AN AIR DEPLOYABLE BUOY FOR SEARCH AND RESCUE OPERATIONS

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Authors
  1. Risley, W.C.
  2. Leger, G.T.
  3. Patterson, A.
Corporate Authors
Defence Research Establishment Atlantic, Dartmouth NS (CAN)
Abstract
Maritime rescue operations often involve extensive searches for drifting objects, typically life rafts or persons in the water, and search operations are directed based on computer predictions of drift trajectories. These predictions are based on estimates of local wind and wave conditions and, since there are uncertainties associated with these estimates the search area grows rapidly with time, an doften within a few hours the area may be far larger than can be effectively searched by available aircraft and ships. This paper will describe the development of a new tool for maritime Search and Rescue (SAR) activities, called a self locating Datum Marker Buoy (DMB). It comprises an air deployable buoy that drifts with the same trajectory as a life raft (primarily driven by the surface current) depending on the configuration chosen prior to deployment. The buoy contains a GPS receiver and an ARGOS satellite transmitter so that it is able to relay near real-time position data to a Rescue Coordination Center, and thus allows the search activities to be directed in a more focused, and successful manner. The development of the buoy will be discussed in the paper, results of drift validation trials in conditions of high winds and currents will be presented, and the impact of DMB data on search area predictions will be shown.
Date of publication
06 Oct 1997
Number of Pages
5
DSTKIM No
98-00106
CANDIS No
506856
Format(s):
Hardcopy;Document Image stored on Optical Disk

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