We have a power cat with twin diesels. Rather than going electric only, or serial hybrid, we are thinking of at least starting by keeping the diesels and seeing how we go as a parallel hybrid.
The parallel hybrid would have a new electric motor to a speed reduction unit (two differently sized pulleys), then by a belt to a wheel attached to the prop shaft. The attachment would be after the gearbox-engine, as our gearbox can freewheel safely and the diesel would be out of gear.
We may start with one or two Thunderstruck 10kW kits or something similar.
However, I can't work out how to connect the electric motor to the prop shaft. Obviously a wheel (pulley? what do you call it?!) to run the belt on, tightly locked on the prop shaft (ours is 40mm). Preferably using a split collar to reduce maintenance cost (haulouts).
Does anyone know any solutions?
Posted by: rjmcarthur@gmail.com
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