Ozai's personal airship

Fire Lord Ozai's personal airship is an enormous Fire Nation Air Force airship used by Phoenix King Ozai.

Crew
The crew, along with the inside of the ship, was never seen, but it is almost certain that it was piloted by royal guards and engineers like the rest of the fleet, and maybe an airship captain. It is unknown if any of the crew survived after Aang caused the ship to crash, but it is possible since near the end of the episode it is shown that the crews of the other airships survived.

Design
The ship was designed after a standard Fire Nation airship, but was much larger. Due to his huge ego, Ozai wasn't content with having the same airship as the rest of his men, so he ordered his engineers to build a bigger one. On the front was a golden phoenix instead of the bronze dragon head that the other ships had. The ship also had walkways on its underbelly where Firebenders stood and burned enemy targets. The airship also had the addition of an extra pair of intake pipes into the engines, giving a much faster airspeed than the standard airship design.

History
The ship was first made a while after the battle for the Northern Air Temple. The battle was a loss for the Fire Nation, but afterwards an experimental war balloon, made by the Mechanist, was captured. It was used for some time but eventually it was outdated and larger airships replaced it.

Ozai's airship was constructed shortly before the final battle in which Fire Lord Ozai and Avatar Aang faced off. Before that, his airship was constructed at a secret island off the coast of the Earth Kingdom. When the Fleet departed the island, Sokka, Toph, and Suki arrived and managed to jump onto one of the regular airships, and they gave chase for Ozai's airship. However, Ozai's airship proved remarkably fast, leaving them unable to catch up with him.

However, just after the airship fleet proceeded to lay waste to the Earth Kingdom, Aang arrived and struck Ozai's airship with comet-enhanced firebending, striking the airship's rotors and bringing it down. Ozai abandoned his airship to carry out his final showdown with the Avatar, leaving his personal airship to crash into the forest below, rendering it inoperable.

By the battle's end, only a single airship survived the battle, flown by Sokka and his friends to ram the rest of the fleet. Ozai's airship was still largely intact after it crashed however, and may have been recovered and broken down into scrap after the War's end.