Found this collection of Heraldry of the Wings and Groups of the former Stratecgic Air Command.

http://strategicaircommand.weebly.com/wingsgroups.html

Some rather overcrowded insignia with partiton lines rather difficult to blazon. The best ones are those inherited from USAAF Groups like 9th Stategic Reconnaissance Wing (not the first one shown but the later shown after a scrolling down), 43rd Bombardment Wing and 2nd Bombardment Wing and others.