https://www.marinetechnologynews.com/videos/video/new-ship-hull-crawler-technology-100127
New Ship Hull Crawler Technology
Greensea’s New Ship Hull Crawler Technology Launches with VideoRay Defender ROV: Easy-to-Operate Crawler Performs Robotic Inspection and Intervention. Video shows the Defender attach a Defender to a ship hull without magnetics and allows the operator to “drive” the ROV and payloads over the hull.