252, for Lin Mo, the big bosses of sea, land, and air started arguing!

Not only were the on-site scientific researchers and heads of the three armed forces watching the competition.

In a conference room in the Imperial Capital, a hundred kilometers away, a group of Grand Xia's senior officials were also paying close attention to the final outcome of this grand military exercise.

When they saw that the Air Force had equipped the J-10 fighter jet with a vector engine, every face was filled with surprise.

Murmurs and whispers kept arising in the conference room.

"What's going on?"

"The Air Force has really kept a tight lid on this, silently researching vector engines?"

"Goodness, vertical takeoff took less than 50 seconds, isn't that just as good as France's most advanced vector engine?"