JACKSTAY SEARCH METHOD
The jackstay search technique involves divers or ROVs going through the jackstay. It is used to guide divers. it is a line running between two anchors fixed to the ground. In other situations, the jackstay can be used to direct commercial.
Divers between and to workplaces underwater or for the support of the transport of equipment and materials to and from their underwater workplaces or to support the transport of equipment and materials. Variations on the Jackstay Search Method
Jackstay Search Method Advantages
- The Jackstay search method can be very accurate because there is a significant number of edges that overlap every sweep.
- It is simple to change divers halfway through the hunt without needing to go back.
- The method of jackstay searching is effective in large, open-water environments.
Jackstay Search Method Disadvantages
- The jackstay search technique requires a significant amount of equipment in order to setup effectively.
- The jackstay method may be difficult to master particularly for experienced or novice rescue divers. It could require more extensive training.
- While precise and thorough the jackstay method of search can be time-consuming.
GRID SEARCH METHOD
In order to use the grid search technique Search teams need to construct an outline of the area of search. Utilizing markers buoys, teams design search squares that encompass the search area. Similar to other methods in that the size of search squares is determined by the their visibility as well as how large the area to be searched. When the search squares are made, each one is thoroughly scanned. After the search is completed for each square, the searchers will write down any information that is of interest. This process is repeated for every square in the search area.
Grid Search Variations
A common variation of grid search is the grid google underwater search using compass. In this type of pattern, the vehicle or diver can swim parallel lines on an compass bearing and its reciprocal while carrying out an eye-search. The parallel lines used typically allow overlap in order to guarantee accuracy.
Grid Search Method Disadvantages
- While highly accurate Grid search is extremely precise, it takes a long time to complete.
- Grid search methods are complex and requires skilled divers.
- Grid search methods require an extensive quantity of technology.
SNAG-LINE SEARCH METHOD
The snag line search method is a great method to locate huge targets in a smaller space. If the shape and size of the target are suitable and the target is in a good shape, the snag line search method can be a fast way to locate an object.
Snag-Line Method Advantages
- The snag line search method is extremely effective for large targets, such as sunken vehicles as well as boats and aircraft.
- The snag-line method is incredibly rapid.
- The snag-line doesn’t require the use of a lot of equipment.
Snag-Line Method Disadvantages
- The snag line method works when it comes to larger objects. However, it’s not suitable for smaller targets.
- The snag-line technique can be damaging to the bottom of the ocean or the lake bed.
QUICK SEARCH METHOD
- It is based on the assumption that a person will be located in an area that is equal to how deep the ocean.
- Particularly when the victim’s most recent location is near an ocean shore, boat dock or pier, the fast search is executed by the initial two divers while others team members start to pocket tv app download install additional equipment.
- This is particularly beneficial in waters that are prone to danger.
Quick Search Method Advantages
- The speedy search technique is useful to locate victims quickly near the shore, pier or dock.
- For a search conducted using the jackstay method divers start with one anchor , and then explore their line till they get to another anchor.
- When they reach the second anchor, the anchor is moved laterally to shift the line.
- The distance to which the fixed point is moved is determined by the conditions of the ocean, the its turbidity, as well as the dimensions of the object.
- After the anchor has been removed, the diver changes directions and explores the area while following the line that leads back to the original anchor. This process continues until the area has been fully searched.
Variations on the Jackstay Search Method
- If the body of water to be examined is tiny or shallow the jackstay may move by the team on top in contrast for the divers.
- Through lifting the jackstay, and taking the whole line parallel to its initial position the surface team could efficiently move the line to the diver.
- Another method, referred to in the J search, is to have the ROV or diver starting at the exact end of the search line each time.
- Once the sweep of line has been completed , the exact jackstay’s end is reset each time until, at the end of the sweep the line has become in a straight line to its initial position.