SG Models SEA375 User manual

1
ASSEMBLY MANUAL
Specications:
Wingspan------------ 108 in------------------- 273.5 cm.
Wing area------------ 1988.0 sq.ins---------- 128.3 sq.dm.
Weight---------------- 25.6 lbs----------------- 11.6 kg.
Length---------------- 71.5 in------------------ 181.5 cm.
Engine---------------- 40 - 60cc.
Motor----------------- 360 - 6000w.
Radio----------------- 6 channels with 6 servos.
Code : SEA375

Pietenpol Air Camper replica J3 airplane 108” wingspan, 40-60cc Instruction Manual.
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ank you for choosing the Pietenpol Air Camper replica J3 airplane 108” wingspan,
40-60cc ARTF by SG MODELS . e Pietenpol Air Camper replica J3 airplane 108” wing-
span, 40-60cc 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 convention-
ally built using balsa, plywood to make it stronger than the average ARTF, yet the design
allows the aeroplane to be kept light. You will nd that most of the work has been done
for you already. e motor mount has been tted and the hinges are pre-installed. Fly-
ing the Pietenpol Air Camper replica J3 airplane 108” wingspan, 40-60cc is simply a joy.
is instruction manual is designed to help you build a great ying aeroplane. Please
read this manual throughly before starting assembly of your Pietenpol Air Camper replica
J3 airplane 108” wingspan, 40-60cc Use the parts listing below to indentify all parts.
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 on his way to successful R/C
ight. ey will also be able to advise on any insurance and safety regulations that may ap-
ply.
Please be aware that this aeroplane is not a toy and if assembled or used incorrectly it is
capable of causing injury to people or property. WHEN YOU FLY THIS AEROPLANE
YOU ASSUME ALL RISK & REPONSIBILITY.
INTRODUCTION
WARNING
KIT CONTENTS
2
2
2
3
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35
7
9
8
6
10
12
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11

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KIT CONTENTS
SEA 375 Pietenpol Air Camper
replica J3 airplane 108” wingspan,
40-60cc
1. Fuselage
2. Wing set (3)
3. Tail set (2)
4. Cockpit, Pilot and canopy
5. Cowling
6. Wing tube
7. landing gear
8. Fuel tank
9. Tail wheel
10. Ep Motor box
11. Pushrod set
12. Wing struts
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.
�40-60cc gasoline engine.
�Computer radio 6 channel with 6
servos.
�Glow 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..

Pietenpol Air Camper replica J3 airplane 108” wingspan, 40-60cc 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

5
Ailerons control horn
Epoxy
Epoxy
2.6.
3.
4.
5.
INSTALLING THE AILERON SERVOS
1.
20.0
2.
Minimum servo spec.
Torque : 6.0V: 157.00 oz-in (11.31 kg-cm)
7.4V: 179.00 oz-in (12.89 kg-cm)
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.

Pietenpol Air Camper replica J3 airplane 108” wingspan, 40-60cc Instruction Manual.
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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.
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.
3.
4.
Use dental oss to secure the connec-
tion so they cannot become unplugged.
Secure the servo to the aileron hatch
using Phillips screwdriver and the screws
provided with the servo.
5.
6.
7.
C/A glue
Apply 1-2 drops of thin C/A to each of
the mounting tabs. Allow the C/A to cure
without using accelerator.
C/A glue
8.
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.
9.

7
Set the aileron hatch in place and use a
Phillips screw driver to install it with four
wood screws.
AILERON PUSHROD INSTALLATION
Please study images below.
M3x10mm
12.
4.
13.
1.
2.
3.
11.
10.
160mm
3x12mm

Pietenpol Air Camper replica J3 airplane 108” wingspan, 40-60cc Instruction Manual.
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Install the rubber grommets and brass
collets into all servos. Test t the servos
into the fuselage servo mounts.
Secure the servos with the screws
provided with your radio system.
Insert the switch into the pre-cut hole
in the fuselage
1.
2.
3/32” Hole
1.
2.
Rudder servo
Elevator servo
Elevator servo arm
Elevator servo arm
INSTALLING THE ENGINE SWITCH
.
Switch
3.
Minimum servo spec.
Torque : 6.0V: 157.00 oz-in (11.31 kg-cm)
7.4V: 179.00 oz-in (12.89 kg-cm)
.
INSTALLING THE FUSELAGE SERVOS
.
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.
5.
Elevator servo
Rudder servo arm

9
.
INSTALLING THE MAIN LANDING
GEAR TO FUSELAGE
Please study images below.
1.
2.
M3x15mm
3.
4.
5.
6.
7.
8.
ead locker glue

Pietenpol Air Camper replica J3 airplane 108” wingspan, 40-60cc Instruction Manual.
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9.
10.
11.15.
12.16.
13.
14.
M3x12mm

