Hydrofoil on KSP 1.9.1

Tonight I decided to put KSP 1.9.1 on test on something I value very much : water ships.

TL;DR: it fails miserabily

I'm toying with hydrofoils since KSP 1.4, maritime crafts are my second most favorite type of crafts - hydroplanes? Just love them.

So I made this ship, a hydrofoiled MK3 fuselage. 64 PAX and 2 pilots being pushed over the waves by 4 Wheesleys.

It worked perfectly on KSP 1.7.3, beautifully surfed the Kerbin seas at > 70 m/s. Not bad for a 53 tons fatty lady.

(more comments on the following pictures!)