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 know 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 Up:
Wingspan:…...........180 cm (71 in) Radio:…….………………6-ch with 5 digital servos
Length:…........……190 cm (75 in) Motor: ..new Hacker 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:
• Hacker 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 knife
• Masking 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 wrinkles in the covering, use a heat gun or covering iron to remove
them. Use caution while working around areas where the covering material overlap to
prevent separating the covers.
Warranty information
SebArt garantees this kit to be free from defects in both material and workmanship 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 kit. 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 linkage 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 pack, moving it forward or backward, to achieve the correct
balance.
Range test your radio
Before fly, be sure to range check your radio as manufacturer’s instruction
manual of you radio-system recommend.
Double-check 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
step 02
step 01
Epoxy 20 min.
OIL
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Epoxy
20 min.
hinge
Axis
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Epoxy
20 min.
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CA
Medium
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90°
CA
Medium
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Aileron
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adesive
tape
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Remove
tape
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CA
Thin
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CA
Thin
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CA
Medium
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Elevator
CA
Medium
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65 mm
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65 mm
tape
adesive
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65 mm
tape
Remove
Epoxy 20 min.
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65 mm
OIL
Epoxy
20 min.
Epoxy 20 min.
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65 mm
Epoxy
20 min.
hinge
Axis
cut
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65 mm
OPZION 1
OPZION 2
step n° 72/81
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65 mm
CA
Medium
cut
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65 mm
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105 mm
Rudder
Extension
Rudder
950 mm.
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OIL
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20 mm.
6 mm.
Drill
4 mm.
Drill
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Epoxy
CA
Thin
5 min.
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Silicon
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Silicon
Remove
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Extension
Elevator
1200 mm.
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1,5 mm.
Drill
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1,5 mm.
Drill
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PRESS
OPZION 2
step n° 72/81
Cut
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Cut
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CA
Medium
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CA
Medium
Drill
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Electric engine version
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Electric engine version
Electric engine version
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Electric engine version
Electric engine version
cut
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Electric engine version
Electric engine version
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Electric engine version
Electric engine version
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Electric engine version
Electric engine version
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Electric engine version
Electric engine version
CA
Medium
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C.G.
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