Ukaku Kagune (Japanese 羽赫, romanization ukaku, English feather-red) is spread out like feathers and is released from the shoulder area, it specializes in high speed attacks, most of the users seeming to have hugely enhanced speed. The kagune is lightweight and can be used to deliver high-speed attacks against an adversary, the primary method of attack is crystallising their kagune to deliver a high speed torrent of spike like projectiles, however whilst crystallised they are much stiffer and can't be used for short range combat. While the kagune is suited both for short-distance and long-distance attacks, short-range is considered their weakness.[1] They are able to use their kagune as a shield and some users are shown to be able to shape them into sharp blades, reminiscent of a Koukaku, to aid in close quarters, many have shown to be able to increase the flexibility of their kagune for short range combat though this makes it ill suited for their distinctive long range attacks.
Altogether, ukaku-type ghouls have a high chance to end the battle after a short time. However, releasing the Rc cells extremely decreases stamina. Thus, ukaku-type users lack endurance and are at a disadvantage if the battle drags on for a long time.
Ukaku kagune can use their speed and mobility to shoot down a Bikaku-type user. However, a koukaku-type user can surprise an ukaku-type user by successfully guarding against the ukaku-type user's attacks, leaving the Ukaku vulnerable to counterattacks and exhausting the ukaku-type user in the long run.