Bouba
Well-Known Member
He’s buying a brand new boat, he won’t be allowed to fix anythingI asked ^^^
“ Shane how technology minded are you ? “
let’s revisit the clutch issue , which has improved but basically still flawed and glossed over seemingly, folks enveloped in the marketing BS .
marine gearboxes and clutches
Then allow me to attempt to lay it out as simply as I can .
i,ll use pictures .
Hers a cone clutch note the surface area limitations in a outdrive or pod .A pod ( IPS ) is just a bigger outdrive in clutch terms .
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Think of the mass , the momentum of the boat( s) over the years as they have got bigger ......We are up to a 52 specifically , but IPS instals are creeping up the ladder mass wise .Below is very simple pic of how cone clutches work ....think of the surface area available, the potential SA limited by the leg size .
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Now see typical clutch packs of a conventional “twin disc“ set up ....Hurth and TD .As the masses of the boats increase in applications so does the clutch packs .....sized for longevity.
But crucially see with the clutch packs how you can adjust the SA in line with the mass .......thus if done correctly mating the Hp sent out by the motor with the mass and momentum of the boat .
So with IPS even with a computer ECU / hydraulics controller attempting to ease the cones engagement.....you are in a highway to rapid wear if there s a lot of FRFRFR and more so if you try to use the joystick , because of the huge mass and SA mismatch is amplified by the multiple engagements .
Theres no way around this .
Big boats needs shafts + proper twin discs multi pack wet clutches .
Cone clutches are the stuff of sterndrive little boats .....who’s mass / momentum can cope .









