i had guessed that much but i mean still they fly somewhat well even without being designed for it also i might see if i can fix the slight issue by just adding some weight to the nose

The planes I've created haven't been built for the aerodynamic physics mod. That's why the fly weird when you use it.

also it seems your planes fly weirdly with the aerodynamic physics mod on a slight pull up if i remember correctly

it still works like that if you add the aerodynamic physics mod but it does seem a bit unstable when just floating but when i fist spawn it i have to place thrusters so it could be Center of mass is off some cause of missing engines to start off as after it floats mostly fine

Its meant to sit low on the back end. Once you get up to high speed there seems to be drag that pulls the bow down. But that was a while ago and it seems things may have changed with the water mod changes.

this Requires a Update as the stern sits so low water is up over the deck and halfway up the batteries but that could just be me not knowing how its meant to sit in the water

ngl, builds like these make me really anticipate what you make next :)

and yet another masterpiece (though slightly redundant given the IEC's speedboats, though they're meant for defense and patrol in all fairness) and I love it!