That is a Kriegsmarine gyroglider. It was towed into the air by a surfaced submarine in order to look for enemy shipping. The winch cable was cut if the submarine came under attack. Undoubtedly the poor pilot didn't have many options to survive at that point.
Bloody hell,at least give us a chance. Any more zoomed in shots? Twin tails and new will be the new Lightning probably Sent from my Pixel 6 Pro using Tapatalk