A newly developed combustion jet propulsion. There are high expectations for its transformation into combat potential as a Japanese developed production-ready jet engine.
- Used in upgrading the Prototype Keiun (Carrier-based Reconnaissance Model) into a Jet Keiun Kai via Akashi's Improvement Arsenal. It is also used for the quest to acquire the Kikka Kai.
- Can be acquired from Quests D21 and F47.
- Offered as part of the November 2015 ranking rewards.
- The item is likely based off the Ishikawajima (石川島) Ne-20 jet engine, which was one of the first operational turbojet engines developed in Japan, and was used on the Nakajima Kikka, Japan's first jet-powered aircraft.
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