Introducing the Wilderness Systems Pedal Drive * See PDF file at bottom

Is there a "Fat Boy" prop? Hate to be just spinnin my wheels.....

Doubt it. Native experimented with props for a long time but felt the higher pitch props provided too much resistance for efficient pedaling. That's the reason all the others are copying, excuse me, utilizing the similar two blade prop design of Native, with maybe a slight pitch change/blade length.

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You can't use anything but a 2 blade prop, unless the hole in the kayak is as wide as you prop is long. Duh! 12" wide hole would be a bit crazy.

the new old town pedal drive has a T shaped hole, not sure if they're trying a three blade prop or not.