Police airship



Police airships are large, metal, zeppelin-like vehicles used in Republic City by the police force to patrol the city from above.

History
Several of these ships patrol the skies of Republic City each day, searching the streets below for signs of crime. When Avatar Korra had her run-in with the Triple Threat Triad, the police arrived in one of these ships. When it became apparent to Korra that the police wanted to apprehend her as well, she and her polar bear dog, Naga, made a run for it. Although she easily outran the metalbending cops on foot, the police force in the airship was able to keep up, eventually managing to trap her and Naga in metal wires. They were suspended in the air under the ship with the cables and transported back to the police headquarters.

Design
The design of these aircraft are very similar to the Fire Nation airships used during the final stages of the Hundred Year War. The large zeppelin-like vessels are structured primarily of metal and employ multiple propeller sets to move. The underside of the craft features a retractable metal panel on the side, which serves as the launch point for metalbenders who're about to jump out to pursue criminals on foot. There is also a cockpit from which metalbenders launch metal wires from the inside of the ship, enabling the crew to apprehend criminals and fugitives from the safety of the craft. The ships are equipped with loud alarm horns and megaphones in order to signal the police's arrival and to make their demands known to those on the ground. These airships seem considerably faster and easier to navigate than airships used in warfare. The Chinese characters 警察, which mean "police", are written on the airship.