Outrigger center of gravity

[Ivan Kozyakov]

Hi guys!


Where should the center of gravity be on an outrigger? I've heard different theories, but most of them are for oval racing with a turnfin. My hydro-2 outrigger is a SAW-racer and doesn't use a turnfin. How do I calculate the center of gravity for it?

[Bande1]

what does it matter if its not turning? if it goes forward and doesnt plow its fine.

[Ivan Kozyakov]

what does it matter if its not turning? if it goes forward and doesnt plow its fine.

I like your idea because I have run out of space and there is nowhere to move the components anyway.
Now the sponsons are at an angle of 4-5% and then the boat stopped plowing at low speeds.

[RaceMechaniX]

For SAW riggers it is a balance of lift on the front sponsons to keep the boat "floating" and enough tail weight to keep the prop hooked up. SAW riggers will typically have a more aft CG position compared to a heat race rigger. You also have to adjust front ride pad width and inclination plus prop lift. It's mostly trial and error. Took me 9 revisions of my own design to get it right.

[Ivan Kozyakov]

For SAW riggers it is a balance of lift on the front sponsons to keep the boat "floating" and enough tail weight to keep the prop hooked up. SAW riggers will typically have a more aft CG position compared to a heat race rigger. You also have to adjust front ride pad width and inclination plus prop lift. It's mostly trial and error. Took me 9 revisions of my own design to get it right.

Thank you. I receive a new ESC and start testing with the speedometer.