Mission-based, side imaging training for the Humminbird HELIX designed for Fire-Rescue, Law Enforcement and Park Service personnel who use the Humminbird HELIX for search and recovery operations. The video provides explanations of Humminbird HELIX operation, descriptions of sonar capabilities, and side imaging data analysis. Image analysis includes a chapter on drowning victim target identification. Your HELIX version (there are 4) and software version may be slightly different but the general concepts apply to all HELIX systems. Published (2018).