Stall turnAerobatics turn-around maneuver / From Wikipedia, the free encyclopedia Dear Wikiwand AI, let's keep it short, summarize this topic like I'm... Ten years old or a College studentThe hammerhead turn, stall turn, or Fieseler is an aerobatics turn-around maneuver. Aerobatics turn-around maneuverSukhoi Su-29 performing a stall turn at the air show in Uppsala, Sweden, 2018. Aresti Catalog's notation of stall turn. The aircraft begins at the dot, and pulls into a vertical climb. The small angled line at the top indicates a stall turn (without indicating the orientation after the turn). The plane then descends, pulls into horizontal flight, and ends at the small vertical line.