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On a disc Azure, in sinister base a globe Or gridlined Sable surmounted at dexter chief by a flight symbol ascending bendwise Silver Gray and entoured by a wreath of olive branches Vert all below in middle chief a polestar White, all within a double border Yellow and Blue.

Attached below the disc, a Gray scroll edged with a narrow Blue border and inscribed "91ST MAINTENANCE SQ" in Blue letters.


Ultramarine blue and Air Force yellow are the Air Force colors. Blue alludes to the sky, the primary theater of Air Force operations. Yellow refers to the sun and the excellence required of Air Force personnel. The polestar above the globe on a solid blue background suggests space, the primary operating area of the Air Space Command to which the unit is attached. The globe also denotes the worldwide range of the Command's weapons. The flight symbol symbolizes the missiles maintained by the Squadron. The olive branch signifies a stable peace, made possible by a ready force through deterrence.

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