>Anyone can throw together a 3D rendering of a jet with extra wings // Seems not as the first image either has the wings/wing tips on upside down or is missing

>Anyone can throw together a 3D rendering of a jet with extra wings // Seems not as the first image either has the wings/wing tips on upside down or is missing the upward facing winglets. I've seen aircraft with upward, both down- and up-ward, but never just downward facing winglets. https://calaero.edu/guide-airplane-winglets/ https://calaero.edu/guide-airplane-winglets/ This sort of engine arrangement seems likely to suffer with centre of gravity problems? The side scoops feed the rear engine so the top engine could be occluded by the fuselage?