The tsik vai, a biological atmospheric vehicle employed by the Yuuzhan Vong, functioned as a reconnaissance vessel. Its appearance was similar to a manta ray, and it possessed a neck pouch used for communication with other vehicles nearby. This pouch expanded and became a vibrant red color to signal other tsik vai. The craft was navigated by a dovin basal, which was sensitive to gravity, and featured a see-through cockpit designed to accommodate a single pilot. Its pliable wings and structures akin to gills produced a whining sound during flight. These "gills" worked as inlet valves. Furthermore, the tsik vai was equipped with multiple lengthy tentacles for capturing captives.
These vehicles launched netting beetles and operated according to lav peq patterns during their missions.