Ship Navigation Equipment Standards

<p>A gyro compass (D)</p> Signup and view all the answers

<p>All ships of 10,000 gross tonnage and upwards (D)</p> Signup and view all the answers

<p>Means of correcting heading and bearings to true at all times (B)</p> Signup and view all the answers

<p>A speed and distance measuring device (A)</p> Signup and view all the answers

<p>A secondary navigation system (C)</p> Signup and view all the answers

<p>A gyro compass heading repeater (C)</p> Signup and view all the answers

<p>± 0.25 x secant latitude (C)</p> Signup and view all the answers

<p>± 2° (C)</p> Signup and view all the answers

<p>2% of the speed of the ship or 0.2 knots (A)</p> Signup and view all the answers

<p>2.5% of the speed of the ship or 0.25 knots (C)</p> Signup and view all the answers

<p>One range covering 20 m and another covering 200 m (D)</p> Signup and view all the answers

<p>± 0.5 m (A)</p> Signup and view all the answers

<p>± 5 m (B)</p> Signup and view all the answers

<p>± 3° for simple harmonic motion with specific parameters (C)</p> Signup and view all the answers

<p>1 m/s2 (D)</p> Signup and view all the answers

<p>2% of the speed of the ship or 0.2 knots (D)</p> Signup and view all the answers

All ships, regardless of size, must have a standard magnetic compass or another device to show the ship's heading, regardless of its power source.

All ships, regardless of size, must have a device to take bearings, independent of a power supply.

All ships, regardless of size, must be able to correct compass readings to true north.

Ships of 150 gross tonnage or more, and passenger ships, must have a spare magnetic compass or other device that can replace the main compass.

Ships of 300 gross tonnage or more, and passenger ships, must have a device to measure and display water depth, as well as a speed and distance measuring device.

Ships of 500 gross tonnage or more must have a gyro compass, as well as a heading repeater and a bearing repeater, except for certain environmental protection and thermal discharge requirements.

Ships of 10,000 gross tonnage or more must have a heading or track control system to keep a steady heading or track.

Ships of 50,000 gross tonnage or more must have a fully automated steering and track control system, in addition to all the requirements mentioned above.

A device that measures speed and distance over the ground in both forward and sideways directions. This helps determine a ship's position and movement.

A type of compass that uses a gyroscope to maintain its orientation and points towards true north, unaffected by magnetic fields.

The maximum allowed difference between the actual latitude and the latitude indicated by the gyrocompass after accounting for speed and course adjustments. It should not exceed 0.25 times the secant of the latitude at speeds up to 20 knots.

The maximum allowed difference between the actual course and the course indicated by the gyrocompass after a sudden change in speed of 20 knots. It should not exceed ± 2 degrees.

The maximum allowed difference between the actual course and the course indicated by the gyrocompass after a sudden 180-degree course change at 20 knots. It should not exceed ± 3 degrees.

The maximum allowed difference between the actual depth and the depth indicated by the echo sounder. It is either +/- 0.5 m on the 20 m range scale, +/- 5 m on the 200 m range scale, or 2.5% of the indicated depth, whichever is greater.

A device that uses sound waves to measure the depth of the water below the ship. It provides readings on two scales: a shallow range for depths up to 20 meters and a deep range for depths up to 200 meters.

The maximum allowed difference between the actual speed of the ship and the speed indicated by the log when the ship is not affected by shallow water, wind, sea bottom, current, or tide. This error should not exceed 2% of the ship's speed or 0.2 knots, whichever is greater.

A device that measures the ship's speed through the water. It uses various methods, such as measuring the rotation of a propeller or the flow of water past a sensor.

The maximum allowed difference between the actual speed of the ship and the speed indicated by the log for a digital display. It should not exceed 2% of the ship's speed or 0.2 knots, whichever is larger.