sol3 ayane flight speed

Ayane giggled but moved on. "Well, I'm sure you've already looked me up, but my principal power is self-powered flight."

"Yeah, apparently it's pretty rare."

"I guess, but it doesn't feel very special to me," said Ayane.

"What's your speed limit?"

"Mach 1.38 in Earth's atmosphere, at sea level."

Emma nearly choked on a piece of potato. "What?! You can break the sound barrier?!"

"It's not that impressive," said Ayane bashfully. "I mean, any given air supremacy drone in the Army can achieve that easily."

(Solemnis, Chapter 3)