VMFA-312 Checkerboards JOPA Patch Aviators! Enjoy this VMFA-312 Checkerboards JOPA Patch! It is a great patch to display and or wear. 3.0 inches Embroidered With Hook and Loop US Naval Aviator Owned Business Marine Fighter Attack Squadron 312 (VMFA-312) is a United States Marine Corps F/A-18C Hornet squadron. Also known as the “Checkerboards”, the squadron is based at Marine Corps Air Station Beaufort, South Carolina and falls under the command of Marine Aircraft Group 31 (MAG-31) and the 2nd Marine Aircraft Wing (2nd MAW). The Radio Callsign is Check