A [b]V[/b] or [b]U[/b]-shaped head attachment commonly found on Gundams and similar [[mobile suit]]s, where they function as potent [[radio antenna]]s or other sensory and detection equipment. They may be a single piece, such as on the [[RX-78-2]], have protrusions like on the [[Strike Freedom Gundam|Strike Freedom]], be comprised of detached segments like [[Gundam Harute|Harute]]'s v-fin, or be made of energy or flames like on the [[Beginning Gundam]] and [[Phantom Gundam|Phantom]].

Please note that this tag does not necessarily implicate [[Gundam]] or a parody of the franchise, as mecha from other series may have the same design element.  Examples of this include [[Prowl (transformers)|]] and [[Strongarm_(transformers)|]] from [[Transformers]] and the [[Huckebein]] series from [[Super Robot Wars]].

Similarly, not every Gundam features a v-fin, such as the [[Turn A Gundam (mobile suit)|Turn A]], which has a [[mustache]], [[G-Self]], which has [[horns]], and [[Gundam Ez8|Ez-8]], which has an [[radio antenna|antenna]].

In [[real life]] the V-fins were inspired by the crests found on ancient [[Japan]]ese [[kabuto (helmet)|]] helmets.
V字アンテナ(ガンダム) V字アンテナ