Image description
The image shows a large ship, built to run on diesel-electric propulsion, and the current ones with nuclear propulsion, equipped with additional structural strengthening for the bow thruster to withstand the breaking of ice and enhanced with a higher engine power to move forwards the ice, viewed from side and directed to the left.
The ship, also called an icebreaker, is an unique vessel due to its function of cutting ice to make room for other merchant ships to sail on water, but also by the use of high strength steel efficient to resist brittle fracture in low ambient temperatures, shocks, scratches.
The stem or the cutwater, is the key element that ends the bow of the ship, here the far left, and, unlike the sharp shape common to other vessels, here, the stem has a slightly domed shape, which ease the climbing on the ice, being pushed from behind by the stern thruster, bottom right end.
The stem is continued by the narrower smoother bottom, which glides over the thick ice coat and puts great pressure on it.
The ship’s weight comes down on the ice, crushing it and sinking it under the ice coat, then cuts it into smaller pieces by the ice knife below, sharp as a blade, shown at the very bottom of the ship, left end.
The double structure of the outer shell of the ship is called the hull and is marked embossed, has an elongated, rectangular shape, wider in the middle of the superstructures and narrowed towards the ends, where it extends to the top or bow, left and tail or stern, right.
The superstructure or island is the highest construction on the upper deck of the ship, from where the ship is steered. Here it is rendered by an elevation of the body from left to center, as a horizontal rectangle, embossed, with jagged upper edges.
The windows of the superstructure on the left, from the bow, are aligned alongside its entire body, rendered as small, blank squares, placed on three rows.
The windows of the cabins on the right, from the stern, are fewer, marked as small, blank squares, arranged in two rows.
The icebreaker consists of many workstations:
- the superstructure to the left of the deck or the navigation bridge, where are: the pilothouse, from where the ship is steered, the chart room, the combat information center, the radio shack, and the captain’s cabin.
- above the superstructure are installed: the mast with radar and surveillance systems, next to the ladder crow’s nest at the top of the mast, the derrick and the control tower.
- The cabins on the right of the deck consist of: helicopter hangar, cranes, crew berthing, oceanographic research office, staterooms.
- On the afterdeck, towards the stern, right side, after the helicopter hangar is a small flight deck, called the heliport.
- The engine and boiler rooms are located in the center, under the deck, above them being mounted the smoke funnel.
The foremast with satellite and radar antennas at the top of the main superstructure, top left, is rendered by three thickened and vertical lines, placed parallel, of which the middle one is the derrick, the tallest.
The smoke funnel in the center has the shape of a thin, vertical, embossed rectangle.
The icebreaker floats on the water rendered by two wavy lines, horizontal and thickened, located below the ship.
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