Take a look at it in action:
This is from about 25 yards away. We don't get to see the whole flight, but we get enough of it to estimate its terminal velocity. Using a program out of Kenyon College, I tracked its motion frame-by-frame.
I calibrated the distances in the video with the height of my brother-in-law. Ammon is ~68 inches tall, which makes him about 13 pixels tall at 25 yards.
The green "plusses" in the frame on the right are the data points I used to figure out the terminal velocity of the rocket:
A couple of conclusions from this:
1. That max speed is 38 meters per second, or about 90 miles an hour!
2. Think I'm just too white and nerdy.