Tiancai UAVs are Chinese UAVs developed by Anqing Tiancai (Tian-Cai, meaning Sky Colorful) Aviation Model Science and Technology Co., Ltd. (Tiancai,安庆市天彩航空模型科技有限公司). Originally a successful model aircraft manufacturer, Tiancai has expanded its business into UAV arena based on the experience gained in developing model aircraft.
Unmanned blimps
As of 2014, a total of seven UAVs developed by Tiancai have been revealed and marketed, and all of them are unmanned blimps intended for aerial advertising, cinematography, photography and survey missions. Industrial application of these unmanned blimps are mainly in the power line inspection and installation missions. These unmanned blimps are classified by their respective length
References
Tiancai UAV Wikipedia(Text) CC BY-SA