page_title: Bell AH-1Z Viper
section_title: Specifications (AH-1Z)
hierarchical_section_title: Bell AH-1Z Viper / Specifications (AH-1Z)
caption_attribution_description: English: Front View of an AH-1Z
context_page_description: 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 Bell Huey family, is also called "Zulu Cobra", based on the military phonetic alphabet pronunciation of its variant letter.
context_section_description: Data from Bell Specifications, The International Directory of Military Aircraft, 2002–2003, Modern Battlefield Warplanes
  General characteristics
  Crew: 2: pilot, co-pilot/gunner (CPG)
  Length: 58 ft 3 in (17.75 m)
  Height: 14 ft 4 in (4.37 m)
  Empty weight: 12,300 lb (5,579 kg)
  Max takeoff weight: 18,500 lb (8,391 kg)
  Powerplant: 2 × General Electric T700-GE-401C turboshaft, 1,800 shp (1,300 kW)  each
  Main rotor diameter:  48 ft (15 m)
  Main rotor area: 1,808 sq ft (168.0 m²) 4-bladed main and tail rotors
  Performance
  Cruise speed: 160 kn (180 mph, 300 km/h)
  Never exceed speed: 222 kn (255 mph, 411 km/h)
  Range: 370 nmi (430 mi, 690 km)
  Combat range: 125 nmi (144 mi, 232 km) with 2,500 lb (1,100 kg) payload
  Service ceiling: 20,000 ft (6,100 m) +
  Rate of climb: 2,790 ft/min (14.2 m/s)
  Armament
  Guns: 
  1 × 20 mm (0.787 in) M197 three-barreled rotary cannon in the A/A49E-7 turret (750 round ammo capacity)
  Hardpoints: 
  Up to 6 pylon stations on stub wings with a capacity of 
  5,764 lb (2,615 kg) maximum,
  Rockets: 
  2.75 in (70 mm) Hydra 70 or APKWS II rockets – Mounted in LAU-68C/A (7 shot) or LAU-61D/A (19 shot) launchers (up to 76 unguided or 28 guided rockets total)
  Missiles: 
  AIM-9 Sidewinder air-to-air missiles – 1 mounted on each wing tip station (total of 2)
  AGM-114 Hellfire air-to-surface missiles – Up to 16 missiles mounted in four 4-round M299 missile launchers, two on each wing
caption: Front view of AH-1Z at the MCAS Miramar Air Show
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