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BellNAH-1ZViper

Attack Helicopters · United States · 2000
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BellNAH-1ZViper

* Absolute score — assessed within category · no era adjustment
Firepower
85
Anti-Armour Capability
88
Survivability
82
Sensors & Targeting
80
Agility
87
Range & Endurance
75
Night Capability
85
Reliability
78
Technology
85
Cost-Effectiveness
70
Origin United States
ManufacturerBell Textron
CategoryAttack Helicopters
EraPost-Cold War
In service2000
Operators6 countries
Quantity195
Data Quality86%
MASS(Military Archive Scoring System)
83
Attack Helicopters MASS Rating
3/11
Post-Cold War
6/45
All-Time
Attack Helicopters · 10 axes scored
Firepower
85
Anti-Armour Capability
88
Survivability
82
Sensors & Targeting
80
Agility
87
Range & Endurance
75
Night Capability
85
Reliability
78
Technology
85
Cost-Effectiveness
70
ⓘ Regardless of era, the same scoring system applies to all units in the attack helicopters category.
01 / Overview
Bell NAH-1Z Viper
Prime contractor
Production
2000–
Quantity
195
Operators
💰 PERFORMANCE / PRICE ASSESSMENT Methodology ↗
ATTACK HELICOPTERS · POST-COLD WAR
3
PERFORMANCE/PRICE
68
UNIT COST (2025 USD)
—
83
attack helicopters category
ⓘ Performance/Price and MASS score are computed across all units in the attack helicopters category, regardless of era.
02 / Specs & Design
◎General5MOD.5
  • First Flight2000
  • Service Entry Year2010
  • Crew2
  • Primary RoleAttack helicopter
  • In ServiceYes
◈Powerplant6MOD.6
  • Engine TypeTurboshaft
  • Number of Engines2
  • Engine Power (each)2,237 kW
  • Rotor ConfigurationFour-blade
  • Main Rotor Blades4
  • Anti-Torque TypeTail rotor
▣Performance2MOD.2
  • Top Speed270 km/h
  • Cruise Speed240 km/h
◇Dimensions & Weights4MOD.4
  • Fuselage Length14.5 m
  • Height4.5 m
  • Empty Weight5,300 kg
  • Max Takeoff Weight7,700 kg
◆Armament & Mission4MOD.4
▤Avionics2MOD.2
▲Service History2MOD.2
  • Production Start2000
  • Operational StatusIn service
03 / History
SERVICE LIFESPANStill in Service
  1. 2000Production started
26
years in service
195
units produced
4
countries operating
ⓘ The producing country still actively operates it. 2 countries retired it.
04 / Operators
Operator Inventory4country · 229units
229active
📖 TERMS ON THIS PAGE7terms
Anti-Tank Guided Missile: a missile designed to destroy tanks.
Chaff/Flare: Countermeasures deployed by attack helicopters to disrupt radar- or heat-seeking missiles by creating false targets or decoys.
Armored protective panels installed in the cockpit area of an attack helicopter to shield the crew from small arms fire and shrapnel.
Combined forward-looking infrared (FLIR) and electro-optical (EO) sensor turret for target acquisition and tracking, typically mounted on aircraft or ground vehicles.
A glass cockpit is an aircraft cockpit featuring electronic instrument displays, typically LCD or CRT screens, replacing traditional analog gauges.
Electronic receiver system that detects and identifies radar signals, alerting aircraft to potential threats for defensive countermeasures.
Aerodynamic containers mounted on aircraft, typically helicopters or fighter jets, that hold and launch unguided rockets in rapid succession.
These terms are listed automatically because they appear on this page.full encyclopedia →
📚 Sources
📖 ENCYCLOPEDIA Browse the Attack Helicopters entry →