Originally posted by ghostofpf1
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The John Deere RJ-5000 uses the steerable outdrive from a Graupner B-24 coupled to a geared, 7.2V Speed 400 turning a really large, but very flat pitch, submerged, 3-bladed prop. A 15-amp reversible "Viper" Marine ESC handles the power system with ease.
It's nowhere near as fast as a jet-powered boogie board, but it can harvest a day's worth of crops on one charge.
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