
ed
“step
103” – h
engine
cut
step 24
step 23
5 min
130 mm
medium
22 mm
C
D
A = B
B
tape
adesive
Eletric engine version
Eletric engine version
Eletric engine version
Epoxy 20 min.
Aileron
Activator
CA
Thin
CA
Medium

H = h
measur
ed
“step
103” – h
engine
cut
step 26
step 25
5 min
130 mm
medium
C
D
A = B
B
tape
adesive
Eletric engine version
Eletric engine version
Eletric engine version
Epoxy 20 min.
Elevator
Activator
CA
Medium

H = h
measur
ed
“step
103” – h
engine
cut
step 28
step 27
5 min
130 mm
medium
65 mm
C
D
A = B
B
tape
adesive
Eletric engine version
Eletric engine version
Eletric engine version
Epoxy 20 min.
Aileron
Activator
CA
Thin

H = h
measur
ed
“step
103” – h
engine
cut
step 30
step 29
5 min
130 mm
medium
65 mm
C
D
A = B
B
tape
adesive
Eletric engine version
Eletric engine version
Eletric engine version
Epoxy 20 min.
Aileron
Activator
CA
Thin