Launching of a vessel

the launching of a vessel is urination of a new ship in threw.

Längsstapellauf, 1930
Longitudinal launching of a vessel, 1930
Querstapellauf
transverse launching of a vessel
Modellversuch eines Querstapellaufs
model test of a transverse launching of a vessel

procedure

during the building is supported the hull by firm base. One calls these Pallen. Itconsist in the lower range of concrete and in the upper range of felling trees hurrying, which are pressed apart after loosening of a screw under the weight of the ship and disintegrated. In former times one used piles from Holzbohlen, about which the name launching of a vessel is derived. WithLaunching of a vessel is shifted the weight of the ship on a wood carriage, which slips after the loosening of the holding devices an inclined ramp in the water down, whereby it is led laterally by rails. In addition must both the carriage as well as the wood edition thatRamp, on which it slips, with large quantities of lubricants to be provided. Thus one needed 22 tons fat and oil with the launching of a vessel of the Titanic.

After the launching of a vessel the building of the ship is not yet final. The ship machine, interior arrangement, superstructures or armamentthereafter are only installed.

Traditionally the ship baptism precedes the actual launching of a vessel .

The place to a ship is built, also as the mounting jig is designated.

kinds of the launching of a vessel

the ship knows thereby full length, mostlywith the tail (longitudinal launching of a vessel) or (transverse launching of a vessel) in front in the water to be left lateral. With high sea-going vessels generally the longitudinal launching of a vessel comes to application, with inland waterway crafts, often also with submarines, the transverse launching of a vessel. The longitudinal launching of a vessel is used since the antique one, the transverse launching of a vessel becameonly in 19. Century imported. Large ships are built today frequently in dry docks, which are simply flooded after the completion, until the ship up-swims. Nevertheless the name kept launching of a vessel also here.

problems of the launching of a vessel

thatLaunching of a vessel is a critical moment for the ship. With the longitudinal launching of a vessel large forces affect the trunk, which is bent downward first, as soon as the tail reached the end of the ramp. Subsequently, the tail swims up, so that the trunk onlynose and tail upward rests upon and one bends. Besides the ship has a small rolling stability during this time only and can kentern. With the transverse launching of a vessel again the ship comes after immersing by the braking action of the water into strongSide situation. Often threw only a limited place is available, so that the ship must be braked fast, in order to avoid a collision.

There was therefore a set of failed launchings of a vessel, with which the ship on the ramp tiltedor in the water sank immediately. Lubricants did not have the necessary gliding ability at to high or to low temperature, so that the trunk did not move from the place. Starting from the second half 20. Century have modern lubricants these problemsto a large extent overcome.

 

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