my quick Blender model of Synergy Aircraft’s – Synergy
The Synergy is a proposed five-seat, single-engine, kit aircraft, designed by John McGinnis of Kalispell, Montana and intended for production by his company, Synergy Aircraft.
The aircraft’s closed wing design, termed a “double box tail”, is intended to lower induced drag and be stall resistant. – full wikipedia page
you can download the blender file here
I modelled this as a quick modelling/rendering exercise for a client who is designing a very different kind of aircraft. can’t talk about that coz of the NDA(Non Disclosure Agreement)