The aircraft featured unusual twin horizontal tail structures supported by three vertical tail surfaces. The logo is a white crane on a red vertical tail fin. It is a braced high-wing monoplane with twin vertical tail surfaces. The tail markings consisted of a red-and-white comet design on the vertical tail. A 2020 study has posited that sauropterygians relied on vertical tail strokes much like cetaceans. Often navigational radio or airband transceiver antennas are placed on or inside the vertical tail. It featured all moving wing tips for roll control and an all moving vertical tail. He was referring to controllability issues with the small vertical tail. The tall, swept vertical tail has an inset rudder. The F-100 was modified with a larger vertical tail to increase its directional stability. These also had a more vertical tail fin, used for a powerful propulsive stroke. The tail vertical rudder meter set a vertical gyrocompass to control the vertical tail rudders. Fossilised bony fin rays show large elongated pectoral fins and a tall vertical tail fin. Most notably, the Ju 187 incorporated a rotating vertical tail. The wing was slightly enlarged in area, and a redesigned vertical tail surface was used.