"Beep beep beep, beep beep beep, beep beep beep."

"Alarm, alarm, alarm."

"The engine has entered overclocking mode."

At this moment, everyone in the flight control center on the ground could clearly hear the alarm sounding in the cockpit.

"Calling the gyrfalcon, calling the gyrfalcon."

Su Jianjun immediately picked up the walkie-talkie and started making calls.

"Slow down, slow down, slow down."

An engine enters overclocking mode, just like a computer.

It can directly unleash the same principle as rapidly processing tasks and improving performance.

Yuan Yi did this to test the limits of this engine.

When Yuan Yi saw Mach 41 displayed on his helmet.

A smile appeared in his eyes.

Yuan Yi remained silent after hearing the report on the communicator.

At this moment, Su Jianjun in the flight control center also knew that Yuan Yi was fully focused on piloting the fighter jet.

Therefore, he did not continue calling, trusting that Yuan Yi had his own judgment.

After all, the blueprints and information for this fighter jet were provided by Yuan Yi.

And so, Yuan Yi continued flying at the maximum speed of Mach 40 until the fuel level reached the warning line.

Yuan Yi then began to slow down.

After discussing Mach 5, Yuan Yi began to contact Su Jianjun.

"Haidongqing calling number one."

"I need to work harder."

"Number One received. The wet nurse is in place. Please proceed to coordinates *** East Longitude *** North Latitude *** to refuel."

In order to fly for a longer period of time this time, Su Jianjun directly found several "airborne nurses" to provide fuel for Yuan Yi.

"Received. Next, I will test the stealth performance."

"After refueling, I will proactively disconnect all signal sources."

"Received, Number One. I have already contacted all the radar stations."

"Test with confidence!!!"