The type of aircraft the JCG plans to introduce is called a vertical takeoff and landing or VTOL. They can fly faster and are sturdier than smaller drones, and able to fly for longer periods of time.
Currently the Japanese Navy has 155 combat and support ships. There are four helicopter carriers, 24 submarines, 36 destroyers, six Mogami class frigates, 21 mine warfare ships, six 240 ton patrol ...