“Grunherz” title of JG54 has born

Maj. Hannes Trautloft was born in Thuringia, which always was called “Germany Green Heart”, so during the combat duty in Spain Trautloft has painted bug green heart on his Bf-109.
When 25 of August 1940 Maj. Hannes Trautloft became a commander of JG54, “Green Heart” or “Grunherz” became an official title of the group.

Later, in 1944 JG54 was the most resultative group of the western front.

See else: Robert Weiss, III/JG54 commander death