looks a bit like the 'Fortress' and 'Fortress II' from gargoyles.....and owned by a Renaud corporation too (the guy who built Fortress and Fortress II was Halcyon Renaurd heh) over all i love it but i tend to love anything like this.
To echo Haeth and Breizh87, the inspiration came from any vtol craft you want to think about. The up and down configuration in flight made did draw some from prometheus but is actually closer to some old jet car concepts I saw too. The engine designs themselves really are suppose to be like futuristic jet engines (despite being gravity engines).
Can this Renaud corporation be trusted? Just replace the "u" in the company name with "r" and you have the french word for "fox". But that aside, part of the reason of why I enjoy your military stuff is because you take everything into account, from the mighty starships to the lowest spy probe. At least I think you will. Have I said this before? Ah it doesn't matter if I did. Will you also be designing sea vessels? Battleships, destroyers and the like? Just wondering.