2000 passengers and a 600-member crew

The Aida Diva – so it is imperative for technology to be absolutely reliable.


Image source: Wikipedia

The same goes for the propulsion and control technology:

The AIDAdiva is equipped with a diesel-electrical machinery with four diesel generators as power station that supply the entire ship with electrical energy. All electrical system, the propulsion system and the monitoring equipment were developed and built by Siemens. To ensure highest possible operational reliability the machinery and propulsion systems are technically and spatially separated into two independent groups and equipped with extensive monitoring equipment (ship automation system "SISHIPCIS PAX").



Image source: Siemens AG

Propulsion

The AIDAdiva is equipped with a conventional propulsion system. The two propeller motors are 3-phase synchronisation machines of type Siemens 1DM5650-8DS06-Z transferring a capacity of 12,400 kW each (approx. 16,900 PS) to fixed 5-blade propellers via a shaft system. Each propeller has a diameter of 5.20 m and a mass of approx. 13.2 t. At a max. rpm of 130/min the ship reaches a max. speed of 21 knots.

For manoeuvring in ports and at low speeds two bow thruster motors with a capacity of 2,300 kW each (approx. 3,100 HP) and two stern thrust motors of 1,500 kW each (approx. 2,040 HP) are installed. Via a "dynamic positioning system" the ship can precisely keep to a predefined position.

Here some more information about the ship and the engines:

»»» http://www.ship-technology.com/projects/aidadiva/

What is a dragline excavator?

Dragline excavation systems are heavy equipment used in civil engineering and surface mining. In civil engineering the smaller types are used for road and port construction. The larger types are used in strip-mining operations to move overburden above coal, and for tar-sand mining. Draglines are amongst the largest mobile equipment (not water-borne), and weigh in the vicinity of 2000 metric tonnes, though specimens weighing up to 13,000 metric tonnes have also been constructed.

A dragline bucket system consists of a large bucket which is suspended from a boom (a large truss-like structure) with wire ropes. The bucket is manoeuvred by means of a number of ropes and chains. The hoist rope, powered by large diesel or electric motors, supports the bucket and hoist-coupler assembly from the boom. The dragrope is used to draw the bucket assembly horizontally. By skillful manoeuvre of the hoist and the dragropes the bucket is controlled for various operations.

»»» Source: wikipedia.org/wiki/Dragline_excavator