Japanese Maritime Self Defence Force's special administrative boat (reception boat) “Hashidate” (はしだて) and underwater disposal mother ship (diving tender) Type 1 “YDT 03” at Yokosuka on 22nd March 2019

Hashidate:
Builder: Hitachi Zosen's Kanagawa Works, Kawasaki
Displacements: 400 light, 490 full load
Length overall: 62.0 m
Engines: 2 x Niigata type 16V 16 FX diesels, 5,500 b.h.p.
Speed: 20 knots
Complement: 29
Commissioned: 30th November 1999
Function: mainly for receptions, parties etc.(but has no sleeping accommodation for visitors), but can (and has been) used as an emergency command vessel & temporary medical/hospital vessel)

YDT 03
Builder: Maehata Zosen, Sasebo
Displacements: 300 standard, 440 full load
Length overall: 46.0 m
Engines: 2 x Niigata type 6 NSDL diesels, 1,500 b.h.p.
Speed: 12 knots
Complement: 15 crew & up to 15 diving personnel
Completed: 21st March 2001