We’ve covered George Katz and his water rocket projects here in the past. In this recent video, he shows testing of a lightweight in-line parachute deployment rig, as well as some additional footage of the group’s most recent launch day.

In-line Deployment Mechanism

More:
Awesome DIY water rockets with drop-away boosters

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Homemade electric vehicles, high-powered water rockets, electricity-generating windmill, jet engine in a jam jar, and a backyard zip line!