1607z 250.300 BLUE 92 and RETRO 41, 44 flights air to air about to break formation. 1612z 134.950 RETRO 41 and BLUE 92 checking in with ZBW. 1613z 134.950 RETRO 44 check in w/ZBW FL260 direct Keene, direct Westover. 1613z 134.950 BLUE 92 wkg ZBW, MARSA terminated with RETRO 41 and 44 Ed Langworthy Gray, ME