An autonomous maneuvering decision algorithm based on experiences of pilots and tactics theories in one-

to-one air combat is proposed. Firstly a method of situation assessment based on n¨aive Bayes is addressed, in which

the historical situation is taken into consideration when predicting the next moment situation. Then preferences of

experienced pilots and tactics theories are mathematically modeled. This model is more flexible and extensible than

that models made up from a bunch of rules, because the mathematical model is easier to code and can adaptively adjust

flying state of aircraft according to the output of situation assessment. Finally a maneuvering scoring function and a

maneuvering matrix are described. The whole process of combating is regarded as a static complete information game

where an optimal maneuvering solution by Nash equilibrium solution exists. Simulations are devised by one unmanned

aircraft running the proposed algorithm against one manned aircraft adversary. Results show that the unmanned aircraft

will reach an advantageous situation regardless of starting from offensive or defensive state.