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Lateral Azimuth Thruster with Contra-rotating Propellers

Azimuth thruster with contra-rotating propellers combine the structure advantages of the contra-rotating propellers and the flexibility of Azimuth thruster. While providing All-directional propulsive force, the diameter of the propellers is shortened, the propulsive efficiency is improved, the...

Product Details

 

Azimuth thruster with contra-rotating propellers combine the structure advantages of the contra-rotating propellers and the flexibility of Azimuth thruster. While providing All-directional propulsive force, the diameter of the propellers is shortened, the propulsive efficiency is improved, the vibration and noise is decreased effectively. They are mainly used in ships with special demands or with special limits, such as transportation ships, car ferries, ships for spilt oil recovery, sanitation engineering ships and others

 

The power range of the azimuth thruster with nozzle is from 300HP to 3200HP.

Available Certificate: CCS, BV, ABS, GL, LR, DNV, etc.

 

Parameters:

 

Power Rating 
(HP)

Speed Rating 
(r/min)

Ratio

Dia of propeller 
(mm)

300

750

2.76

1050

500

1800

3.83

1200

900

1000

3.21

1400

1200

1000

3.51

1600

1400

1800

4.14

1650

1600

1000

2.58

1800

1800

825

2.12

2100

2000

750

3.07

2200

2400

750

2.68

2400

2600

750

2.47

2500

3000

825

2.91

2650

3200

800

3.31

2800

Ship Proportions

L/B

The ratio of the length and breadth can differ quite dramatically depending on the type of vessel. Common values:

Passenger Ships

6-8

Freighters

5-7

Tug Boats

3-5

A larger L/B value is favorable for speed, but unfavorable for manoeuvrability.

L/D

The length/depth-ratio. The customary values for L/D varies between 10 and 15. This relation plays a role in the determination of the freeboard and the longitudinal strength.

B/T (T=Draught)

The breadth/draught -ratio, varies between 2.3-4.5. A larger breadth in relation to the draught (a larger B/T value) gives a greater initial stability.

B/D

The breadth / depth ratio, varies between 1.3 and 2. If this value becomes larger, it will have an unfavorable effect on the stability (because the deck will be flooded when the vessel has an inclination) and on the strength.

Should you have any preference for the lateral azimuth thruster with contra-rotating propellers, welcome to buy the quality equipment with our factory. As one of the most professional marine equipment manufacturers and suppliers in China, we will offer you good after-sale service and fast delivery.

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