A transit-hopper was a type of transport starship used by the Klingon Empire in the 23rd century.
Service history and disposition[]
This type of vessel had four engines, one at the bottom of the ship plus one in each of three nacelles. It had an airlock amidships.
In the 2260s decade, at least one transit-hopper was stationed at the Klingon outpost on Scaptar.
In the year 2265, when the mutinying crew of the starship Dorado approached Scaptar, Klingons offered to send a diplomatic envoy to meet with them. A transit-hopper was launched from the outpost, but instead of a delegate, it carried a masterslave robot full of deadly gas. (TOS comic: "Mutiny on the Dorado")