Underwater Search Techniques

A brief odyssey by Darin Edmunds BSAC AI Course Gozo

Considerations About searching underwater… Bottom Flat Undulating Sloping Ropes Boats Floats Open Water Shore Size • Conditions • Hydrology • Search Item • Equipment • Position • Area • Techniques Size ITVO?

GPS coords Transits Water Weather Divers Swim lines Circular Towed Snag line Jackstay Grid BSAC AI Course Gozo

Circular Search - Setup • Essential Equipment  Shot line (12-15mm)  Shot Weight (15-25kg)  Buoy (50Kg buoyancy) • Searches must be 100%  Data line/marker  Swim line  Overlapping vision/touch BSAC AI Course Gozo Techniques

Adaptations…  Semi-circular search  Snag method BSAC AI Course Gozo

Unsuitability……  Non-tidal search area  30m radius limit*  Not suitable for slopes* Increasing saw tooth profile BSAC AI Course Gozo

Circular Search… Summary Techniques BSAC AI Course Gozo

The End Thank you BSAC AI Course Gozo