According to the query of Meijiu.com, Feitian No.1 does not refer to a specific model of Moutai, but refers to a production batch of Moutai.

during the production of maotai liquor, different batches are produced every year, and each batch has a unique number, among which "Feitian No.1" is one of them.

Feitian Maotai and Wuxing Maotai are trademarks of Kweichow Moutai. The production process is exactly the same, with one-year production cycle and four-year storage. In terms of quality and taste, Feitian Maotai Tasting Liquor is not much different from ordinary Feitian Maotai Liquor.