We are globally recruiting masters who are interested in experiencing the infinite possibilities of "Made in China" with us in the UAV industry and creating an era of unmanned intelligence. Here we provide you with a direct train to join the United Aircraft Team. Check the online exam questions and offer your answers. There will be a chance to win a super-competitive position.

No age limit, no limit on educational background, no limit on major, and no limit on school. Those who hope to make great achievements in the fields of mathematics, computer, algorithm, intelligent manufacturing, chips, materials, chemistry and others and have the ambition to become masters come join the United Aircraft’s scientist team. United Aircraft provides you with world-class challenging topics, industry-leading colleagues, global vision, platforms, and resources.

If you are interested in exploring the unknown, creating the future, and using your intelligence and wisdom to boost the high-quality development of United Aircraft, take the challenge, break your brain limit, and submit your resume with the courage to offer your answer.

1. What is the difference between rotor fluid-structure interaction analysis and general fluid-structure interaction analysis?

2. Why can't the advanced computational fluid dynamics method in rotor aerodynamic design completely replace the traditional fluid mechanics analysis method?

3. What is the fundamental difference between the harmonic balance method and the time finite element method used to solve periodic stability problems? Do they have stability problems?

4. Attempt to explain from the perspective of rotor aerodynamics why tiltrotor aircraft is prone to accidents during helicopter mode descent.