Seagull Models Savage Shock Cub User guide

ASSEMBLY MANUAL

Code : SEA 357

Specications:

Wingspan--------------- 102.0 in (259.0 cm).

Wing area--------------- 1802.7 sq.ins (1163.0 sq.dm).

Weight------------------- 21.0 lbs (9.6 kg).

Length------------------- 68.2 in (173.3 cm).

Engine/Motor size----- 35-55cc gasoline.

Radio--------------------- 7 channels with 8 servos.

1

SHOCK CUB 35-55cc

INTRODUCTION

ank you for choosing the SHOCK CUB 35-55cc ARTF by SG MODELS . e
SHOCK CUB 35-55cc 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. You will nd that
most of the work has been done for you already. e motor mount has been t-

ted and the hinges are pre-installed. Flying the SHOCK CUB 35-55cc 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 SHOCK CUB 35-55cc Use the

parts listing below to indentify all parts.

WARNING

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.

Instruction Manual.

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 ap­ply.

KIT CONTENTS

13

3

3

4

12

10

6

1

7

13

2

2

11

5

8

15 15

14

9

2

KIT CONTENTS

SEA 357 SHOCK CUB 35-55cc

HYPERSTOLAIRFOIL & HIGH

LIFT DEVICES

Please see below pictures.

1. Fuselage

2. Wing set (2)

3. Tail set (2)

4. Canopy and Window

5. Cowling

6. Wing tube

7. Wing tip

8. landing gear

9. Fuel tank

10. Tail wheel

11. Ep Motor box

12. Pushrod set

13. Wing struts (2)

14. Chair

15. Hyper-stolairfoil & high li devices (2)

ADDITIONAL ITEMS REQUIRED

� 35-55cc gasoline engine.
� Computer radio 7 channel with 8

servos.

� Glow plug to suit engine.
� Propeller to suit engine.
� Protective foam rubber for radio

system.

1.

M3x10mm

2.

3.

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.

.

4.

3

SHOCK CUB 35-55cc

Instruction Manual.

5.

6.

9.

Epoxy

10.

Epoxy

7.

8.

11.

12.

4

13.

1.

Flap control horn

Ailerons control horn

14.

15.

Use sandpaper to scu the bottom of the
aileron and ap control horns. Use a paper
towel and isopropyl alcohol to remove any
oils or debris from the control horns.

2.

Check the t of the control horns to the ai­leron and ap. ey should rest ush against
the control surface as shown.

INSTALL THE AILERONS

CONTROL HORN

Locate the aileron and ap control horns.
e taller control horn is used for the ailer­ons, and the shorter horn for the aps.

3.

5

SHOCK CUB 35-55cc

Instruction Manual.

Place low-tack tape 1/32 inch (1mm)
from the control horn slot. is will pre­vent epoxy from getting on the control
surface when the control horns are glued
in place.

4.

Remove the control horns from the
control surfaces. Apply epoxy to the slot
in the aileron and ap. Make sure the
epoxy gets into the slot for a good bond
between the surfaces and control horn.

6.

Epoxy

Before the epoxy fully cures, remove the
tape from around the control horn. is
will allow the epoxy to ow around the
control horn, creating a small let be­tween the control horn and surface for a
ished look and secure bond.

7.

5.

Epoxy

Apply epoxy to the area of the control
horns that st into the slots. Use enough
epoxy so the control horns will be fully
bonded to the ed surfaces.

INSTALL FLAP CONTROL HORN

Install the ap control horn using the
same method as same as the aileron con­trol horns.

1.

Fiberglass control horn

6

2.

Minimum servo spec.

Tor qu e : 122 oz-in (8.8 kg-cm) @ 6.0V;

139 oz-in (10.0 kg-cm) @ 7.4V

Epoxy

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.

3.

Flap control horn

INSTALLING THE AILERON SERVOS

1.

Place the servo between the mounting
blocks and space it from the hatch. Use a
pencil to mark the mounting hole loca­tions on the blocks.

3.

Use drill bit in a pin vise to drill the
mouting holes in the blocks.

2.

4.

Apply 2-3 drops of thin C/A to each
of the mounting holes. Allow the C/A to
cure without using accelerator.

7

SHOCK CUB 35-55cc

Instruction Manual.

