marine hour meter gauge

• 2022-03-14

The marine log is an instrument used to measure the voyage. It is used to measure the speed and the accumulated voyage. It is the same as the compass.

The early ships were equipped with runner-type speed logs, which measured the speed of the ship by measuring the flow rate of seawater, and then obtained the voyage through the timing device. Electromagnetic log is widely used on modern ships, using the principle of electromagnetic induction to measure the speed and voyage of the ship.

The modern log is mainly composed of a speed measuring part and an indicating part. The speed measuring part is used to detect and amplify the ship's speed signal or voyage signal; the indicating part displays the ship's speed or voyage in mechanical or electrical form, and then displays the voyage or speed by means of integration or differentiation.

Just like the odometer of a car, the marine engine hour meter will tell you how much the engine is used. Whether you are looking for an analog marine hour meter, an electromechanical marine engine hour meter, or a digital marine hour meter

The speed of an ordinary general cargo ship is 12-15 knots, which is 22-27 km/h

The speed of large container ships is 20-28 knots, which is 36-52 km/h

The maximum speed of large nuclear-powered aircraft carriers can reach 32-35 knots, which is 60-65 km/h

The speed of an ordinary warship is between 20-30 knots, which is 36-55 km/h

The speed of a large cruise ship is similar to that of a large container

1 knot is 1 nautical mile per hour, 1 nautical mile = 1.8 kilometers.The driftwood method in the Netherlands in the early 16th century was to measure the speed and voyage by measuring the time it took for the driftwood to pass a captain. Later, the hourglass odometer is used over a longer period. This method is to use a 14-second or 28-second hourglass meter to time, and another piece of wood is connected to a rope, and knots are equidistantly tied on the rope, and the space between the two knots is called a section. Using a 14-second hourglass, the distance between the two knots is 23 feet 7.5 inches. Observe the number of knots released in every 14 seconds, that is, the number of nautical miles the ship travels per hour (1 nautical mile is about 6076 feet). Therefore, the unit of ship speed is still called knot (1 knot = 1 nautical mile/hour).Now there is an hour meter, which will be convenient to use