Great Dangaioh is a tV series anime that premiered in spring 2001, produced by AIC.

About the production: there are 13 episodes of about 23 minutes and its current status is "finished".

Its main genres are action, mecha and sci-fi, with themes such as Real Robot.

On AniList, Great Dangaioh has an average score of 58%, an average score, and appears on 1,530 users' lists.

The franchise continues in or follows from: Haja Taisei Dangaiou.

A mysterious explosion on Futagami Island begins a new chapter in the Dangaioh mythos! Led by the evil Professor Katou, a band of warriors calling themselves the "Tartarus Knights" have begun their campaign to lay waste to the world by way of a small research station on Futagami Island. Katou`s victory seems almost certain until he encounters an advanced fortress guarding the island. From it, a group of three humanoid robots are launched - Dangaioh! (Source: AniDB)

Official synopsis from AniList.