Sagami (AOE-421) is the only ship of her type in the Japanese Maritime Self-Defense Force.

[1] Immediately after the bow, a one-story deck room is provided up to the stern across the bridge, and the 01 deck on the upper surface is also the entire deck.

The bridge structure has a five-story structure counting from the main deck, and the living quarters are centrally located here.

On the other hand, there are three layers of decks inside the hull, but the central part of the hull is a hull compartment, and a tank is provided to store liquid supplies and ballast water through all of these decks.

Commissioned on 30 March 1979 with the hull number AOE-421.