Launching model rockets with a controlled landing (less likelihood of property damage or fires). Learning about the components. Folding fins make it easier to transport without snapping one (hopefully). Trigger vs button launch isn't that big of deal, although might have better safety options compared to standard model rocket launch buttons.

> What nonviolent application are you imagining for a gps-guided rocket that is launched by pulling a gun trigger on a hand held mount?

A launcher for a climbing rope or grappling hook. Have you ever tried getting a rope up over a branch on a very tall tree?

Not joking - I considered it as a hobby project years ago until I discovered how hard it would be to do legally.

Ukraine needs more cheap weapons.