Legend Hobby SEA365 User manual

1
ASSEMBLY MANUAL
Code : SEA365
- 1/6 Scale.
- Wing Span: 82.5” GIANT SCALE.
- Wing Area approx 1086 square inches.
- Length: 62”.
- Flying Weight: Approx 20-23 lbs.
- Radio: 6-12+ channels with 9+ Servos .
- Depending on your custom/preferred set up.
(rottle, Choke if using Gas/Glow Engine, 2-Elevator, 1-2 Rudder/Nose Steering, 2-Ailerons,
2-Flaps, 1 Speed Brake, 1 Landing Gear if Pneumatic, 2-3 Mini Servos For Gear Doors)
- Recommended Gas Engine: Stinger 40cc Twin with Scale T-28 Custom Muers or Electric
Equivalent.
- Note: Customer may choose to use other 35cc-50cc Gas Engines but will need to shorten nose
strut and move retract back to clear Engine Cylinder Head. We designed this model around the
Stinger 40cc Twin Gas Engine or Electric Motors to preserve the scale gear stance and have
Scale Functional Exhaust.
- Cowling Diameter Approx 9.25 Inches.
- Does not include: retractable landing gear, scale wheels, radio, engine/motor, muers,
adhesives, pilot gures, or fuel line.

1/6 Giant Scale North American T-28 82.5” ARF 35-60cc Instruction Manual.
2
ank you for choosing the LEGEND HOBBY 1/6 Giant Scale North American T-28 82.5”
ARF 35-60cc manufactured by SG MODELS. e 1/6 Giant Scale North American T-28 82.5”
ARF 35-60cc was designed with the intermediate/advanced sport yer in mind. It is a semi scale
airplane which is easy to y and quick to assemble. e airframe is conventionally built using
balsa, plywood to make it stronger than the average ARTF, yet the design allows the aeroplane to
be kept light for its size. You will nd that most of the work has been done for you already. e
control surfaces have been pre-tted with hinges are ready to be nal glued into place. Flying
the LEGEND HOBBY 1/6 Giant Scale North American T-28 82.5” ARF 35-60cc is simply a joy.
is instruction manual is designed to help you build a great ying aircra. Please read this
manual throughly a few time before starting assembly of your 1/6 Giant Scale North American
T-28 82.5” ARF 35-60cc. Use the parts listing below to indentify all parts.
Please be aware that this model aircra is not a toy and if assembled or used incorrectly
it is capable of causing injury to people or property. WHEN YOU FLY THIS AIRCRAFT
YOU ASSUME ALL RISK & REPONSIBILITY.
If you are inexperienced with basic R/C ight we strongly recommend you contact your R/C
supplier and join your local R/C model Flying Club. R/C Model Flying Clubs oer a variety of
training procedures designed to help the new pilot follow a more enjoyable and successful path
to R/C ight. ey will also be able to advise on any insurance and safety regulations that may
apply.
INTRODUCTION
WARNING !
LEGEND HOBBY 86’’ A-1 SKYRAIDER KIT CONTENTS
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2
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3
3
5
6
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8
4

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KIT CONTENTS
SEA365 1/6 Giant Scale North American
T-28 82.5” ARF 35-60cc
1. Fuselage
2. Wing set (2pcs)
3. Tail set (2pcs)
4. Cockpit, Pilot and Canopy
5. Cowling
6. Wing tube
7. Fuel tank
8. Pushrod set
ADDITIONAL ITEMS REQUIRED
TOOLS & SUPPLIES NEEDED
in cyanoacrylate glue.
Medium cyanoacrylate glue.
30 minute epoxy.
5 minute epoxy.
Hand or electric drill.
Assorted drill bits.
Modelling knife.
Straight edge ruler.
2mm ball driver.
Phillips head screwdriver.
220 grit sandpaper.
90° square or builder’s triangle.
Wire cutters.
Masking tape & T-pins.
read-lock.
Paper towels.
�35-60cc Engine or Electric Motor
and ESC.
�Computer radio 6-12+ channel
with 9+ servos.
�Spark plug to suit engine.
�Propeller to suit engine.
�Protective foam rubber for radio
system.
INSTALL THE AILERONS
1.
2.
3.
Epoxy
Use a small piece of rough sandpaper to
scu the hinges for better epoxy adhesion.
Do this to all aileron hinges.
Remove the ailerons from the wing and
remove the hinges.
Apply epoxy to each hinge where it will
be inserted into the ailerons. Tip: Apply
some petroleum jelly to the metal pin
hinge area to keep epoxy from interfering
with smooth operation of hinge.
Please see pictures below.

1/6 Giant Scale North American T-28 82.5” ARF 35-60cc Instruction Manual.
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INSTALL THE AILERONS
CONTROL HORN
Fiberglass control horn
1.
5.
7.
6.
8.
4.
Insert all four hinges in the ailerons at
this time. Make sure hinges move up and
down in right direction and not side to
side !
Be sure to test the aileron hinges once
you insert them. Ensure that the hinge
pockets line up, and that the hinges move
freely before the epoxy dries.
Check the t of the aileron to the wing.
e top of the ailerons will align to the
top of the wing. Make sure movement is
smooth and bind free.
We prefer 30-minute epoxy to allow
enough working time during the hinge
installation.
Apply epoxy into each of the holes in the
ailerons using a spare piece of pushrod
wire or toothpick.
Make sure to use enough epoxy so it
securely adheres the hinge to the surfaces.
Do not use an excessive amount of epoxy
when gluing the hinges so that it expels
from the hinge area.
Epoxy
Epoxy