11
17.21.
18.22.
19.23.
20.24.
M4x5mm

Pietenpol Air Camper replica J3 airplane 108” wingspan, 40-60cc Instruction Manual.
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25.
INSTALLING THE STOPPER
ASSEMBLY
Using a modeling knife, carefully cut
o the rear portion of one of the 3 nylon
tubes leaving 1/2” protruding from the
rear of the stopper. is will be the fuel
pick up tube.
Using a modeling knife, cut one length
of silicon fuel line. Connect one end of
the line to the weighted fuel pick up and
the other end to the nylon pick up tube.
1.
Carefully bend the second nylon tube up at
a 45º angle. is tube is the vent tube.
Test t the stopper assembly into the tank.
It may be necessary to remove some of the
ashing around the tank opening using a
modeling knife. If ashing is present, make
sure none falls into the tank.
When satised with the alignment of the
stopper assembly tighten the 3 x 20mm ma-
chine screw until the rubber stopper expands
and seals the tank opening. Do not overtight-
en the assembly as this could cause the tank
to split.
With the stopper assembly in place, the
weighted pick-up should rest away from the
rear of the tank and move freely inside the
tank. e top of the vent tube should rest just
below the top of the tank. It should not touch
the top of the tank.
Slide the fuel tank into the fuselage. Guide
the lines from the tank through the hole in
the ewall.
You should mark which tube is the vent
and which is the fuel pickup when you attach
fuel tubing to the tubes in the stopper. Once
the tank is installed inside the fuselage, it may
be dicult to determine which is which.
2.
FUEL TANK INSTALLATION
1.

13
3.
Fuel pick up tube Fuel ll tube
Vent tube
Connect the lines from the tank to the
engine and muer. e vent line will
connectto the muer and the line from
the clunk tothe carburetor.
Blow through one of the lines to ensure
the fuel lines have not become kinked inside
the fuel tank compartment. Air should ow
through easily.
1.
MOUNTING THE ENGINE
Please study images below.
2.
Locate the engine mounting in position
on the rewall. Use a 2.5mm drill bit to drill
the holes necessary to mount your particular
engine choice.
3.
4.
5.
6.
2.5mm
6mm

Pietenpol Air Camper replica J3 airplane 108” wingspan, 40-60cc Instruction Manual.
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7.
8.
9.
Inside view of the gas engine, carb, connector.
11.
12.
13.
10.14.
M6x100mm
ead locker glue

15
15.
16.
17.
18.
19.
Pushrod wire
Ignition Modude
Connect ignition module to pickup line of
engine. Secure with Safety Clip, safety wire,
tape or other method. Ensure the plugs
will not come apart from vibration or light
tension.
Secure ignition wire with nylon ties as
necessary.
20.
21.
200mm

Pietenpol Air Camper replica J3 airplane 108” wingspan, 40-60cc Instruction Manual.
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25.
26.
27.
24.
Move the throttle stick to the closed
position and move the carburetor to
closed.
Use a 4x5mm hex wrench to tighten the
screw that secures the throttle pushrod
wire. Make sure to use threadlock on the
screw so it does not vibrate loose.
28.
22.
23.
Epoxy
4x5mm

17
29.
Reinstall the servo horn by sliding the
connector over the pushrod wire. Center
the throttle stick and trim and install the
servo horn perpendicular to the servo
center line.
COWLING
Please study images below.
1.
2.
3.
4.
5.
Tape the cowl to the fuselage using
low-tack tape.
6.

Pietenpol Air Camper replica J3 airplane 108” wingspan, 40-60cc Instruction Manual.
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7.
8.
Use a drill and drill bit to drill the holes
for the cowl mounting screws. Make
sure the cowl position is correct before
drilling each hole.
Install the muer and muer extension
onto the engine and make the cutout in
the cowl for muer clearance. Connect
the fuel and pressure lines to the carbu-
retor, muer and fuel ler valve. Secure
the cowl to fuselage using the M3x10mm
socket head screws.Putting a small length
of silicon fuel tube under the head of the
screw helps with vibration.
9.
Loctite
3x10mm
10.
11.
12.
13.

19
ELECTRIC POWER CONVERSION
Locate the items neccessary to install
the electric power conversion included
with your model.
1.
Recommend the items necessary to
install the electric power conversion parts
included with your model.
Locate the engine mounting in position
on the rewall. Use a 5mm drill bit to drill
the holes necessary to mount your particular
motor choice.
- Motor: 360 - 6000 Watts
- Propeller: 24x10 ~ 26x8
- ESC: 160A - 200A
- 12S Lipo
2.
3.
M5x30mm and washers
en, use 5.2mm drill bit to enlarge the
holes on the electric motor box.
4.
5.
6.
5.2mm
5mm

Pietenpol Air Camper replica J3 airplane 108” wingspan, 40-60cc Instruction Manual.
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Attach the motor mount to the front
of the electric motor box using four 5mm
blind nut, four M5x25mm hex head bolts
to secure the motor. Please see picture
shown.
7.
8.
9.
Epoxy
Attach the speed control to the side
of the motor box using two-sided tape
and tie wraps. Connect the appropriate
leads from the speed control to the mo-
tor. Make sure the leads will not interfere
with the operation of the motor.
11.
10.
200mm
12.
13.
Battery
M5x25mm