Found 2 3D-models for “jet kayak” across many websites

#impeller jet#fun#motorized impeller#sturdy#kayak#3dprintable#speed#impeller#water#5blade
ThingiverseThingiverse
3d printed water jet pump

3d printed water jet pump

ThingiverseThingiverse
water jet drive - redesigned for my purposes -

water jet drive - redesigned for my purposes -

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