An original 1960s manufactured 11th Avi. Group patch with a cut edge on cotton twill.
The 11th served with the 1st Cavalry Division and the 1st Infantry Division throughout the US involvement during the Vietnam War (1965-1972). The 11th Aviation Group controlled the 227th Aviation Battalion (Assault Helicopter), 228th Aviation Battalion (Medium Helicopter) and 229th Aviation Battalion (Assault Helicopter). The group also included the 11th Aviation Company (General Support), 17th Aviation Company (Airmobile Light) and 478th Aviation Company (Heavy Helicopter).