No.5550

WARRANTYThunder Tiger guarantees this model kit to be free from defects in both material and workmanship. The total monetary value under warrant will in no case exceed the cost of the original kit purchased. This warranty does not cover any components damaged by use or modification. Part or parts missing from this kit must be reported within 60 days of purchase. No part or parts will be sent under warranty without proof of purchase.To receive part or parts under warranty, the service center must receive a proof of purchase and/or the defective part or parts. Should you find a defective or missing part, contact the authorized Thunder Tiger Service/Distributor nearest you.

WARNINGThis Racing Yacht’s parts and its constructiontools can be deadly weapons. Always exerciseextreme caution when using this product. Improper operations may cause personal and/or property damage. Thunder Tiger and its

distributor have no control over damages

resulting from shipping, improper construc-tion, or improper usage. Thunder Tiger assumes and accepts no responsibility for personal and/or property damages resulting form the use of improper building materials, equipment, and opera-tions. By the act of assembling this product, the user accepts all resulting liability. If the buyer is not prepared to accept this liability, then he/she should return this kit in new, unassembled, and un used condition to the place of purchase.

Notice This is not a toy. Assembly and operating of this boat requires adult supervision.

INTRUCTION MANUAL

Introduction

Items Required for Assembly

Radio

Winch Servo

Battery

01

Specifications:Length: 58mm 2.3”Width: 28mm 1.2”Height: 52mm 2.1”Weight: 120g 0.27”Speed: 0.28s/60o

Torque: 9.5kg-cm at 4.8V 11kg-cm at 6V

Introduction of Thunder Tiger Sail Winch Servo. This servo is specially design for Sail Yacht that torque is up to 11kg-cm, the speed is at 0.28sec/60° and max. rotation at 2 turns (720o). Standard quarter size with water proof seal between cases. All plastic gears. Comes with drum and mounting hardware.Fits to most sailing yachts in the market.

AcePower NiMH 3600mAh 4.8V Battery Pack is recommended. High capacity for long time use and perfect fit in the radio compartment.

No.8141

No.8501

No.2980

A 2 CH surface radio system w/one Sail Winch Servo and one STD servo is reguired.ACE Nautical Commander is highly recommended(No.8501).

Features:● Switch on Alarm● Low Battery Alarm● LED Power Indicator● Servo Reversing Switch● EPA for Throttle● Digital Trim Lever● 3 Position Switch for CH6● 270 degree Trim Knob for CH7● CH4 & CH5 Slide Lever for Auxiliary Function

Thank you for your purchase of the Thunder Tiger 1/22.5 scale racing yacht. This yacht is both good for indoor display and outdoor sailing. With proper care taken during assembly, it will provide you good performance and long servicelife. Please contact Thunder Tiger authoized distributor for tech support or customer service if you encounter any problem.

Clear a place on your workbench or table, and let's begin.

Tools Required for Assembly

Needle NosePliers

Hobby KnifePhillips

Screwdriver, MedCA Instant GlueScissors

Sandpaper (#200 grit) Rubbing Alcohol

● Read all directions thoroughly before assembly.● Check the parts against the parts drawing on page 3-4.● When mixing epoxy, apply equal volume from two bottles.● When tighten screws, be sure not to overtighten, as the metal thread will strip out plywood, plastic or aluminum.

02

3Keel Tube Assembly

Sequence of the step

151413 Refer to the parts listing and locate the needed parts.

The section will be assembled in the step.

Bowline Knot

Figure Eight Knot Reef Knot

Before Assembly

Some Basic Knots

In each step, the needed parts are shown the number right below. Locate all parts for the steps.

03

SCALE

1:1

8 2x5mm (8)Wood Screw

7 2x8 mm Wood Screw (16)

6 3x10 mm Wood Screw (8)

9 2x12 mm Screw (11)

10 3x8 mm Washer Self Tapping Screw (8)

1 3x4mm (2)Set Screw

2 Ball (4) 4 M4 Locknut (3)3 M2 Nut (11)

11 4x32 mm Screw (1)

12 End Cap (2) 13 Keel Tube (1) 14 Winch Line Guide (2) Winch Line Guide Cap (2)15

Steering Arm (2)16 Rudder Mount (2)17 18 Ball End (4) 19 Rudder Pushrod (2)

Wire (1)21 Tie Rod (1)22

PE String (1)20

Swivel (9)23 25 Black String (1)White String (1) 24

Winch Servo Cover (1)26 O-Ring (2)27 28 Rudder (2)

