The designation “Beituo 617‑class tug” does not appear in widely available, verifiable encyclopedic sources. Consequently, it is not recognized as an established class of vessels in publicly accessible naval reference works.
The term likely derives from Mandarin Chinese: Bei (北) meaning “north,” and Tuo (拖) meaning “tug,” combined with the hull number 617. Such naming conventions are used by the People’s Liberation Army Navy (PLAN) for auxiliary vessels, where “Beituo” denotes a northern fleet tugboat and the number identifies the individual ship.
Given the absence of reliable documentation, no definitive details regarding design specifications, construction history, operational role, or service record can be provided. Further information would require access to official PLAN publications or specialized naval registries.
