A helicopter is a type of aircraft that achieves flight by use of a rotating wing.
In 1986, Plexicorp owned a helicopter which could be used for hauling sheets of plexiglass. (Star Trek IV: The Voyage Home)
The US National Guard of California employed helicopters during their siege on the San Francisco Sanctuary District's in 2024. (DS9: "Past Tense, Part II")
Mona Luvsitt, a character in the holosuite program Julian Bashir, Secret Agent, was an accomplished helicopter pilot. (DS9: "Our Man Bashir")