29 Keel (1)

30 Ballast (1)

32 Hull (1)31 Hatch Cover (1)

5 2x14mm Pin (1)

04

33 Mast Joiner (1) 34 Head Crane (1) 35 Mast A (1) 36 Mast B (1)

38 Jib Boom (1)37 Main Boom (1) 39 PVC Strip (5)

43 Foam Tap (2)4240 Front Stand (1) 41 Rear Stand (1) Stand Joiner (1)

4948 Jib Sail (1) Main Sail (1)45 Servo Tray (1) 46 Servo Horn (1) 47 Rubber Boot (2)44 Decal (1)

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57

56

77

79

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5051

53

54

67 68 69 70

71

75747372

60

63

78

64

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61

59

58

Photo shown aboves with marked means not use for this boat.

Railing (2)

05

Display Stand Assembly

1. Locate the display stand parts

stand as shown at right. You then assemble the

may apply a thin bead of 5-min. epoxy at the joint.

2.

3. Now you can place the Hull on the display stand.

32 40

Locate the black Foam Tape then apply on the front and rear stand. This will protect the hull bottom from scratches during assembly and storage.

43

4341

32

42

40 41 42

1

40

43

41

42

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06

Keel Tube Assembly

1. Insert the Keel Tube from hull top and reach the hull bottom then epoxy the two End Caps in

place.

Note: end caps are working as waterproof and epoxy will help

to fill the gap between cap and

tube. However, do not leave anyexcess epoxy in the tube as it will be difficult to insert the keel shaft if there is any hardened epoxy inside.

Note: You may need to sand contact area A&B tube to enhance the adhesion.

13

1312

12

2

A

B

12

13

Apply enough epoxy to the contact area A&B to make sure keel tube is well glued in between the deck and bottom hull.

1. Install the Winch Line Guide from the inside of the hull then secure Winch Line Guide with the Guide Cap on the deck with line guide toward to the stern. Do the same procedure for the other winch line guide the Main Sheet Winch Stand then glue the stand in place with line guide toward to the bow.

2. Trial fit the keel in place, trim the contact area if necessary. Make sure the keel fit into the hull properly. Thread the O-ring onto the keel shaft, secure the keel shaft with M4 Locknut by using the furnished 4 way wrench.

3. Trail fit the Ballast Bulb to the keel next apply enough amount of epoxy to the slot of ballast bulb and secure it onto the keel with the M4 nut. Wipe out the excess epoxy. Excess epoxy that overflows the ballast bulb can be smoothed out with a wet finger or removed using rubbing alcohol. This must be done before the epoxy hardens.

4. Secure the two Rudder Mounts in place with eight 3x8mm Washer Self-Tapping Screws 10 . Note the orientation of the rudder mount.

5. Install Rudder in place as shown with Plastic Collar 78 inserted onto the rudder mount, next secure the Steering Arm with 3x4mm Set Screw . Make sure the steering arm is perpendicular to the rudder if you look from the top.

6. Secure the Steel Ball on the steering arm at the outmost hole with the 2x12mm Screw and M2 Nut . 7. Thread the two Rubber Boots on the deck. Next carefully insert the Push Rod through the rubber boot then thread the Ball End onto the pushrod as figure shown in length about 27mm( 1 1/16”).

07

1 2 3 4 10 14

14

15

15

16

78

9 17

18 19 27

27

28 29 30 66

66

47

3Keel and Rudder Assembly

4

30

17

28

161

2

39

47

19

18

15

14

4

19

92

1

3

1816

17

28

78

66

47

1027

29

30

4

1-1/16”(27mm)

08

Hull Fittings and Servo Tray Assembly

1. Install all Winches as shown, secure the winches with 3x10mm Wood Screws .

2. Secure the Chain Plates with 2x8mm Wood Screws .

4

6

6

3. Install the Bowsprit in place with six 2x5mm Wood screws as shown.8

79

4. Trial fit the rails then apply CA glue to secure the rail in place.

76 77 78

5. Glue the Steering Wheel together by using CA instant glue. Set aside and wait final assembly. Secure the wheel assembly and small Steering Wheel on the Wheel Stand with 2x8mm Wood Screw . Do the same procedure for the other wheel stand assembly. Once done then CA two stands on the deck as photo shown.

7. Trial fit the servo tray in place. Note the position will be about 2.5mm (3/32”) from the edge to the hatch opening if you see from the top. Suggest to use sandpaper to sand the glue area, this will enhance the adhesion. Apply enough epoxy to glue servo tray in the hull.

