True, never thought about that, but the swept wings say "A prototype swept back wing. Made of light weight composite materials. Guaranteed to generate lift, not guaranteed to ensure crew safety." Perhaps they mean a ton of drag relative to lift? Also the intakes do not contribute, I did a high pitch at low altitude test. I am going to test the one engined with only one intake to prove my point. Edit: Test seems to have the same results as the the airhogger Edit: Test two seems to have different results, pointing to the intakes causing the problem