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Bell AH-1 SuperCobra


Attack Helicopter


The Bell AH-1 SuperCobra attack helicopter represents an evolved, twin-engine variant of the original Vietnam War-era AH-1 Cobra attack helicopter line.
Authored By: Staff Writer | Edited: 7/30/2019
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Specifications


Year: 1971
Status: Active, In-Service
Manufacturer(s): Bell Helicopter Textron - USA
Production: 1,271
Capabilities: Ground Attack; Close-Air Support (CAS); Navy/Maritime;
Crew: 2
Length: 45.51 ft (13.87 m)
Width: 47.90 ft (14.6 m)
Height: 14.57 ft (4.44 m)
Weight (Empty): 10,919 lb (4,953 kg)
Weight (MTOW): 14,749 lb (6,690 kg)
Power: 2 x General Electric T700-GE-401 turboshaft engines developing 1,723 shaft horsepower while driving two-blade main and two-blade tail rotors.
Speed: 173 mph (278 kph; 150 kts)
Ceiling: 13,999 feet (4,267 m; 2.65 miles)
Range: 365 miles (587 km; 317 nm)
Rate-of-Climb: 800 ft/min (244 m/min)
Operators: South Korea; Taiwan; Turkey; United States
The AH-1 "SuperCobra" is a further evolution of the original Vietnam War-era AH-1 "Cobra" born in the 1960s. The SuperCobra is differentiated primarily by its twin-engine configuration compared to the single-engine nature of the Cobra system. The SuperCobra achieved its first flight in 1969 and entered service (as the AH-1J) in 1971. This was followed by the modernized AH-1W in 1986. To date, some 1,270 examples have been produced and the type stocks the inventories of the United States (Marines), the Iranian Army, South Korea, Taiwan and Turkey. The AH-1W is being superseded by the newer AH-1Z "Viper" standard.

Outwardly, the SuperCobra family retains much of the external appearance of the original Cobra design including its two-person, stepped cockpit creating a slim profile when viewed from the front. The powered, chin-mounted turret has also been carried over as had the Cobra's fixed, skid landing equipment. The pilot is seated in the rear, elevated cockpit with the weapon's officer in the front cockpit (flight and weapons controls are doubled). The engine pairing drives a two-bladed main rotor and two-bladed tail rotor (the latter affixed to the starboard side of the vertical tail fin. Like the Cobra, the SuperCobra can undertake a variety of battlefield roles that go beyond its base anti-armor capabilities. It can be used in close support of friendly forces, support special forces operations and provide security for convoys. Armed reconnaissance allows the aircraft to both track and engage unsuspecting foes at range through cannon fire, rockets and missiles.

The SuperCobra is outfitted with a 20mm M197 3-barreled Gatling cannon fitted to a powered M97 turret assembly under the nose as standard. This system is afforded 750 rounds of 20mm projectiles. The SuperCobra is also cleared to fire 2.75" (70mm) Mk 40 or Hydra 70 series rockets from multiple-shot pods. It can replace these with the larger 5" (127mm) "Zuni" series rockets fired from four-shot LAU-10D/A series launcher systems. Anti-armor sorties are managed by TOW missile launchers (four-shot launchers) and AGM-114 "Hellfire" anti-tank missiles (M272 launchers). MIssiles are limited to the outboard underwing hardpoint. To counter low-flying aerial threats, the platform can also field the AIM-9 Sidewinder short-range missile at each wingtip. External fuel tanks can also be fitted to help improved operational ranges.

The SuperCobra holds origins in the related twin-engine variants beginning with the AH-1J "SeaCobra" and its export derivative, the AH-1J "International". Then came the AH-1T "Improved SeaCobra" with lengthened tail boom and modernized powerplant/transmission systems. The AH-1W SuperCobra (nicknamed "Whiskey") features day/night fighting capabilities as well as more advanced weapons delivery systems. The AH-1(4B)W "Viper" ("Four-Bladed Whiskey") is an updated version with a four-bladed composite main rotor assembly. The AH-1Z "Viper" ("Zulu Cobra") is a SuperCobra overhaul with four-bladed main rotor blade and the advanced Night Targeting System (NTS) installed.