8. Glue the Handle on the Stand , next glue the whole assembly on the deck.

6. Locate the die-cut plywood sheet then use thick CA (not included) to assemble the servo tray as shown.

7 8 45 55 56 57

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61 63 64

65 77 78

67 687

79

69

67

73

68

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69 73 74

2.5mm

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7

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64

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64

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6

73

69

76

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6361

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7

68

78

67

8

45

45

2.5mm

9. Apply Decal on the two sides of the mast and boom.

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5

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22 18

51

36

53

9 523

3770

67447

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3

9

2

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11

7

4

3

4-3/4”(120mm)

2

11

3

7

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4

9

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9

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7

4

9

3

3

3

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2

18

53

53

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72

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72

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52

52

Main Mast Assembly

1. Insert the two Ends onto the Main Boom .

2. Secure the Chain Plate on the main boom with 2x8mm wood screw .

3. Secure the Ball on the boom with 2x12mm Screw .

4. Assemble the Main Mast A and B with the Mast Joiner and Boom Joiner . Secure the boom joiner with 2x12 mm Screw

and M2 Nut .

5. Install all Spreaders in place as illustration with 2x12mm Screw and M2 Nut .Do not over-tighten the nut as it may damage the mast.

6. Install the ball on Tie Rod Base with 2x12mm Screw and M2 Nut . Next secure the base at the bottom of main mast with 2x8 mm Wood Screw .

7. Install the main boom on the boom joiner with 4x32mm Screw and M4 Nut . Keep the main boom rotates freely.

8. Assemble the Tie Rod with two Ball Ends as illustration. Note the “Tiger” marks are either way at two ends. The “Tiger” mark always faces up when pushing the ball end to the ball.

Tiger

3. Apply PVC Strips on the Sail

2x14mm Pin into the hole. Make

10

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21

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20

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34

20

5

5

20 75

75

39

49

49

39

6

49

39

212

75

5

34

Main Sail Attachment

1. Install the Head Crane as illustration with Wire Base and Sail Wire . Tread the sail wire in the base about 5mm (13/64”).

2. With wire base in place, press the

sure the wire base can rotate but not freely.

in the position as illustration. Note: Apply at the back side is suggested. These strips will reinforce the sheet.

4. Thread the PE String in the sheet, next slide the leading edge of main sail into top groove of the mast.

5. You will need to install the head crane at the same time when pulling the sail all the way to the root of the mast. Thread the wire into the top of the sail then install the head crane in place when sail is pulling to the root. Make sure that all the leading edge of sail is smooth and securely in the groove of mast.

6. Now you may tie the sail with the Black String on the boom. Reef knot is suggested.

25

11

A

B

C

D

Main Sail Rigging

1. Cut 7 pieces Rigging Strings into the lengths as shown for use in this step.

Jump String A x 1 33”(82cm)Jump String B x 2 30”(75cm)Mast String C x 2 50”(125cm)Mast String D x 2 14”(35cm)

2. Jump String AThread the jumper string A from the second spreader root through the first spreader tip, head crane, the first spreader tip and finally back to the second spreader root. Try to adjust the string as tight as possible and make both two Figure Eight knots at the second spreader root.

3.Jump String BMake a Figure Eight knot then thread Jump String B from second spreader tip to the other side of the third spreader tip, the other side of fourth spreader tip then the other side of the fifth spreader tip. Adjust the tension and make the same knot.Do the same procedure for the other Jump String B.

4. Mast String CMake a Figure Eight knot then thread Mast Rigging String C from the first spreader root through the second spreader tip, the third, the fourth and the fifth spreader tip.Thread the string through the first hole of String Adjuster , then the second hole. Next thread through the Swivel then the third hole. Make a Bowline knot. Keep adjuster is about 10cm to the swivel.Do the same procedure on the other Mast Rigging String C.

5. Mast String DMake a Figure Eight knot then thread Mast Rigging String D from the fifth spreader root then do the same way on the string adjuster and swivel.Do the same procedure on the other Mast String D.

7

4”(100mm)

23 25

25

62

23

25

62

77

1/4”(6mm)

BA

Jib Boom and Jib Sail Assembly

1.Place the plastic Slider on the boom as illustration then secure the slider at the second hole with 2x8mm Wood Screw .

2. Place the other slider on the other boom end then insert the Jib Boom End . Next secure the slider and jib boom end together with 2x8mm Screw .

