Sebart F3A-70E User manual

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F3A -70E
ASSEMBLY MANUAL
The new F3A-70E , was designed in an extremely lightweight structure,
the all wood airframe, and the new revolutionary Lift Generator on
landing gear give the F3A-70E an impressive thrust- to-weight ratio and
an impressive precision at any airspeed and flight condition.
The F3A-70E can do it all… it is ready for any pattern sequence as for
unbelievable easy torque rolls, slow speed knife-edge and almost
anything else you can dream up are waiting you!
.....without any aerobatic limit when you fantasy to do it !
Specifications
Wing Span:……….…….....1381 mm (54 in.) Recommended power set up:
Length:….......……. ….….. 1428 mm (56 in.) Motor:.... .......... .......... ... Hacker A50-16S
Wing Area:……............. 37.5 dm2 (59 sq.in.) ESC:…… …… … … …… . X70 SBec-Pro
Weight: 3000 g. RTF less battery (77,4 oz) Battery: Flight Power 3300-6S or 3700-6S
Radio:…..4-Channel with 4 standard servos Propeller: … …. ….… ……. APC 16x10E

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Table of contents
Table of contents............................................................................................................................. 2
Required radio, motor and battery..................................................................................................3
Additional required items, tools and adhesives. .............................................................................3
Warning...........................................................................................................................................3
Before starting assembly................................................................................................................ 3
Using the manual. ..........................................................................................................................4
Section 1 –ailerons installation......................................................................................................5
Section 2 –aileron servo & control horn installation… .................................................................7
Section 3 –rudder installation & tail wheel installation................................................................. 8
Section 4 –elevator installation......................................................................................................10
Section 5 –elevator servo & control horn installation....................................................................12
Section 6 –rudder servo & control horn installation… ..................................................................13
Section 7 –landing gear & wheels installation…........................................................................... 15
Section 8 –electric motor installation ............................................................................................17
Section 9 –cowl installation… .......................................................................................................19
Section 10 –final radio installation ................................................................................................20
Wings installation. ...........................................................................................................................21
Decal set application.......................................................................................................................21
Control throws. ...............................................................................................................................22
Mixing............................................................................................................................................. 22
Rates and expos................................................................................................................................22
Recommended CG...........................................................................................................................22
Range test your radio. ......................................................................................................................22

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Required radio, motor and battery
Radio equipment:
 Minimum 4-channel radio system
 4 digital standard servo, recommended JR PROPO DS9401 or DS8301
 1 servo extension 600mm, for elevator servo
 2 servo extension 100mm, for aileron’s servos
Recommended electric motor for best performance:
 Hacker A50-16S + X70 SBec-Pro controller + APC 16x10E
Recommended Li-Po battery pack for best performance:
 Flight Power EVO 3300mAh 6S…for unlimited 3D
 Flight Power EVO 3700mAh 6S…for duration and precision
Additional required item, tools and adhesives
Tools:
 Drill
 Drill bits: 1,5mm, 2mm, 3mm
 Phillips screwdriver
 Hobby knife
 Sanding paper
 Masking tape
 Soldering iron
Adhesives:
 thin CA
 medium CA
Warning
This RC aircraft is not a toy!
If misused, it can cause serius 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
Before starting assembly
Before starting the assembly of your F3A- 70E-A4, 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

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Using the manual
This manual is divided into sections to help make assembly easier to understand and to
provide breaks between each major section.
In addition, check boxes have been placed next to each step to keep track of each step
completed. Steps with two boxes indicate that the step will require repeating, such as for a
right or left wing panel, two servos, etc.
Rember to take your time and follow the directions.

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Section 1 –ailerons installation
step 1
Trial fit the four aileron hinges, included in the hardware pack, in their place and verify the correct
position and alignment of the aileron with the wing panel.
 step 2
Carefully glue, with some drops of thin CA, each of the four hinges in the aileron.
 step 3
Locate the aileron and carefully glue, with some drops of thin CA, the hinges into the wing panel.

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 step 4
Work the aileron up and down some times to work the hinges and check for proper movement.
 step 5
Repeat steps 1 through 4 for the remaining wing panel.
Section 2 –aileron servo & control horn installation
 step 1
Locate the following items included in the hardware pack and the servo.
 step 2
Test the best position of the servo wood block, and glue it on the plywood as per picture showed.
 step 3
Pre-install the rock-arm and the servo with the self-tapping as per picture.

