Open AccessSurvey of search area of ship in distress
Author(s) -
Evgeniy Romanovich Yapparov,
Viktor Valerievich Alekseev
Publication year - 2020
Publication title -
vestnik astrahanskogo gosudarstvennogo tehničeskogo universiteta. seriâ: morskaâ tehnika i tehnologiâ
Language(s) - English
Resource type - Journals
eISSN - 2225-0352
pISSN - 2073-1574
DOI - 10.24143/2073-1574-2020-4-53-60
Subject(s) - search and rescue , transverse plane , distress , range (aeronautics) , computer science , operations research , engineering , psychology , artificial intelligence , structural engineering , aerospace engineering , robot , psychotherapist
The article describes the different types of maneuvering and search methods that require a clear organization. The scheme of survey of the search area of a ship in distress is considered. There have been illustrated the tactical techniques of search and rescue operations at sea characterized by the fact that the exact location of the ship in distress is unknown. The necessary elements and quantities to be calculated during the search and rescue operation are listed: location of search courses; ratio of the speed and detection range at which a ship in distress can be detected in a specified area of a given width; maximum width of the area to be surveyed; time required to survey the area. The scheme of the survey of the search area is presented. Two survey methods are considered: by a single vessel and by a group of vessels. It is noted that in the first case, the survey will be carried out by the rescue vessel moving over the entire area by longitudinal and transverse tacks in turn; the calculations are given. In the second case, when searching by a group of vessels, the possibilities of surveying an area of greater or lesser width can change. Formulas are presented for calculating the required ratio at which a ship in distress can be detected; the size of the transverse and longitudinal tacks; the maximum width of the area that can be surveyed by a group of vessels involved in the search operation. Using a specific example, the elements of the search and rescue process are calculated.