5.

C/A glue

Use dental oss to secure the connec­tion so they cannot become unplugged.

6.

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.

10.

Secure the servo to the aileron hatch
using Phillips screwdriver and the screws
provided with the servo.

7.

Apply 1-2 drops of thin C/A to each of
the mounting tabs. Allow the C/A to cure
without using accelerator.

8.

11.

12.

C/A glue

8

Set the aileron hatch in place and use a
Phillips screw driver to install it with four
wood screws.

13.

M3x10mm

14.

2.

3.

4.

M3 clevis

140mm

M3 lock nut

162mm

AILERON PUSHROD INSTALLATION

Please see below pictures.

1.

INSTALLING THE FLAP SERVO

Repeat the procedure for the ap servo.

1.

INSTALLING THE FLAP PUSHROD

Repeat the procedure for the aileron
pushrod.

9

SHOCK CUB 35-55cc

1. 6.

175mm

2.

M3 clevis

3.

M3 lock nut

192mm

7.

Instruction Manual.

M3x10mm

4.

5.

8.

9.

10

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.

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.

1.

rottle servo

1.

3/32” Hole

.

2.

Trim and cut

2.

Elevator servo

Rudder servo

Elevator servo

rottle servo arm

Elevator servo arm

Rudder servo arm

Elevator servo arm

3.

.

Switch

INSTALLING THE ENGINE SWITCH

1.

Trim and cut

INSTALLING THE RECEIVER SWITCH

Install the switch into the precut hole in
the side, in the fuselage.

11

SHOCK CUB 35-55cc

Instruction Manual.

2.

Switch

INSTALLING THE MAIN LANDING

GEAR TO FUSELAGE

Please see below pictures.

1.

4.

5.

2.

3.

6.

.

7.

12

8. 12.

Epoxy

9. 13.

M3x15mm

10. 14.

11. 15.

13

SHOCK CUB 35-55cc

Instruction Manual.

16.

17.

20.

21.

18.

19.

22.

M3x15mm

23.

14

24. 28.

25. 29.

4x5mm

26. 30.

.

27. 31.

15

SHOCK CUB 35-55cc

32. 1.

Collar

Instruction Manual.

33.

34.

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.

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.

When satised with the alignment of the
stopper assembly tighten the 3 x 20mm ma­chine screw until the rubber stopper expands
and seals the tank opening. Do not over­tighten the assembly as this could cause the
tank to split.

.

16

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.

FUEL TANK INSTALLATION

1.

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.

MOUNTING THE ENGINE

Please see below pictures.

1.

4.

7mm

5.

2.

3.

6.

7.

17

SHOCK CUB 35-55cc

8. 11.

Balsa wood

Epoxy

9. 12.

Vent tube

Instruction Manual.

M5x90mm

Fuel pick up tube Fuel ll tube

Connect the lines from the tank to the
engine and muer. e vent line will
connect to 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.

10.

160mm

13.

14.

18

COWLING

Please see below pictures.

1.

2.

4.

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.

5.

3.

Tape the cowl to the fuselage using
low-tack tape.

2mm

6 .

19

SHOCK CUB 35-55cc

7.

M3x10mm

Because of the size of the cowl, it may be nec­essary to use a needle valve extension for the
high speed needle valve. Make this out of suf­cient length 1.5mm wire and install it into
the end of the needle valve. Secure the wire in
place by tightening the set screw in the side of
the needle valve.

Instruction Manual.

ELECTRIC POWER CONVERSION

Locate the items neccessary to install
the electric power conversion included
with your model.

1.

8.

9.

Recommend the items necessary to in­stall the electric power conversion parts
included with your model.

- Motor: 360 - 6000 Watts

- Propeller: 24x10 ~ 25x12

- ESC: 160A - 200A

- 12S Lipo

Attach the electric motor box to the re­wall centered with the cross lines drawn
on the electric motor box and rewall.
Using M5x30mm to secure the motor box
to the rewall. Please see pictures below.

2.

20

10.

3. 7.

Mark

4. 8.

7mm

5. 9.

5mm

6.

Attach the motor mount to the f ront of the
electric motor box using four 5mm blind
nut, four M5x30mm hex head bolts to se­cure the motor. Please see picture shown.

