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Chemical tanker (Dis.8682t) , v19-3D

4.2.Squat

Shallow water

Squat

 

 

 

 

 

 

 

 

 

 

m

 

 

 

 

 

 

 

 

 

 

0.28

 

 

 

 

 

 

 

 

Stern

 

 

 

 

 

 

 

 

 

 

Bow

 

0.24

 

 

 

 

 

 

 

 

 

 

0.2

 

 

 

 

 

 

 

 

 

 

0.16

 

 

 

 

 

 

 

 

 

 

0.12

 

 

 

 

 

 

 

 

 

 

0.08

 

 

 

 

 

 

 

 

 

 

0.04

 

 

 

 

 

 

 

 

 

 

0

 

 

 

 

 

 

 

 

Speed, knots

 

 

 

 

 

 

 

 

 

 

1

2

3

4

5

6

7

8

9

10

11

Water depth to draft ratio 1.2

The information contained herein is proprietary to Transas Marine (UK) Ltd and Navis Co. and shall not be duplicated, used, or disclosed in whole or part for any functional other than to evaluate this quotation.

31

Chemical tanker (Dis.8682t) , v19-3D

5.MANOEUVRING CHARACTERISTICS IN WIND

5.1.Wind lateral forces and yaw moments (estimated)

Wind

Force, t

Moment,

speed

 

tm

10 knots

0.0

0.0

20 knots

0.0

0.0

30 knots

0.0

0.0

Wind

Force, t

Moment,

speed

 

tm

10 knots

0.7

1.0

20 knots

2.8

4.2

30 knots

6.4

9.4

Wind

Force, t

Moment,

 

speed

 

tm

 

10 knots

1.3

-6.5

 

 

20 knots

5.2

-26.1

 

 

 

 

30 knots

11.7

-58.7

 

 

Wind

Force, t

Moment,

speed

 

tm

10 knots

-0.7

-1.0

20 knots

-2.8

-4.2

30 knots

-6.4

-9.4

 

Wind

Force, t

Moment,

 

speed

 

tm

 

10 knots

-1.3

6.5

 

20 knots

-5.2

26.1

 

 

30 knots

-11.7

58.7

Wind

Force, t

Moment,

speed

 

tm

10 knots

1.2

-22.8

20 knots

4.9

-91.3

30 knots

11.1

-205.5

Wind

Force, t

Moment,

speed

 

tm

10 knots

-1.2

22.8

20 knots

-4.9

91.3

30 knots

-11.1

205.5

Wind

Force, t

Moment,

speed

 

tm

10 knots

0.0

-0.0

20 knots

0.0

-0.0

30 knots

0.0

-0.0

The information contained herein is proprietary to Transas Marine (UK) Ltd and Navis Co. and shall not be duplicated, used, or disclosed in whole or part for any functional other than to evaluate this quotation.

32

Chemical tanker (Dis.8682t) , v19-3D

5.2.Course keeping limitation at Deep water

Relative wind

Rudder amount required to maintain course at following wind

direction, deg

 

speeds, deg; Full Ahead

 

 

15 knots

30 knots

45 knots

60 knots

0

0.0

0.0

0.0

0.0

45

-0.6

-1.8

-3.8

-6.0

90

-0.7

-2.5

-5.7

-9.1

135

-0.4

-2.5

-6.5

-12.0

180

-0.0

-0.0

-0.0

-0.0

225

0.4

2.5

6.6

12.5

270

0.7

2.6

5.9

9.8

315

0.6

1.9

3.9

6.1

5.3.Drifting under wind influence

Drifting behaviour under wind influence (Stop)

Wind speed, knots

Direction of drift, deg

Rate of drift, knots

10

176

0.28

20

174

0.56

30

172

0.85

40

171

1.13

50

170

1.42

60

170

1.71

Rate of drift (ship speed)

Wind

Direction of drift

Drifting under wind influence

In Table 5.2 steady direction and rate of ship drift under wind influence are presented.

Direction of drift is determined relativity wind direction.

The information contained herein is proprietary to Transas Marine (UK) Ltd and Navis Co. and shall not be duplicated, used, or disclosed in whole or part for any functional other than to evaluate this quotation.

33

Chemical tanker (Dis.8682t) , v19-3D

6. ADDITIONAL INFORMATION

The information contained herein is proprietary to Transas Marine (UK) Ltd and Navis Co. and shall not be duplicated, used, or disclosed in whole or part for any functional other than to evaluate this quotation.

34

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