Re: Thunderchicken video
The F-117 and B-2 have BIDs(Blow In Doors) one on each intake for ground operations as the Ice Cube makers (F-117 Intake grids) cannot allow sufficient airflow at idle. This thing appears to have none. Now while I cannot see BIDs, the small intake doesn't really alarm me, just look at an F-5 or t-38 intake. I can barely fit inside one of these, and the mock-up intake looks only slightly smaller. Maybe because this is a single engine AC, and there are two intakes it may get enough air. I agree that undesturbed air may be of some concern.
If this thing is a scaled down version, then the belly shows facets that might be converted into lower intakes as well. IDK.
It just looks too unlikley to fly as a full bird.