Water drag change (for school project)

[Harald Kerbal]

I am currently working on a school project, and we had to make a transport that solves an issue. Me and my group decided a marine plane, that can land on water on bad wheather. I did find out how to make the wings not rip off, neiter the engines, but now it can't take off. The plane is very small (MK2 for those who ask), with folding wings, capable of archiving supersonic speeds (not optimized for it since it's a public transport), yet it only gets about 24m/s, not enough for takeoff. Is there a way to change the water drag coeficient so that it maches realistic drag and not some sort of pitch ocean?

Edited January 16 by Harald Kerbal
changed the title, forgor to update text

[Harald Kerbal]

It's on the cheat menu. how do i close this topic