21

SHOCK CUB 35-55cc

Instruction Manual.

10.

11.

13.

7mm

M5x30mm and washers

14.

Blind nut

12.

5mm

en, use 7mm drill bit to enlarge the
holes on the electric motor box.

15.

M5x20mm

16.

Epoxy

22

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 mo­tor. Make sure the leads will not interfere
with the operation of the motor.

17.

160mm

20.

M3x10mm

21.

18.

19.

22.

M6 Nylon

23.

23

SHOCK CUB 35-55cc

24. 28.

Instruction Manual.

25.

26.

29.

M6 Nylon

INSTALLING THE SPINNER

Install the spinner backplate, propeller
and spinner cone.

1.

24

27.

e propeller should not touch any
part of the spinner cone. If it does, use a
sharp modeling knife and carefully trim
away the spinner cone where the propel­ler comes in contact with it.

2. 3.

HINGING THE ELEVATORS

Glue the elevator hinges in place using
the same techniques used to hinge the ai­lerons.

1.

INSTALL ELEVATOR CONTROL HORN

1.

ELEVATOR AND STABILIZER

INSTALLATION

1.

With the stabilizer held rmly in place,
use a pen and draw lines onto the stabi­lizer where it and the fuselage sides meet.
Do this on both the right and le sides
and top and bottom of the stabilizer.

Fiberglass control horn

2.

2.

Epoxy

Remove the stabilizer. Using the lines
you just drew as a guide, carefully remove
the covering from between them using a
modeling knife.

25

SHOCK CUB 35-55cc

Instruction Manual.

3.

When cutting through the covering

to remove it, cut with only enough pressure
to only cut through the covering itself. Cut­ting into the balsa structure may weaken
it.

Using a modeling knife, carefully remove
the covering that overlaps the stabilizer
mounting platform sides in the fuselage.
Remove the covering from both the top
and the bottom of the platform sides.

4.

5.

6.

Carefully turn the model over and apply
epoxy to the exposed wood on the bot­tom of the stabilizer. Slide the stabilizer
back into position.

Slide the stabilizer partially into the
fuselage so the wood at the center is ex­posed. Mix 1/2 ounce (15ml) of 30-min­ute epoxy. Use an epoxy brush to apply
the epoxy to the exposed wood on the
top of the stabilizer.

Use care not to get epoxy on the eleva­tor joiner wire.

7.

Once the alignment of the stabilizer
has been verid, use a paper towel and
isopropyl alcohol to remove any excess
epoxy from the fuselage and stabilizer.
Allow the epoxy to fully cure before pro­ceeding.

26

If you nd epoxy on the joiner wire, use
the paper towel and isopropyl alcohol to
clean the joiner.

Fit the elevator so the leading edge s
tightly against the trailing edge of the sta­bilizer.

8.

Use a pin vise and 1/16-inch (1.5mm)
drill bit to drill a hole in the center of
each hinge slot to allow the CA to wick
into the hinge. Drill holes in both the ele­vators and stabilizer surfaces at this time.
Place a T-pin in the center of each hinge
along side the slot in the hinge. is will
help center the hinge when it is placed in
the elevators. Slide the hinges into posi­tion with the T-pin resting against the
edge of the control surface.

11.

Check the t of both elevators at this
time. Once checked, remove the eleva­tors.

12.

9.

Fit the elevator into position on the sta­bilizer. Guide the joiner wire and hinges
into position.

10.

Fit the elevators back into position. Re­move the T-pins and slide the elevators
tightly against the stabilizer. Use a paper
towel and isopropyl alcohol to remove
any excess epoxy before it begins to cure.

13.

27

SHOCK CUB 35-55cc

Instruction Manual.

Flex the elevator slightly, making sure
to keep the gap between the elevator and
stabilizer as narrow as possible. Saturate
each of the hinges using thin CA. Apply
CA to the top of the hinges.

14.

C/A glue

Gently pull on the ed and moving sur­face to make sure the hinges are glued
securely. If not, reapply thin CA to any
hinges that are found loose.

INSTALL RUDDER CONTROL HORN

Repeat steps to install the rudder control
horn as same as steps done for ailerons.

1.

Fiberglass control horn

2.

15.

Flex the control surface through its
range of motion a few 28. times to break­in the hinges. is will reduce the initial
load on the servo when the surface is st
actuated.

