Fort Worth AF AH-1/10Z

The Fort Worth AF AH-1/10Z (Allied Pact reporting name Viper) is a twin-engine attack helicopter based on the Fort Worth AF AH-1/86W, that was developed for the American People's Marine Corps (APMC). The AH-1/10Z features a four-blade, bearingless, composite main rotor system, uprated transmission, and a new target sighting system. The AH-1/10Z is part of the H-1 upgrade program.