SU59317A1 - Low speed passenger vessel - Google Patents

Description

Until now, the design of marine passenger ships took the so-called ordinary j types, the dimensions of which and their ratios fit into the normal | for projected vessels. In the event that the size of the vessel is limited by the operating conditions, I, then their sizes are assigned to the maximum | valid. The width is determined by j permissible ratios of length to width I according to the conditions of load and width to draft, according to the conditions of stability. With limited length and | the draft of the vessel tends to increase the width, if possible, in order to obtain a greater displacement of the vessel and to improve the overall position. However, the choice of width is usually limited to obtaining a possible j of a possible metacentric height and an acceptable rolling period.

In mixed water transport - sea and river - restrictions in the draft and requirements for sea vessels to ensure their nautical qualities led to the division of vessels into sea and river. This division of vessels, although it has some positive aspects, but at the same time has a number of negative and, in particular, is associated with the transfer of passengers in multimodal transport, causing passengers a lot of inconvenience.

In order to eliminate this deficiency in water passenger transport and thus provide better passenger service, as well as to have on board ships with variable draft in case of calm or stormy weather, a small-capacity passenger vessel has two draft, two widths and side displacement tanks that, when running in stormy weather, are filled with ballast, are at the same time pitching gauges.

In FIG. 1 and 2 depict the layout of the vessel (in two projections) and FIG. 3 is a cross section of it.

The proposed low-seating passenger ship is equipped, as already mentioned, with side tanks C submerged in water and located near the surface of the water and intended to contribute to a considerable dissipation of energy during rolling.

The side tanks C extend somewhat more than half the length of the vessel and have a considerable width.

In addition to rolling out sideways, immersion of side tanks gives you the opportunity to die and keel, with the enormous capacity of the tanks, allowing you to land a ship with a dipole on the stern for better immersion of screws.

When a vessel sails along a river, the draft TI (Fig. 3) without water ballast is equal; According to the author’s estimates, approximately 1.8 k (with a length of 100 m) and sea

a draft of T with a water ballast of 2.4 M. At the same time, the speed of the movements is about 16-17 knots per hour.

Subject and, d and e and.

Small-bodied passenger vessel, characterized in that, for the purpose of combined sea and river navigation with variable draft, on each side of the vessel in the middle part of the vessel are displaced keels (side tanks).

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