16.

3.

INSTALLING VERTICAL STABILIZER

1.

28

2.

C/A glue

read one clevis and M2 lock nut on
to each elevator control rod. read the
horns on until they are ush with the
ends of the control rods.

Elevator and rudder pushrods assembly
as pictures below.

2.

3.

ELEVATOR PUSHROD

INSTALLATION

Install the elevator control horn using
the same method as with the aileron con­trol horns.

Locate items necessaryto install rudder
pushrod.

3.

910mm

4.

Position the elevator control horn on
the both side of elevator.

1.

5.

29

SHOCK CUB 35-55cc

Instruction Manual.

RUDDER PUSHROD

INSTALLATION

Repeat steps as same as steps done for
elevator.

1.

2.

MOUNTING THE TAIL WHEEL

Locate items necessary to install tail wheel.

1.

M3x20mm

M3x10mm

2.

3.

4.

5.

3.

30

4.

8.

5.

6.

9.

10.

2mm

7.

11.

M3x10mm

M3x10mm

31

SHOCK CUB 35-55cc

Instruction Manual.

12.

13.

16.

INSTALL BRACING WIRE AND METAL

BRACKET AT THE TAIL

TOP VIEW.

1.

14.

15.

2.

3.

M3x15mm

32

4. 9.

M3x20mm

5.

6.

7.

10.

BOTTOM VIEW.

11.

8.

12.

33

SHOCK CUB 35-55cc

13. 1.

14.

15.

Instruction Manual.

Receiver

Two batteries

INSTALL THE WINDOW

Parts requirement.See pictures below.

16.

1.

2.

34

INSTALLING BATTERY - RECEIVER

Plug the servos leads and the switch
lead into the receiver. Plug the battery
pack lead into the switch also.

Wrap the receiver and battery pack in
the protective foam rubber to protect
them from vibration.

3.

7.

4.

5.

8.

9.

Epoxy

6.

10.

Epoxy

35

SHOCK CUB 35-55cc

Instruction Manual.

11.

12.

15.

16.

13.

14.

17.

18.

36

19.

20.

2.

3.

M2x8mm

21.

INSTALLATION CANOPY AND CHAIR

Locate items necessary to install canopy
and chair.

1.

4.

Epoxy

5.

37

SHOCK CUB 35-55cc

Instruction Manual.

6.

7.

2.

Epoxy

3.

INSTALLATION WING STRUTS

Loacte the items for this section of the
manual.

1.

M3x15mm

4.

M3x15mm

5.

38

6.

10.

7.

8.

11.

12.

Front

M3x15mm Socket Head Cap ScrewDiagonal brace

Nylon washer

Nylon washer

M3 locknut

9.

13.

39

SHOCK CUB 35-55cc

14. 18.

15. 19.

Instruction Manual.

1

1

2

3

16. 20.

1

108mm

2

167mm

2

17. 21.

1

40

2

22.

23.

26.

1

2

INSTALL WING TIP

3

Locate items necessary to install.

24.

140mm

1.

3

2.

25.

3

M3x10mm

41

SHOCK CUB 35-55cc

3. 7.

Instruction Manual.

4.

5.

ATTACHMENT WING- FUSELAGE.

M3x10mm

Attach the aluminium tube into fuselage.

1.

Wing tube

M3x10mm

2.

42

6.

3.

7.

4.

5.

M4x15mm

M4x15mm

8.

M3x15mm

9.

6.

10.

Wing bolt

43

SHOCK CUB 35-55cc

Instruction Manual.

11.

12.

15.

16.

13.

14.

Open the window

M3x10mm

44

M3x15mm

APPLY THE DECALS

1) If all the decals are precut and ready to
stick. Please be certain the model is clean
and free from oily ngerprints and dust.
Position decal on the model where de­sired, using the photos on the box and aid
in their location.

2) If all the decals are not precut, please
use scissors or a sharp hobby knife to cut
the decals from the sheet. Please be cer­tain the model is clean and free from oily
ngerprints and dust. Position decal on
the model where desired, using the pho­tos on the box and aid in their location.

BALANCING

*If possible, rst attempt to balance the
model by changing the position of the
receiver battery and receiver. If you are
unable to obtain good balance by doing
so, then it will be necessary to add weight
to the nose or tail to achieve the
proper balance point.

