''Developed by Yokosuka Naval Air Technical Arsenal, Keiun is the latest state-of-the-art prototype high-altitude reconnaissance aircraft. The Keiun is a unique design with all sorts of new innovations and now powered by the Ne turbojet engine, this is what made the plane become a jet fighter-bomber. | ''Developed by Yokosuka Naval Air Technical Arsenal, Keiun is the latest state-of-the-art prototype high-altitude reconnaissance aircraft. The Keiun is a unique design with all sorts of new innovations and now powered by the Ne turbojet engine, this is what made the plane become a jet fighter-bomber. |