Ask the engine thrust of F35. In addition to 19 1 kN, I also read that Baidu said that the ground test run reached 2 1.57 tons, which is true.

Of course it's bullshit. 19 1KN is the current conservative data, that is, the engine can run reliably for a long time without any problem when it reaches this thrust. In the ground test, the potential of the engine can be maximized. The United States has an absolute leading strength in the field of aero-engines, and it is normal to exceed 20 tons. 18 ton thrust is old, and the inlet cannot produce engine thrust. According to the current trend, it is normal that the thrust of F 135 or F 136 exceeds 20 tons when F35 is in service.