With the wing attached to the fuselage,
all parts of the model installed ( ready to
y), and empty fuel tanks, hold the mod­el at the marked balance point with the
stabilizer level.

Li the model. If the tail drops when
you li, the model is “tail heavy” and you
must add weight* to the nose. If the nose
drops, it is “nose heavy” and you must
add weight* to the tail to balance.

An important part of preparing the air­cra for ight is properly balancing the
model.

1) Attach the wing panels to the fuselage.
Make sure to connect the leads from the
aileron to the appropriate leads from the
receiver. Make sure the leads are not ex­posed outside the fuselage before tight­ening the wing bolts. Your model should
be ight-ready before balancing.

2) e recommended Center of Gravity
(CG) location for your model is (120mm)
back from the leading edge at the center
of the wing.

3) When balancing your model, make
sure it is assembled and ready for ight.
Support the plane upright at the marks
made on the wing with your gers or a
commercially available balancing stand.
is is the correct balance point for your
model.

45

SHOCK CUB 35-55cc

1.

Instruction Manual.

120mm

CONTROL THROWS

Ailerons:

High Rate :
Up : 70 mm
Down : 70 mm
Low Rate :
Up : 40 mm
Down : 40 mm

Elevator:

High Rate :
Up : 80 mm
Down : 80 mm
Low Rate :
Up : 40 mm
Down : 40 mm

Rudder:

High Rate :
Right : 100 mm
Le : 100 mm
Low Rate :
Right : 60 mm
Le : 60 mm

Flap:

Mid : 30 mm
Full : 80 mm

46

40-80mm
40-80mm

Fuselage

Wing

60-100mm
60-100mm

40-70mm
40-70mm

30mm

80mm

47

SHOCK CUB 35-55cc

FLIGHT PREPARATION PREFLIGHT CHECK

Instruction Manual.

Check the operation and direction
of the elevator, rudder, ailerons and
throttle.

A) Plug in your radio system per the
manufacturer’s instructions and turn
everything on.

B) Check the elevator rst. Pull
back on the elevator stick. e eleva­tor halves should move up. If it they do
not, ip the servo reversing switch on
your transmitter to change the direc­tion.

C) Check the rudder. Looking from
behind the airplane, move the rudder
stick to the right. e rudder should
move to the right. If it does not, ip
the servo reversing switch on your
transmitter to change the direction.

1) Completely charge your trans­mitter and receiver batteries before
your rst day of ying.

2) Check every bolt and every glue
joint in the SHOCK CUB 35-55cc to en-
sure that everything is tight and well
bonded.

3) Double check the balance of the
airplane. Do this with the fuel tank
empty.

4) Check the control surfaces. All
should move in the correct direction
and not bind in any way.

5) If your radio transmitter is
equipped with dual rate switches
double check that they are on the low
rate setting for your rst few ights.

D) Check the throttle. Moving the
throttle stick forward should open the
carburetor barrel. If it does not, ip the
servo reversing switch on your trans­mitter to change the direction.

E) From behind the airplane, look
at the aileron on the right wing half.
Move the aileron stick to the right.
e right aileron should move up and
the other aileron should move down.
If it does not, ip the servo reversing
switch on your transmitter to change
the direction.

We wish you many safe and enjoyable ights

6) Check to ensure the control sur­faces are moving the proper amount
for both low and high rate settings.

7) Check the receiver antenna.
It should be fully extended and not
coiled up inside the fuselage.

8) Properly balance the propeller.
An out of balance propeller will cause
excessive vibration which could lead
to engine and/or airframe failure.

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with your SHOCK CUB 35-55cc.

If you have any queries, or are interested in our products,

please feel free to contact us

Factory : 12/101A - Hamlet 4 - Le Van Khuong Street - Dong anh Ward -

Hoc Mon District - Ho Chi Minh City - Viet Nam.

Oce : 62/8 Ngo Tat To Street - Ward 19 - Binh anh District - Ho Chi Minh

City - Viet Nam

Phone : 848 - 86622289 or 848- 36018777
Website : www.SeagullModels.com
Email : [email protected]
Facebook : www.facebook.com/SeaGullModels.

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