Constituted 511th Bombardment Squadron (Heavy) on 25 Sep 1942. Activated on 1 Oct 1942. Inactivated on 28 Aug 1945. Redesignated 511th Bombardment Squadron (Very Heavy) on 23 Sep 1947. Activated in the reserve on 15 Oct 1947. Inactivated on 27 Jun 1949.

Assignments. 351st Bombardment Group, 1 Oct 1942-28 Aug 1945. 351st Bombardment Group, 15 Oct 1947-27 Jun 1949.

Stations. Salt Lake City AAB, Utah, 1 Oct 1942; Gowen Field, Idaho, 1 Oct 1942; Geiger Field, Wash, Nov 1942; Biggs Field, Tex, 2 Jan 1943; Pueblo AAB, Colo, 2 Mar-12 Apr 1943; Polebrook, England, 12 May 1943-9 Jun 1945; Sioux Falls AAFld, SD, Jul-28 Aug 1945. Fairfax Field, Kan, 15 Oct 1947-27 Jun 1949.

Aircraft. B-17, 1942-1945.

Operations. Combat in ETO, 14 May 1942-20 Apr 1945.

Service Streamers. None.

Campaigns. Air Offensive, Europe; Normandy; Northern France; Rhineland, Ardennes-Alsace; Central Europe; Air Combat, EAME Theater.

Decorations. Distinguished Unit Citations: Germany, 9 Oct 1943; Germany, 11 Jan 1944.

Emblem. None????