Heaving to

Heave is a maneuver a vessel for the purpose of slowing or stopping of in a quiet position as possible. If this position is reached, one speaks of the accompany of the vehicle.

Will Beige Rotates to move from one vehicle to take people or objects to another to accommodate fallen overboard person or object to weather stormy weather with strong winds and high waves or even to seafaring or medical work to do ship position at as quiet.

  • 2.1 buzz in beam seas
  • 2.3 Wind and lake about 4 bar from the front
  • 2.4 beds with backward rotating propeller in front of lake

Sailboat

In a sailboat, the heaving, and for a long time that accompany, be achieved by a particular position of the sails. In this case, a turn is executed, the jib sheet but not detached, so that the jib is back. The Fock thus does not change the page, as it should be at the turn otherwise. At the same time the mainsail is eased and the rudder set something to windward ( tiller to leeward ). This is to ensure that the boat is luffing.

By luffing the boat will turn into the wind until the back standing headsail slows the boat and the sail is in the lee of the headsail. The ride is taken out of the boat. The fact that the boat does not travel through the water, the Luv is standing rudder blade no longer flows around and has at this stage no more rudder effect. The luffing ends at that moment.

Now affects the headsail back standing and causes Leegierigkeit. The boat drops. The drop continues until the mainsail is rotated out of the wind shadow of the jib and the boat picks up speed again. Now the rudder blade flows around again, the action gets back and can luff the boat. This repetitive movement continues throughout the Beiliegens. Due to the enormous drift to leeward, and the oscillating movement of the boat very much wind energy is added, bringing the tranquility on board. This great calm on board was successfully employed as a strategy for survival in severe storms.

In practice, the ship movement when accompanied is highly dependent on wind and wave conditions, sail types, type of vessel and rigging. Usually ships sail drive it with one to two knots leeward slowly.

Man Overboard

When man -overboard maneuver is accompanied by the final position of the ship. The ship is enclosed a stable work platform that enables that the victim can be safely recovered. The ship remains stand still, it drives slowly towards the victim, the boom attached as a " boom " in the correct position directly above the victim, and there is no beating sails or pods.

Motor vessels

In a motor boat there are four different possibilities for heaving and accompanied by essentially of: driving beam seas, steaming with Steven against wind and sea, wind and sea about 4 bar from the front and back chairs with rotating propeller in front of the lake. Which of these four options can be used depends mainly on the size of the ship, the type and the closure of the structures, the performance of the machine, the load distribution, the stability of the ship, the freeboard, the course of the ride, the sea and the available sea room (see lee shore ).

It should be noted that the corresponding operation is not initiated too late, as a heave with already heavy seas with a high risk of over- coming of crushers and thus damage to ship and cargo is connected.

Driving beam seas

In this case, the engine is stopped, the swell meets at an angle of approximately 90 ° to the vessel. The ship sells thus nearly abeam. The result is a lateral wake in the windward side of the ship, in which detected approaching lakes before the ship breaking.

Due to the lateral impact of the swell on the ship, the ship may be strong roll. Prerequisite for this maneuver are thus a sufficient stability of the ship and a high freeboard.

In this case the ship sails with a low speed ahead just to wind and sea conditions. The rotational speed of the propeller is adjusted so that the steering capability is just simply obtained.

This maneuver is particularly suitable for vessels for which a driving beam seas is not possible. However, the ship is u.U. strong stomp, so that the hull is longitudinally heavily used and the propeller can come out of the water.

Wind and sea about 4 bar from the front

In this case the ship sails with a low speed ahead with an angle of about 45 ° (corresponding to 4 bar ) against wind and sea conditions. The rotational speed of the propeller is adjusted so that the steering capability is just simply obtained. The rudder can be far more than set to leeward, as most ships are weather helm, so that the ship effectively moves laterally astern.

Also, this maneuver is particularly suitable for vessels for which a driving beam seas is not possible. For vessels with low stability and easy verrutschbarer charge but caution is advised.

Lying with backward rotating propeller in front of lake

The machine runs slowly backwards, the ship lies with the vehicle facing the lake, ie the swell comes from astern. The backward rotating propeller in this case acts like a ausgebrachtem over the stern drogue.

This maneuver is mainly applied when the time for the above three maneuvers was missed and the swell is too strong already.

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