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Deleted User YDKXO
Guest
Yes thats true but the other supposed advantage of IPS is fuel efficiency (although thats far from proven in flybridge boats) so I guess that using jackshafts allows the builder to claim that the boat has the balance of a shaftdrive boat with the fuel efficiency of IPS. Actually I also think it depends where the weight of fuel tanks are located. If they are placed forward, then that allows the engines to be further aft but if they are outboard of the engines, as is normal with Brit builders, then the engines may have to be further forwardCan someone explain the point of IPS on jack shafts?
I thought that one of the points of IPS was to free up space otherwise taken up by the engines.