This is one of the better designs I have seen for a Kitfox trailer.

The boat trailer style undercarriage provides a long distance from the hitch to the trailer wheels which should reduce wind effects and sway.
The CG of the airplane is behind the trailer wheels which helps offset the normally heavy tongue load.
Hitch to cargo box distance allows near 90 degree backing angle without jack knife interference.
Low frontal area reduces towing drag.
Wheel well undercut carried forward simplifies skeleton attachment to trailer frame.

Good design all around.


JTP