This is the original DeWalt HydroFoam video that first got me interested in hydrofoams.
You can see it has plenty of power to take off and fly vertically, which is what I want. It also has enough power to start out on the grass and run on the grass, which is also what I want.
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These are the other names I have found that people also call the Hydro-Foam
Piranha hydrofoam
Red's Miss Hangar One
Hydro Goose
Spaceship
Hydro Kat
Miss Fanfold - this was the original name for the first one.