Chapter 1272: You Call This Thing an Engine? Hardcore Proposal! _2

But all they could do was watch helplessly as everything unfolded.

This time, the "Tail Flame" was no longer purely stable like a crystal as the first one; its shape was still well-constrained—narrow at the bottom and wide at the top—but after expanding to about a 10-meter diameter, it did not disperse further, still showing formidable control.

However, on the surface of this thick cylindrical tail flame, one could see traces of the intense movement of blue flames.

Mere increase from 5% to 10% in power, yet the visual impact had multiplied several times!

What's more exaggerated was that as the "Tail Flame" volume drastically expanded, going from a small water pipe to a waterfall, the altitude it reached only decreased slightly—early on forewarned, the twelve Daxia satellites that had been stationed far on the periphery of the test area were faithfully recording.