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 step 4
Glue the epoxy horn with medium CA into the aileron,as per picture.
 step 5
Put the pre-installation servo into the wing panel,as per picture.
 step6
Install the push and pull rod connecting rod.
 step 7
Repeat steps 1 through 6 for the remaining wing panel.
This four place need to use a
needle to remove the cover
and fix the plywood with the
self-tapping screws.

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Section 3 –rudder installation & tail wheel installation
 step 1
Locate the items included in the hardware pack.
 step 2
Drill in the rudder, 20mm from the bottom, the location for the tail wheel using a 2mm drill bit.
With the hobby knife cut a groove of 20mm length into the rudder.
 step 3
Than locate the items included in the hardware pack and assemble them as per picture.

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 step 4
Drill the screw locations for the tail wheel using a 1,5mm drill bit, and install it as per picture.
 step 5
Insert the three hinges in their appropriate slots and glue them with some drops of thin CA.
 step 6
Carefully put some drops of medium CA into the 2 mm hole into the rudder. Carefully locate the
rudder and glue the hinges with some drops of thin CA.
 step 7
Work the rudder right and left some times to work the hinges and check for proper movement.

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Section 4 –elevator installation
 step 1
Insert in the elevator the four hinges into their appropriate slots and verify the correct position and
alignment of the elevator with the stabilizer. Than carefully glue the hinges, with some drops of thin
CA, in the elevator only.
 step 2
Insert carefully the elevator through the fuselage.
 step 3
Insert the stabiliser into fuselage space and locate the elevator hinges into the stabiliser.

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 step 4
Glue carefully the hinges in the stabiliser with some drops of thin CA.
 step 5
Locate the carbon tube in his position and carefully check the alignment of the stabilizer with the
fuselage, as per pictures.
 step 6
Once satisfied with the alignment, glue carefully with thin CA the stabilizer at the fuselage.

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Section 5 –elevator servo & control horn installation
 step 1
Locate the following items included in the hardware pack, servo extension 600mm long and servo.
 step 2
Than install the servo hardware (gommets and eyelets) and locate the servo into the fuselage.
 step 3
Drill using a 1,5mm drill bit, and install the servo into the fuselage using a Phillips screwdriver.
Before install the servo
use a knife to remove
the cover
This one can use the
Hexagonal Ball linkage

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 step 4
Glue the epoxy horn with medium CA into the elevator. Than install the hardware and make the
final adjustment as per picture.
Section 6 –rudder servo & control horn installation
 step 1
Locate the following items included in the hardware pack, servo extension 600mm long and servo.
or
 step 2
Than install the servo hardware (gommets and eyelets), drill using a 1,5mm drill bit, and install the
servo into the fuselage using a Phillips screwdriver.

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 step 3
Glue the fibreglass horn with medium CA into the rudder.
 step 4
Install the hardware and make the final adjustment as per picture.
or

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Section 7 –landing gear & wheels installation
 step 1
Locate the following items included in the hardware pack.
 step 2
Fix the wheel on the landing gear as the per picture showed.

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 step 3
Locate the landing gear on the fuselage and fix it with the hexagon socket head cap screw included in the
hardware pack.
 step 4
Install wheel pant as per pictures.
 step 5
Test fit the L.G. Lift Generator and his alignment with the fuselage.

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 step 6
Glue carefully the landing gear fillet with some drops of medium CA, as per picture.
 step 7
Repeat steps 3 to 6 for the other side of the landing gear.
Section 8 –electric motor installation
 step 1
Use the CA to fix well the motor box.
 step 2
According to the motor size to drill four holes on the motor box and the fuselage head, as the picture showed.
 step 3
Fix the M3 retaining nut in to the fuselage plywood and locate motor box with the M3 screws , as the
picture.

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 step 4
Locate the motor and fix it with the four M4 screws and retaining nuts in the hardware pack.
 step 2
Locate and fix the ESC and his switch as per picture.
 step 3
Glue with some drops of medium CA on side of the Velcro strip included in the hardware pack.

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Section 9 –cowl installation
 step 1
Apply a piece of masking tape on the line were you have to make the holes for the cowl fixing
screws, than mark the position as per the picture.
 step 2
Slide the cowling onto the fuselage and install the spinner back plate. Then apply another piece of
masking tape on the same line of the one applied before. Drill the location for the four self-tapping
screws using a 1.5mm drill bit.
 step 3
Attach the cowl using the four self-tapping screws, included in hardware pack, with a Phillips
screwdriver.

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 step 4
Fix carefully the prop and the spinner as per picture.
Section 10 –final radio installation
Install the receiver, two extension 100mm for aileron servos and the battery pack as per the picture.