Flying Upside Down: How Chuck Aaron Created Helicopter Aerobatics (Lecture)

Round-15 hunt: picked; source: military museum playlist (long lectures); channel already live on Lumen; strict per-title check + final strict pass; title rules; oEmbed verified.

A 58-minute video from Smithsonian National Air and Space Museum: “Flying Upside Down: How Chuck Aaron Created Helicopter Aerobatics (Lecture)”.

Video by Smithsonian National Air and Space Museum, played through YouTube's embedded player.