FEHoppy
In general, I agree. End plates, strakes, VG, Fencing, etc. Shepherding Airflow (Winglet) creates benefits in lessening drag, increasing manouverability, and reducing Stall speed or increasing control effect. "Ducting" airflow can get extremely complex. Intake efficiency, washout, "Flex-Wing"; it remains a bad idea to add anything to an A/C that won't, (can't) perform. There are limits, mine begin with the appearance of the first equation. I admit I am mathaverse. If I understand something, I don't need to teach it or prove it. "Coanda Effect", Blown Wing, Vectored thrust?
OK, pull chox.
Brian Abraham- By Ballistic, I mean Energy Assisted (Created) "Flight"
Watching an F-18 Waddle down the Runway, CLEAN, at 40 knots and AoA in the neighborhood of 70 degrees, at an Altitude of 50 feet with both pipes roaring and burning two parallel ruts into the runway isn't strictly speaking Aerodynamic Flight. Neither is an F-15 at Mach 1 and vertical, its wings producing Zero Lift (Unloaded). On the Eagle in that config., those wings aren't wings at all, more like Fins, (As in Rocket Fins). Ballistic. If I'm wrong, ok, I'm listening.
Airfoil