3. Epoxy the other Jib Boom End in place. Note the orientation of the ring.

4. Apply PVC Strip on the Jib Sail in the position as illustration. Note: Apply at the back side is suggested.

5. Use Black String to tie the jib sail on the boom. Reef knot is suggested.

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8

7

7

7

25

25

38

38

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48

48

48

39

39

60 71

71

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38

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60

60

13

7-4/5”(200mm)

9

1/2”(13mm)

3-3/20”(80mm)

Jib Sail Attachment

1. Tie a Swivel at the jib boom control slider with Black String as illustration.

2. Cut a piece of string in length of 10” (25cm) then secure the jib sail on Mast Joiner as shown.

3. Backstay StringCut a piece of string in length of 63”(160cm) then make a Bowline knot at the head crane tip. Do the same way as mast rigging line to thread string to Adjuster and Swivel .

25 62

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23

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14

10Radio InstallationⅠ

1. First cut two sail control lines .

Main Sail Control Line 39”(100cm)Jib Sail Control Line 39”(100cm)

2. Thread the control lines through front and rear winch line guides then try to reach the line inside the hull. Temporally secure the two ends on the deck and servo tray with tape to prevent the line loosened.

3. Refer to servo manual and install the servo mounting hardware then secure the servos in place. Note the servo orientation.

5. Install the switch in place.

4. Remove the servo horn from the servo, next secure the big Steering Servo Horn with 2X5mm Wood Screw onto the original servo horn as shown at the 3rd hole from the center. Thread the two Z-bend Ends to the big servo horn at the 2nd holes simultaneously. Secure the servo horn onto the servo with original servo horn screw when servo is at neutral position.

6. Connect the radio system following the manufacturer instruc-tions. Place the receiver in the radio compartment at the left side of servo tray.

7. The Sub-C 4-cell 3000~4000mAhbattery is recommended (No.2980) which you can place in battery holder.

8. Tape the receiver antenna wire to underside of the deck then thread the antenna out of the cabin. The cabin may need to cut a notch for antenna go through.

248 46

24

46

8

Battery

Rx

8

Cover with 2x5mm Wood Screw . You will need to trim a notch for

15

11

8

8

23 26

826

1.

2. Tie a Bowline knot to the Swivel on the other end of the control string. Keep the string about 1/8” (3mm) out of the front winch line guide. Note: The less turns of string in the drum the less chance for string to be out of the groove.

Thread one end of the Jib Sail Control String to the servo drum. Make a Figure Eight knot in the drum. Turn on the radio and make sure the control stick is full down then wind the string for two turns in the drum then place the drumon the winch servo.

3. Do the same procedure on the Main Sail Control String but keep the string about 1/8”(3mm) out of the rear winch line guide.

4. Do the sail adjustment in page 21, after you satisfied with the adjustment then secure the drum with the screw comes with the servo. Next secure the Winch Servo

the string to go.

Radio Installation Ⅱ

23

2623

16

12Attaching the Rigging Snaps

1. Attach the main mast assembly to the main mast well on the deck.

2. Snap on all the mast rigging swivels to the chain plates as shown.

3. Adjust the string adjusters so main mast can stand up.

4. Attach jib boom swivel to the bow chain plate. Adjust the jib sail adjuster at the top so jib sail is hoisted properly.

5. Attach the main sail and jib sail control lines to the main boom and jib boom respectively.

6. Snap on the swivel of backstay string to the stern chain plate. Adjust the string adjuster. Do not adjust the string too tight as head crane might be too low to contact the sail.

17

Center Line13Adjustment 1. Sail Adjustment

A. When the sail winch transmitter control stick is in the full “down” position, the sail winch servo drum should rotate and the sail control lines are tight. Jib sail and main sail now are at about 0-degree. If not, you may adjust the string length.

B. With winch drum is in the “full up” position, open the main boom to a deflection of about 80-degree.

C. It will be necessary to readjust the “full down” setting again, as both of these adjustments are effected by one another. The goal is to reach the best compromise possible.

D. Normally use the trim on transmit-ter will help the adjustment. If use a quality radio which has end position adjustment function then it will be much easier to adjust sail angle. E. If user use other servo then the control throw might vary. In this situation, user will have to change the position of the Chain Plate on Main Boom and the Slider on Jib Boom. Drill 1/16” holes at the desired position then use furnished 2x8mm wood screw to secure the slider and the chain plate.

2.Rudder Adjustment: Make sure that the rudder deflects at least 30-degree in each direction.

