THUNDER TIGER Floats 3025/4 Assembly Manual

JE6990/4

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4

Assembly Manual

Floats

This kit is guaranteed to be free from defects in material and workmanship at the date of purchase. It does
not cover any damage caused by use or modification. The warranty does not extend beyond the product
itself and is limited only to the original cost of the kit. By the act of building this user-assembled kit, the user
accepts all resulting in liability for damage caused by the final product. If the buyer is not prepared to
accept this liability, it can be returned new and unused to the place of purchase for a refund.

Warranty

Notice: Adult Super Vision Required

This is not a toy. Assembly and flying of this product requires adult supervision. Read through this
book completely and become familiar with the assembly and flight of this airplane. Inspect all parts
for completeness and damage. Browse www. thundertiger. com for customer service if you encounter
any problems.

Specifications:
Length: 33.46” (850mm)
Weight: 1.42lbs. (642g)

Floats

Many thanks for the purchase of the Floats. This set contains a pair of strong, lightweight floats molded in
special ABS plastic, together with all fittings required, water rudder and associated linkage. The floats is
designed for wooden high wing plane that you can convert to seaplane easily.
Please read the manual thoroughly and check the contents before you start the assembly. You will need
2mm,3mm,4.2mm,5mm(5/16”,1/8”,11/64”,13/64”) drill bits during assembling. Regarding tools and glues,
they are same as you used for the plane .

Introduction

12.Locate the Angled Brass Tubes and mount, install the
tubes in the mount. Place the Brass Tube Mount as
photo shown then drill 3mm(1/8”) hole through the
mount and to the float. Next enlarge the hole on float to
5mm(13/64”). Do the same procedure to install the
sleeve. Next secure the brass tube mount on the float
with the rest 3x15mm wood screw.

13.Drill a 3mm (1/8”) hole at the left side of the fuselage,
epoxy an angled brass tube in place. Next thread the
wire through the angled brass tube on the float, next
thread the wire through the brass tube on fuselage then
go to the servo compartment. Make a loop and circle to
the servo horn at outmost hole then clamp the tube. Do
the same way on the other wire.

14.Bend the Spring at two ends so it can hook to the
steering arm. Thread the other end of the two wires to the
springs same way to loop the brass tubes. Adjust the wires
and clamp the tubes so springs have the tension. Make
sure the water rudder works smoothly and same direction
as rudder.

Step vs C.G.

Flying Tips

During the slow taxing phase it is essential to hold in full up-elevator to keep the nose up. Taxi as slowly as possible to
avoid spraying and splashing. Use the rudder (i.e. the water rudder) for course correction only; the ailerons should only
be used to hold the model straight in a side-wind. Take-off must always be directly into wind; start by opening the throttle
slowly with full up-elevator held in. As soon as the model rises onto the step , i.e. when it is gliding on the underside of
the floats, the elevator must be returned to neutral. Allow plenty of time, i.e. more than you generally use on land. The
drag of floats is much higher than of a wheeled undercarriage. Always land in plenty of time, i.e. well before you run out
of fuel, as you will need a longer motor run than you are used to when flying from land in order to taxi the model back to
the bank. For the landing fly into wind as usual and flare the model with a higher angle of attack than usual. The waves
can be uncomfortably high, and the model will tend to bounce unless you are very careful.

“”

1.Refer to airplane safe cautions.

2.Nylon or fiberglass propeller is recommended.
Also check that there is sufficient clearance between the propeller tips and the top surface of the floats.

3.Only fly when engine is powerful and smoothly.

4.Do not fly on a flowing water like creeks or rivers.

5.Do not attempt to fly if there is any wildlife or people in the water.

6.Check the wind direction then choose a good location for flying. The wind can carry it back to the shore if
engine is quit.

7.If plane is stuck out on the water, do not attempt to swing to get it back as it is very dangerous and difficult. A good way

to get your plane back, retrieve the stalled or capsized model plane with a fishing rod that equips a real. Tie a tennis
ball on at least 12 lb. string. Of course, retrieve the plane with a boat is the best.

Safety Tips

N4

0

T

T

Tiger

89mm 3-1/2”()

10mm (3/8”)

Double check the balance point of your plane, refer to
the plane manual and make sure the C.G. position is
correct. To obtain this position first try moving the
receiver battery and then if needed, add some lead. The
step should be about 10mm (3/8”)after the C.G. Position.

2 3

Kit Contents:

Floats

Description Q'ty

2
4
1
9
1
1
1
1
1
1
4
3

Floats

5. Install the landing gear wire in the wood mount with
four 3x10mm wood screws and landing straps. You may
need to drill 2mm(5/64 ) pilot holes before screwing in
the wood screws. Also change the main landing gear
wires come with the kit. If wire can not fit the wood
mount then you can trim or change new wood mount.

