Shield
Per chevron embattled Gules and Or in base between two wings displayed and counterchanged a horse's head caboshed Sable, in chief a lion passant guardant of the second armed and langued Vert.
Crest
That for the regiments and separate battalions of the Illinois Army National Guard: On a wreath of the colors Or and Gules, upon a grassy field the blockhouse of Old Fort Dearborn Proper.
Motto
INTO COMBAT WE FLY.
Shield
Highlights of the Battalion's service in World War II as the 106th Cavalry mechanized are symbolized in this design. The gold lion on red is from the arms of Normandy and recognizes the unit's participation in that campaign. The green tongue and claws of the lion and red of the background are the colors of the French Croix de Guerre which the unit was awarded three times during the fighting in France. Five battlements on the chevron denote the Battalion's score of campaign credits in France and Germany. The horse's head alludes to the 33d Aviation Battalion's descent from the Chicago Black Horse Troop of the Illinois National Guard. The wings refer to the unit's present aviation function and the change of colors allude to the reorganization which resulted in the unit's switch to aviation.
Crest
The crest is that of the Illinois Army National Guard.
The coat of arms was approved on 1 July 1966. It was rescinded on 23 December 1974.