SOLVED:
For the stability, I increased gyro strenght and played arount with dead weights in the hidden buoyant blocks (the hull was already on may buoyancy)
Moved the props a little higher, seems like they work to around 5m depth.
I'll leave it here just in case anyone needs it
Hey
Yesterday I posted a WIP ship of mine, and I'm really nearing completion, but have some complications
First is underwater propellers
I read I need to increase chord scale in XML which I did to enormous levels, that already made the screws look retarded (lol) but still won't turn until the ship capsizes and reaches a certain depth by rolling upwards.
The next one is capsizing
I know I have to set the COM as low as I can but I also added a really strong gyro and superbuoyant fuselage blocks at the waterline, still she slowly lists and capsizes. I may figure this one out myself, but the props really bother me how I can't make them work.
Here's a reference pic how deep the props are
This is my very fist ship build so any help and tips are appreciated
Solved it by moving the props higher
Looks a bit dumb, but hey it works
I seem like I got the stability right
Added max dead weight to the buoyant blocks inside and a little bit more power to the gyro and seems fine.
Haven't tought about scaling the props, thanks
I'll keep trying cause I wanna publish her before the weekend, now she's fully ready, just need to solve the propblem (dat pun)
For the stabilizing part, put buoyant parts along the waterline and not inside your ship. In this way, if it bends, it loses half of buoyancy and fall back on the other side. If it doesn’t work, you are having too much buoyancy.
Just diminish the scale of your prop if your chord makes it awful, I made some submarine with the chords, so you should be able to make a ship