RE: What is this!
Possibly a Sig Hog Bipe ??
Really need a side view to see the wing cabanes and struts, but from what pics you have and its engine size, it would be my guess..
See this Image Link here for Y! Images >[link=http://images.search.yahoo.com/search/images;_ylt=A0oGkkTMb9tJzkABwklXNyoA?ei=UTF-8&p=Sig%20Hog%20Bipe&fr2=tab-web&fr=moz2]Hog Bipe Pics[/link]