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AH-1Z Viper

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The Bell AH-1Z Viper: Most Advanced Attack Helicopter in the World

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Bell AH-1Z Viper full autorotations

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Marine Aviation: AH-1Z Viper – Forward Arming and Refueling Point

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U.S. Marines Show Scary Lethal Firepower of AH-1Z Viper Attack Helicopters | Exercise Cold Response

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Bell AH-1Z Viper

The Bell AH-1Z Viper is an American 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", based on the military phonetic alphabet pronunciation of its variant letter.