This is the light-green subdued/level-flight version of the Flight Suit Sleeve (Pencil Pocket) patch for the 479STUS (the USAF Navigator Training Squadron) jointly located with the US Navy at NAS Pensacola, FL. The “backseaters” for the USAF are trained here, then select platforms and go to their respective bases for aircraft-specific training. When the students “select” their operational platform, they are given one of these to wear on the left sleeve of their flight suit. This patch comes with velcro attached.