30°Approx

80°

80°

30°Approx

30°Approx

30°Approx

Approx

Approx

Jib Boom

Main Boom

18

Before sailing your yacht for thefirst time, take note of thefollowing:

A. Using clear tape, seal the radiohatch cover after turning onyour radio to prevent water fromentering the hatch.

B. Make sure that your transmitterantenna is extended completely.

Make sure that the receiver antenna is completely uncoiled (either inside or outside the hull).

C. Always turn the transmitter onbefore the receiver, likewise,turn the receiver off before thetransmitter.

D. Check that each sail, line, snap, and fitting is properly installed and adjusted.

CAUTION:Periodically check all knots if loose and the inside of the hull to make sure that there is no excessiveaccumulation of water.

Preparations for Sailing

Wind

No Sail Zone

L

ROPEN

CLOSE

L RSuggest to test the boat in light wind. Stronger wind will bend the boat very much, properly control theangle of main sail and operate the yacht in light wind is recommended.

CLOSE

CLOSE

OPEN

OPEN

19

1. If your boat carries weather helm,

incline the mast a bit forward.

2. If your boat carries lee helm, incline

the master a bit backward.

• Refer to the explanation of weatherhelm and lee helm below

Tuning Your Yacht for Proper Operation

Straighten any left orright leaning of master

Straighten any forward orbackward inclination of master

.

Tighten or slacken the

adjuster in order to

straighten the mast.

Too littletension

Properadjustment

Too muchtension

Maintaining an optimum sail profile isimportant for both speed and control.You may need to make some finer

adjustments to your tuning to obtain the

sail profile you want. The sail profilesshown in the figure are viewed form

behind.

Mast Adusting

BallastWeather Helm

Lee Helm

Wind Starboard

Starboard Tack

Port

Port Tack

Weather Helm and Lee Helm

With the Rudder in line with the Keel, if the boat tendsto turn windward, it is said that the boat carries

weather helm. If it tends to turn leeward, it is said that

it carries lee helm. The situation in which the boat

shows neither tendency is called balanced helm. In

general, a boat carrying a slight weather helm is better

in performance than one carrying lee helm or havingbalanced helm. Therefore, after adjusting the boat to

balanced helm re-adjust it so that it carries slight

weather helm.

Starboard Tack and Port Tack

The right side of the boat is called starboard and the left

side of boat s called port. When the yacht sails with thewind cross the starboard and the mainsail is on the portside, it is said that the boat is on a starboard tack. When

it sails with the wind cross the port and with the mainsailon the starboard, it is said that boat is on a port tack.You can sail on a starboard or port tack when sailingclose-hauled (i.e. windward), wind abeam (i.e. leeward).

Adjust with thejib halyard

Adjust withthe backstay

* Sail your yacht only in still bodies of wate r. Neversail your boat in running water such as streams orrivers, as it is easy to lose control of your boat.

* Do not sail in very heavy winds.* If you will be operating your yacht in the same area

as other R/C craft, be sure that you are all on differentfrequencies to help avoid any mishaps.

Principle of Sailing

Wind abeamSails: each at a position of 45˚Rudder: in center position

Wind

Quarter leeSails: letting both out a little moreRudder: to the left

Starboard tack-runningSails: letting both out totheir maximum positionRudder: in center position

45˚

Port tack-runningSails: letting both out totheir maximum positionRudder: in centerposition

Quarter leeSails: pulling both in a littleRudder: in center position

Luffing upSails: pulling in bit by bitRudder: to the left START

Wind abeamSails: each at a position of 45˚Rudder: in center position

Po

rt Tack

Luffing upSails: pulling both in all the wayRudder: to the left

Port tack - close - hauledSails: keep pulling inRudder: to be held at the centeras long as the sails do not shiver

Tacking*Sails: keep pulled inRudder: to the left

Starboard tack - close - hauledSails: keeping pulled inRudder: to be held at the centeras long as the sails do not shiver

TackingSails: keeping pulled inRudder: to the left

Bearing awaySails: let both out so as not toshiverRudder: to the leftStar Board

TackPort tack - close - hauledSails: keeping pulled inRudder: to be held at the centeras long as the sails do not shiver

TackingSails: keepingpulled inRudder: to the right

LAND

Other Tips

20

JJ6195MADE IN CHINA

Length: 32.1”(817mm)

Beam: 10.43”(265mm)

Sail Area:620sq.in.(40dm2)

Mast Height: 46.53”(1182mm)

Overall Height: 60.71”(1542mm)

Overall Weight: 3.08 Kg(6.79lb.)

Specifications:

No.5550No.5550