Li Yue didn't waste any time He rushed to ten thousand meters height and hovered before giving a command to Dummy and made a charging posture!
"3, 2, 1! Let's go!"
Li Yue's body launched like a cannonball. He was several times faster than bullets, breaking sound barrier almost instantly. The conical shock appeared for mere moments.
He was accelerating parallel to the ground, intent to measure his maximum speed!
"'Mach 2... Mach 7... Mach 11... Mach 14... Mach 15!"
Li Yue discovered that he couldn't go past Mach 15! But he didn't stop and continued maintaining this speed!
After flying for a few dozen seconds, he suddenly saw a black dot in the distance. Looking closely, it was a huge plane!
If he didn't slow down or stop, it would take seconds until he crashed to the plane! Moreover, with his current speed, he would pierce through and destroy the plane!
Li Yue would of course be unharmed, but the plane's passenger would definitely all die!
Yet, Li Yue kept flying straight until he caught up with the plane. Of course, he didn't intend to kill everyone on the plane, so he changed his trajectory in the last moments and flew over the plane!
...
"Oh, my God! What just flew over our heads?"
The plane was on autopilot, as it was supposed to be cruising steadily. The pilot obviously didn't think something would happen ten thousand meters in the sky! But he suddenly saw a shadow flash past him, and his jaw almost dropped!
"The hell's wrong with you? You scared me!"
The copilot had his head lowered, so he didn't see Li Yue's figure and instead was shocked by the captain's exclamation. He looked out, but there was nothing, so he complained to the captain!
"Just now, I saw something fly above us, but it disappeared in an instant! It's small, so it can't be a plane. It's more person-sized...could it be Iron Man?"
The captain explained to the copilot in an excited tone.
"Do you think we're on a racetrack? We're ten kilometers above the ground! And we're flying over 868 kilometers per hour. Not even Iron Man could outpace us by that much, and you said it disappeared in an instant?
"Even if it was that much faster than us, I should be able to see its tail, but I didn't see anything! And our radar also didn't detect anything, so aren't you just seeing things?"
The copilot dismissed the captain's claim. He thought the captain was just seeing things!
"Eh, then maybe I was really seeing things!"
The captain glanced at the radar panel between the myriad aircraft instruments. It detected no abnormality. Was he really just seeing things?
But before he could convince himself, the plane suddenly jolt violently.
The turbulence was similar to when they hit a strong air current, but their plane was currently flying at about ten thousand meters. There shouldn't be any air current strong enough at this height!
"Fuck, we're in the stratosphere! Where the hell did a strong current like that come from?! Forget about the shadow or whatever, just hurry up and right the plane! I'll address the passenger!
The copilot cried in surprise before beginning his part of the job!
The turbulence wasn't strong enough to do any damage—indeed, it was a regular occurrence at lower altitude, they were currently flying ten thousand meters in the sky, so they can't be careless. The smallest mistake can cause a major accident that would cost them all their lives!
...
Li Yue didn't slow down after barely avoiding the plane. He continued flying at full speed, testing how much stamina was consumed by flying full speed.
However, even after flying for half an hour, Li Yue didn't feel tired at all. He encountered several other airplanes on the way, avoiding them the same way without slowing down or stopping!
"Dummy, what was my top speed?"
Instead of continuing the test to find out if he'll ever get tired, he stopped and asked Dummy about the measurement!
"Sir, your fastest speed just now was 5,208 meters per second, close to Mach 15.3! You flew for a total of 28 minutes and 56 seconds, covering a total distance of 8848 kilometers!"
With a speed of 15 times the speed of sound, in less than half an hour of flying, he had already flown nearly 9,000 kilometers. For comparison, Earth's circumference along the equator was only 40,000 kilometers.
Therefore, when at full speed, he could fly around the Earth in about two and a half hours!
It was a phenomenal data. Nobody would ever believe that it was real! After all, the fastest fighter jet in Marvel universe so far had top speed less than Mach 5, so Li Yue reached more than triple that speed!
However, Li Yue was still a little dissatisfied in his heart, because he remembered that Superman's top flying speed in the movies was about Mach 25 to 30, almost twice his own record!
Superman's strength was measured around ten thousand tons, while Li Yue's was only around five to six tons!
Moreover, there were many special skills that he did not have, such as freezing breath and biological force field...
Therefore, even his current heights was a far cry compared to the real Superman!
...
Li Yue finally enjoyed the pleasure of flying at a high speed. He also measured his top strength and top flying speed!
He carefully inspected the Vibranium combat suit that he was wearing. It didn't show any damage even after long flight at high speed. All of Li Yue's goal had been reached with perfect mark!
Although his strength could not be compared to the real Superman, it was enough to be invincible in Marvel universe! That's why Li Yue dared to put his flight ability in full display!
What is the point of having superhuman strength and at-will teleportation if he was overly careful in doing everything? Just go hide in a hole somewhere!
He wasn't afraid that others would discover his strength, as they must already have through his supersonic flight stunt.
He could almost feel that the countless surveillance satellites in the sky were turning to watch him, with various secretive personnel scrutinizing his every move! Including the military forces!
But Li Yue didn't care! He didn't even have any real objective: he only did it because he want to. This is the confidence brought by strength, because nothing could truly challenge him!
"Should I give them a good show? Just to deter any Tom, Dick, or Harry that would give me trouble!"
Yes, Li Yue was having a dilemma while floating in the wind! That thought suddenly appeared in his mind, and he wanted to really put it into actions!
He had read a lot of novel back on his original Earth, where a character's special ability was discovered, attracting many troublesome forces. That was why he wanted to make the first "move!"
"But I don't really have a reference point to show my strength! What should I do…"
Li Yue hovered in the air, thinking hard...