Did you and your colleagues volunteer Crabster to help out at the ferry site? Or did government officials request your help?

When I knew the rescue team had serious difficulties due to the high current and turbid water at the accident area. I called Dr. Suh direct general of KRISO and talked about Crabster’s functions and possibilities for the helping of rescue. Task force team of my institute reviewed underwater robots made in KRISO and agreed to send Crabster to the area. The decision was not easy because Crabster was still under development and the performance was not fully verified. Two days later, government requested our help for surveying of sunken Sewol. We moved the Crabster system from Namyangju to Jindo next day, 21 April.