Over 1,600 "Twin Beech" aircraft were given BuNos and operated by the Navy, Marines and Coast Guard. Originally, 8 production versions were built. From the 8 versions, 21different sub-versions were created which showed the versatility of this aircraft. It was used operationally as a trainer, transport, photo ship, hack and drone director. At some point, it was operated by every NAS, NAAS, NAF, MCAS, and MAF, as well as many squadrons and ships. Its history lies in the photos of these assignments to places rarely heard of.