The AH-1J SeaCobra was fitted with a single Pratt & Whitney Canada T400-CP-400 series turboshaft engine (PT6T-3 "Twin Pac") of 1,800 shaft horsepower driving a two-blade main rotor and two-blade tail rotor. This provided the mount a top speed of 220 miles per hour, a cruising speed of 175 miles per hour, a range of 360miles and a service ceiling of 10,500 feet. Rate-of-climb was listed at 1,090 feet per minute.

The newer AH-1W SuperCobra sported 2 x General Electric T700-401 turboshaft engines for an output of 1,690 shaft horsepower each. This arrangement also drove a two-bladed main rotor and two-bladed tail rotor. Straight line performance remained the same though range was increased to 365 miles, the service ceiling raised to 12,200 feet and rate-of-climb increased to 1,620 feet per minute.

The Model 309 "King Cobra" was a development based on previous AH-1 offerings intended for all-weather operation. Two prototypes were eventually produced, each with differing engines. The "CobraVenom" was a SuperCobra offering proposed to the British Army. Similarly, Romania was showcased the AH-1RO development and the AH-1Z "King Cobra" was destined for Turkey (existing AH-1 users) to fulfill its ATAK attack helicopter program requirement.

Iran procured a stock of AH-1 SuperCobras while the United States and Iran held a political relationship leading up to the fall of the Shah in 1979. These were then upgraded under the Panha 2091 designation and eventually evolved into the modern Iranian Army IAIO "Toufan" series which more or less appears as a SuperCobra though internally outfitted with Iranian avionics and weaponry.

The primary American operator of the AH-1 SuperCobra is the United States Marine Corps. The aircraft has been used by groups HMLA-167, HMLA-169, HMLA-269, HMLA-367, HMLA-369, HMLA-467, HMLA-469, HMLA-773 and HMLAT-303.








Armament



STANDARD:
1 x 20mm 3-barreled Gatling gun in powered chin turret.

OPTIONAL:

8 x Hughes TOW anti-tank missiles (quad launcher on outboard wing station).
8 x AGM-114 Hellfire anti-armor missiles (quad launcher on outboard wing station).
2 x AIM-9L short-range air-to-air missiles
2 x AGM-122A Sidearm air-to-surface anti-radiation missiles.
2 x 2.75in 7-Shot Munition Dispensing/HE Rocket Pods
2 x 2.75in 19-Shot Munition Dispensing/HE Rocket Pods
2 x 7.62mm Machine Gun pods

Also support for Fuel Air Explosive and Conventional Drop Bombs as required as well as external fuel tanks for improved range.

Graphical image of an aircraft Gatling-style rotating gun
Graphical image of an aircraft machine gun pod
Graphical image of an air-to-air missile weapon
Graphical image of a short-range air-to-air missile
Graphical image of an aircraft air-to-surface missile
Graphical image of an aircraft anti-tank guided missile
Graphical image of an aircraft anti-radar/anti-radiation missile
Graphical image of an aircraft rocket pod
Graphical image of an aircraft conventional drop bomb munition
Graphical image of an aircraft external fuel tank

Variants / Models



• AH-1J "SeaCobra" - Base Twin Engine Model
• AH-1J "International" - SeaCobra Export Variant
• AH-1T "Improved SeaCobra" - Improved SeaCobra; lengthened fuselage and tail; upgraded gearbox; upgraded powerplants.
• AH-1W "SuperCobra" / "Whiskey Cobra" - Improved engines and weapons suite; day/night operation capability.
• AH-1Z "Viper" / "Zulu Cobra" - 4-Bladed Main Rotor; implementation of Night Targeting System (NTS).
• AH-1RO "Dracula" - Proposed Romanian Model
• AH-1RO "Dracula" - Proposed Romanian Export Model
• AH-1Z "King Cobra" - Proposed AH-1Z Export Model for Turkey; never produced.
• Model 309 "King Cobra" - Developmental Twin-Engine Cobra fitting 2 x Pratt & Whitney Canada T400-CP-400 turboshaft engines.
• "CobraVenom" - Proposed British Model
• Panha 2091 "Toufan" - Upgraded Iranian Cobras based on the AH-1J "International" model; indigenous Iranian canopy; revised instrument panels; FLIR installation.
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