After some thought my incredible brain power finally finished to research advanced vehicle collision fubars and I realized "Ocean liners" must change the behaviour of vehicles to accomodate for the movement on water, but not on land. And that was it. And I think it was the same thing back in the day ...

Okay. Further experimentation yielded the following results:

- advanced aerodynamics research does not solve the problem

- the problem changes when I remove my personal armor, the plane moves, but on the ground (testing that I ran over a good part of my factory by accident... ouch...) and ...

Something weird is going on with my black market gunship... (love that mod, total alternative economy there...)

Used the latest version on 0.14 with no issues, awesome as always (and even some new toys since my last visit, flying fortress... goodness, that machine gun. 6K rpm...)
Used the same ...