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Ailerons control horn
Epoxy
2.6.
3.
4.
5.
INSTALLING THE AILERON SERVOS
1.
Because the size of servos dier, you
may need to adjust the size of the precut
opening in the mount. e notch in the
sides of the mount allow the servo lead to
pass through.
Place the servo between the mounting
blocks and space it from the hatch. Use a
pencil to mark the mounting hole loca-
tions on the blocks.
Epoxy
Minimum servo spec.
Torque : 6.0V: 157.00 oz-in (11.31 kg-cm)
7.4V: 179.00 oz-in (12.89 kg-cm)

1/6 Giant Scale North American T-28 82.5” ARF 35-60cc Instruction Manual.
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Use dental oss or heat shrink tubing
to secure the connection between the
servo and extension wire so they cannot
become unplugged accidentally.
C/A glue
4.
5.
Use drill bit in a pin vise to drill the
mouting holes in the blocks.
Apply 2-3 drops of thin C/A to each of
the mounting holes. Allow the C/A to
cure without using accelerator.
2.
3.
Secure the servo to the aileron hatch
using a proper driver and the screws
provided with the servo.
Apply 2-3 drops of thin C/A to each of
the mounting aileron hatch mounting
tabs in the wing. ***Allow the C/A to cure
without using accelerator.***
Remove the string from the wing at the
servo location and use the tape to attach it
to the servo extension lead. Pull the lead
through the wing and remove the string.
C/A glue
6.
7.
1.5mm

7
8 .
9.
10.
Set the aileron hatch in place and use a
Phillips screw driver to install it with four
wood screws.
3x10mm
11.
AILERON PUSHROD INSTALLATION
Please see pictures below.
3.
12.
1.
2.
60mm
M3 clevis M3 lock nut

1/6 Giant Scale North American T-28 82.5” ARF 35-60cc Instruction Manual.
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Attach the ap servo to the ap servo
cover. Center the ap servo (or set the
values to 0 for both up and down) and in-
stall the servo arm perpendicular to the
servo centerline. e clevis will attach to
the arm 13/16 inches (21mm) from the
center of the arm.
3.
4.
Attach the ap linkage to the control
horn. Slide the clevis retainer over the
forks of the clevis.
1.
2.
90mm
M3 clevis M3 lock nut
Use a pin vise and 3/32-inch (2mm)
drill bit to clear the paint from the ap
control horn.
5.
7.
6.
Route the servo lead for the ap servo
out at the root of the wing. Connect the
ap servo to the radio system. With the
radio system on, place the ap servo into
position.
Attach the clevis to the ap servo arm.
Please see pictures below.
INSTALLING THE FLAP PUSHROD

9
8.
Adjust the linkage so the ap is in the
mid-ap position. It may take a few tries
to properly adjust the linkage.
9.
Once adjusted, make sure all clevis re-
tainers are in position. Apply a drop of
threadlock near the clevis, then tighten
the nut against the clevis to keep the
linkage from changing length inside the
wing.
10.
3x10mm
12.
Set the ap control at the transmitter to
the down ap position. Adjust the ap
travel at the transmitter until it matches
the control throws listed in this manual.
13.
Trim the ap linkage cover using a
hobby knife, hobby scissors and some
ne sandpaper as needed.
11.

1/6 Giant Scale North American T-28 82.5” ARF 35-60cc Instruction Manual.
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16.
14.
Fit the ap linkage cover into position.
Check the operation of the ap to make
sure the cover does not interfere with the
ap linkage.
Use canopy glue to attach the cover to
the wing. Use low-tack tape to keep the
cover in position until the adhesive fully
cures. Blue painters tape works well !
15.
1.
Epoxy
INSTALLING ROBART
LANDING GEAR
ROBART landing gear are not included.
Please study images below for proper instal-
lation. You may install electric or pneumatic
gear. Fuselage has accommodations for both.
Robart150E MAIN GEAR 150ESP
2.
3.
Attach hinge to front gear fairing and
wing.
Epoxy

11
5.
4.
6.
7.
8.
Epoxy
11.
Install Main Retractable Landing Gear.
9.
10.
Epoxy

1/6 Giant Scale North American T-28 82.5” ARF 35-60cc Instruction Manual.
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12.
13.
14.
15.
16.
17.
18.
M3x20mm M4x4mm
19.

13
20.
21.
22.
23.
24.
25.
26.
27.
M4x4mm
M3x12mm

1/6 Giant Scale North American T-28 82.5” ARF 35-60cc Instruction Manual.
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31.
28.
29.
30.
32.
33.
34.
35.
M3x12mm
C/A glue

15
43.
Insert gear door control horn tab into
hole.
36.
37.
32mm
38. 45mm
39.
40.
41.
42.
17mm

1/6 Giant Scale North American T-28 82.5” ARF 35-60cc Instruction Manual.
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45.
47.
48.
49.
46. 50.
51.
44.
Epoxy
Apply epoxy glue to parts.
Epoxy
Epoxy

17
52.
53.
M2x15mm
54.
55.
56.
57.
58.
M2x10mm
59.

1/6 Giant Scale North American T-28 82.5” ARF 35-60cc Instruction Manual.
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60.
61.
62.
63.
2.
1.
- Locate items necessary to install Sprin
Landing Gear.
You use this fork set JP ER-150 100
Retracts Rotating 90
INSTALLING RETRACTABLE
LANDING GEAR
3.

19
4.
5.
6.
7.
8.
9.
10.
11.
30mm
Epoxy
M3x20mm

1/6 Giant Scale North American T-28 82.5” ARF 35-60cc Instruction Manual.
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12.
13.
14.
15.
16.
17.
18.
19.
M3x12mm
M3x10mm