”

ASSEMBLY:

6.Refer to the airplane C.G. and determine the location
of the mounting bracket. You will need to check the
length of the two landing gear block and make sure the
STEP of float is about 10mm(3/8 ) to the C.G. position.
Now you can find out the correct position for four
mounting brackets then make marks on the mounting

”

Float
Mounting Bracket (Left/2, Right/2)
Brass Tube Mount
Plastic Sleeve
Plug
Plug w/Rudder Bush
Steering Arm
Water Rudder
Rudder Shaft

2.9x13mm Rivet
2x5mm Brass Tube
Angled Brass Tube

1
2
9
2
4
4
8
8

2
4

2.8M Wire
Tension Spring
3x15mm Wood Screw
Carbon Tube
Mounting Strap
Landing Gear Wier

Wheel Collar
3x10mm Wood Screw

Landing Gear Wood Block
Torque Wood Block

Description Q'ty

Before assembling the float set we suggest to remove all the “flash” by using 200-grit sandpaper. The float
set is not necessary to paint. If you would like to paint the float and (or) other parts, this is the time to do it.
We do not recommend to paint the bottom of the floats. Please refer to the following points and carefully
proceed the painting procedure.
Wash all of the model with soap and water to remove any grease.
Sand the entire surface to be painted with wet 400 grit sandpaper.

(You may avoid sanding the aileron, elevator and rudder moving part if you wash them well).

Use any fuel resistant paint that you like, we have had good result with “ Isofan” , “ ABF” or two-

component polyurethane paint.
Test the paint on other ABS material before you paint on the float.
Make sure the paint and thinner will not melt or damage the ABS material.
Apply some drops of nitro fuel on the painted ABS sheet to make sure if the paint is fuel resistant.
Mask tape is needed for the painting job to cover the unpainted area.
Avoid to paint the glue area as CA may damage the paint and cause bad adhesion.
Make sure the linkage is smooth; if not ,remove the paint at the linkage area.
Always wear mask w/filter when doing the painting job as thinner and paint are harmful to your health.

8

3x3mm Set Screw

1. Measure the bottom fuselage where gonna install the
landing gear wood block. Includes the outer dimension
“A and inner dimension “B from the two sides of
fuselage.

” ”

C.G.

89mm(3-1/2”)

280~300mm

(11-1/32”~11-13/16”)

65mm(2-9/16”)

A B

10mm(3/8”)

7.Drill 5mm(13/64 ) holes on the marks at least 30mm
( 1-3/16 ) in depth. Disregard the molded dots on the
float as they might not at the same position as the marks
you made. Trial fit the plastic sleeve and make sure the
depth is just flush with the sleeve, remove the sleeves
and roughen the plastic sleeves with sandpaper(150 grit).
Glue all sleeves in place with epoxy. Note that the holes
are faced up. Make sure there is no epoxy inside the
hole of sleeve.

”

”

8.Sand the glue area of the plug and the hole on the float,
next epoxy the plugs in place. Note the plug w/Rudder
Bush will be at the left float which you will need to drill an
extra hole for the angles brass tube mount later.

9.Locate the Water Rudder, Rudder Shaft and Rivet.
Insert the rivet then use hammer to secure the rudder in
place. Note: The rivet has a hole on one end, suggest to
place a Phillips Screw Driver on the hole then slightly hit
the driver so the rivet will break evenly. Next hit the rivet
directly until water rudder is secured firmly but still can
swivel back.

2. Locate the wood block then use saw to cut away the
excess part base on the outer dimension“A Epoxy the
two torque wood block on the landing gear wood block
base on the inner dimension “B as shown.

” .

”

3.Drill 4.2mm (11/64 ) holes through the torque wood
mount center on the landing gear wood block groove at
two ends about 10mm(3/8 ) to the edge which depends
on the thickness of side fuselage. Note the two holes
are not in line with each other so two landing gear wires
could be installed in the groove.

”

”

4.Trim a “U cut right after the firewall so the landing
gear wood mount could be installed. Trial fit and trim the
U cut make sure the wood mount is level with the bottom
fuselage. Apply enough epoxy and glue the wood mount
in place.

”

1

2.6x8mm Wood Screw

B

A

B

A

10 Install the water rudder in the plug w/bush then
secure the Steering Arm in place with 2.6x8mm wood
screw.

11.Apply decals carefully as photo shown then secure
the mounting brackets in place with 3x15mm wood
screws. Note the orientation of the mounting brackets.
Next install the collars and carbon tubes as shown,
adjust the tube then secure the collars with eight 3x3mm
setscrews. Make sure there is no gap between the collar
and mounting bracket.