Bell AH-1Z Viper

The Bell AH-1Z Viper is a twin-engine attack helicopter based on the AH-1W SuperCobra, that was developed for the United States Marine Corps as part of the H-1 upgrade program. The AH-1Z features a four-blade, bearingless, composite main rotor system, uprated transmission, and a new target sighting system. The AH-1Z, one of the latest members of the prolific Huey family, is also called "Zulu Cobra", in reference to its variant letter based on the military phonetic alphabet (Zulu for Z).

Users

 * Czech Republic
 * Czech Air Force
 * Pakistan
 * Pakistan Army Aviation
 * Poland
 * Polish Land Forces
 * United States
 * United States Marine Corps