Now, China has overtaken Russia, becoming the second country in the world who has two fourth-generation fighter jets in test flight period after the United States.

However, there are not many countries in the world who can afford fourth-generation fighter jets and J-31 has to compete against T-50 of Russia and F-35 of the U. S. in the international market.

The official did not give more details but the oil-rich Gulf country's purchase of the Rafale would be a major boost for Dassault Aviation's fourth-generation combat jet.