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Ship stability issues

my boat is hell bent on flipping itself over even with PID's. Can anyone help me out? not sure what im doing wrong?

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.blueprint   Sleeper.blueprint (Size: 87.24 KB / Downloads: 24)

I haven't looked at it, but it likely has too high of a CoM (center of mass), meaning it is must stable upside down. You can fix it by adding a large keel, decreasing weight at the top, or using strong PIDs, though natural stabilization is always better. You can also use hydrofoils on the bow, rear, and either side set to 45* where the water line should be, if your vehicle will be always moving. I'll check it out tonight if I have the time.
(2017-04-20, 06:54 PM)Hikari Wrote: I made something that has an impact of a type 1a supernova. The projectile already breaks laws of physics by going way past the speed of light.

2000mm HE Dakka Enthusiast

Remove the propellers that you're using for stability, and replace the wooden beams they're mounted on with lead.

Edit: You've built the ship sideways. Use the rotate 90 degrees option when you load it to get it facing the right way. Seems to work okay like that. Also set the turning propellers at the back to reverse.

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