บท 178: Chapter 13: Speed of 1800 kilometers per hour? !【Seeking Subscription】_1

How fast must it be at full speed!

"This…" Jia Yan was astonished.

He understood clearly that breaking the sound barrier might not seem overly fast to a regular fighter jet, as the F-15J he dealt with not long ago theoretically reached top speeds of up to 2,700 kilometers per hour. Compared to this terrifying speed, 1,200 kilometers per hour was nothing special.

But still, Jia Yan wasn't at full speed either. He could even feel that he was barely able to sustain this speed, maintaining it for at least half an hour of cruising flight!