[cody1947]

I asked a contact who was a ground crew chief for the 379th. He said that all B-17s of every Group within the 1st Bombardment Division had a large triangle painted at the top of the vertical stabilizer. Each Group was assigned a code letter and it was painted in the triangle. The 379th's planes were assigned the letter K, and became known as the Triangle K Group. He said that the colors for each group came later to make it easier to identify who was in your formation. I guess this also helped stop intruders or help ID them since they would not know which units were flying with each other for that mission. He said as far as he remembers the triangle "K" was there from the units activation to it's disbanding in Africa in 1945. As far as the color being changed after it was initiated he can't remember it being changed.