Board Thread:Off-Topic Discussion/@comment-32981004-20180130075421/@comment-32070106-20180130163237

I personally think it'd be a deeper and more spread out noise than a modern dragonfly. It would be more punctuated as the dragonfly would flap its wings less due to the size of its wings.

Then again, I could be wrong, and it could have to flap more to generate more lift.