There are lots of videos of similar Thai fireworks, but I think is the largest one I've seen. Also, based on my amateur rocketry experience, this is completely

There are lots of videos of similar Thai fireworks, but I think is the largest one I've seen. Also, based on my amateur rocketry experience, this is completely feasible, if rather dangerous. 99% sure it is a real video. I'm not sure why it makes the 'chuffing' noise though. Anyone know?