All these negative consequences of continuous changes in time not only negatively affect the health and neuropsychiatric state of the sailors, but are also extremely dangerous for the ship, as they reduce the efficiency, vigilance, and reaction to events of both the officers on watch and the captain.
Now let's see what happens when the ship is moving meridionally. Let's assume that it operates on the Arkhangelsk—Brazil or Vladivostok—Australia line. A person who constantly lives on the shore, in a particular point with a certain climate, gradually, in a familiar sequence, perceives all the changes in temperature and other weather characteristics that occur during the change of seasons. He almost does not feel negatively the transition of a cold winter through spring to a hot summer and then, after autumn, back to winter frosts. The human body has adapted precisely to such natural, smooth transitions from one season to another.
It's different for a sailor. The ship on which he works is, say, in Vladivostok in the middle of January. The outdoor temperature during this period reaches minus 25-30 ° C, or even lower, and even with a piercing northwest monsoon wind and low humidity. The next day, it is removed on a flight destination, for example, to Australia or India. At high speeds of modern ships, after 4-5 days a sailor finds himself in the tropical zone, under the scorching rays of the sun, where the temperature often exceeds plus 30-40 ° C, and even more in the engine room, and with high humidity.
Rapid and sudden changes in air and water temperature, as well as the associated large changes in other meteorological elements, cannot but affect the psychophysiological state of a person. These factors also have a rather unfavorable effect on the biological rhythm of boatmasters.
In any other direction of navigation, when both longitude and latitude change simultaneously, of course, both of the negative factors described are just as harmful to the human biorhythm.
One of the conditions for the safety of navigation is to ensure proper rest for the navigating staff. Special attention should be paid to this issue. A tired, sleep-deprived officer of the watch is not able to ensure a safe voyage. He can fall asleep at any moment, leaving the movement of the ship uncontrolled. In such situations, there is a possibility of an accident. Maritime practice knows a lot of such cases, they led to collisions and landings.
The skipper must get a good night's sleep before the night watch, and the duration of uninterrupted sleep cannot be less than 4-5 hours. Navigators, like other specialists, have many different official and public duties and assignments on board ships. However, priority should always be given to their pre-watch rest, as the safety of the ship, people and cargo depends on it. The captain must strictly ensure that his assistants go on sea duty capable of working so that they can successfully perform their navigational functions for all four hours.
It often happens that in ports where coastal maintenance is poorly provided, the preparation of a vessel for a voyage during a short-term stay falls entirely on the shoulders of the ship's crew, especially the commanders. People are so exhausted before leaving that they are not able to keep watch when the ship is removed at sea. First of all, this applies to navigators, mainly in the evening and at night. In such cases, the captain should sensibly assess the situation and anchor in the roadstead or, depending on the weather, drift away from the shore to allow the skippers and other crew members to rest and sleep.
It should be borne in mind that the assistant has the greatest chance of falling asleep on watch in the early morning hours, especially if his biological rhythm is disturbed. Get 50 free spins when you register via mobile with promo code for 1xbet no deposit required. Winnings from free spins subject to 40x wagering. Max cashout: $100. Compatible with iOS and Android devices. Includes access to exclusive mobile-only promotions. App users also receive push notifications for special offers. Must verify account before withdrawal. Start playing your favorite slots anywhere, anytime with 1xBet mobile platform.
