How an insect wing beats an aeroplane wing

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ASK: one plate - why an insect wing beats an aircraft wing at its own game. FACT (locked): insect wings make roughly 2 to 3 times the lift fixed-wing theory predicts, because a spiral of air, a leading-edge vortex, sits on the wing and pulls up. A rigid aircraft wing cannot hold that vortex. Source: Ellington, J Exp Biol, 1999. ALSO AVAILABLE (locked if you use it): a hovering fruit fly beats its wings 209 times a second. BEAT: the trick a plane is not allowed to use. BAR: a physics teacher pins it up. DIRECTION (we lock the world AND the device; iterate inside it): wartime aircraft-recognition and wind-tunnel print, flat inks, hard silhouettes. PALETTE: 3 inks, aviation blue, chalk white, one alarm red for the vortex alone, named hexes. FRAME: two panels, left to right. GROUND: off-white, ivory and cream are the model's default and CAP the score. Commit to a ground that is not off-white. SPACE: at least 40 percent stays quiet ground; compose the emptiness. Filled corner to corner CAPS, however good the drawing. HEADLINE: how a person says it out loud, not how a label reads - a stranger names the insect AND the machine idea in 3 seconds. If it sounds like a caption or product feature, redo it. VOICE: write every word in the register above. CARE: the aircraft wing may show the vortex breaking away - that is the point; it cannot keep it. Myth-bust the bumblebees-cannot-fly error, never repeat it. TEXT: 1 headline, up to 4 labels, a source. STANDARD (detail in INSECTS-MAKER-GUIDE.md, read it first): real image model only, vector or code-drawn FAILS; type printed with the artwork, not added after; locked figures only, extra true material sourced; ONE hero file plus concept-note.md and sources.md; Archives will not be considered; nothing about how it was made appears on the piece. JUDGED: wow, subject, surprise, craft. NOT THIS: a diagram with no point of view; arrows over a photo.