The YDT-01 class is a class of diving support vessel of the Japan Maritime Self-Defense Force (JMSDF).
Traditionally, an auxiliary vessel (YAS), which is a modified retired minesweeper, has been used to support the transportation and work of the Explosive Ordnance Corps (EOD). However, these boats are aging, and since they are modified boats, it has been pointed out that they are unreasonable in terms of placement and lack of equipment. For this reason, this model was planned as a purposefully newly designed ship.[1]
Construction was approved as a new ship type in 1998, and the first and second ships were laid down on June 14, 1999.[2]
| Name | Builders | Laid down | Commissioned | Home port |
|---|---|---|---|---|
| YDT 01 | Yokohama Yacht Company, Yokohama | June 1999 | 24 March 2000 | Maizuru |
| YDT 02 | Ominato | |||
| YDT 03 | Maehata Shipbuilding, Nagasaki | July 2000 | 24 March 2001 | Yokosuka |
| YDT 04 | April 2001 | 18 December 2001 | Kure | |
| YDT 05 | April 2002 | 14 March 2003 | Sasebo | |
| YDT 06 | Okinawa |