FIFISH X1

FIFISH X1 is QYSEA's offshore remotely operated underwater vehicle for subsea inspection and non-destructive testing. It is rated to 350 metres, carries up to 15 kilograms and uses six thrusters to reach 4.5 knots while holding station in currents up to four knots with forward and downward Doppler velocity logs.

Four powered Q-Interface ports support modular skids for ultrasonic thickness measurement, cathodic-protection testing, manipulators, imaging sonar and other tools, with swaps designed to take about five minutes. U-INS Plus combines navigation, route planning and point marking, while dual 4K cameras and 12,000-lumen lighting support inspection. Direct tether power enables continuous operation; the exact measurement function follows the installed NDT payload.