Aircrafttotal Encyclopedia


Bell 412EP of the NSW Police Sydney
Role	Multipurpose utility helicopter
National origin	United States/Canada
Manufacturer	Bell Helicopter
First flight	August 1979; 44 years ago
Introduction	1981; 43 years ago
Primary users	Japan Ground Self Defence Force See Operators for others
Produced	1979–present
Number built	1,300+
Developed from	Bell 212
Variants	Bell CH-146 Griffon

The Bell 412 is a utility helicopter of the Huey family manufactured by Bell Helicopter. It is a development of the Bell 212, with the major difference being the composite four-blade main rotor. It is twin-turbine helicopter that has been popular on the civilian and military markets, and major users include Canada, Italy, and Japan. Several hundred have been produced since its introduction in 1979, and several iterations of upgrades and variations have been produced such as with upgraded cockpit electronics. It has been manufactured under license in Italy as the August-Bell AB412, Indonesia, and in Japan by Subaru. The Canadian Bell 412 were produced there because that is location of the Bell Textron factory.

The AgustaWestland AW139, now known as the Leonardo AW139, is a 15-seat medium-sized twin-engined helicopter developed and produced by the Anglo-Italian helicopter manufacturer AgustaWestland, now part of Leonardo. It is marketed at several different roles, including VIP/corporate transport, military use, offshore transport, firefighting, law enforcement, search and rescue, emergency medical service, disaster relief, and maritime patrol

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Design and development

Development began in the late 1970s with two Bell 212s being converted into 412 prototypes. An advanced four-blade main rotor with a smaller diameter replaced the 212's two-blade rotor. A Bell 412 prototype first flew in August 1979. The initial model was certified in January 1981 with deliveries commencing in the same month. The 412 model was followed by the 412SP (Special Performance) version, which featured a larger fuel capacity, a higher takeoff weight, and optional seating arrangements. In 1991, the 412HP (High Performance) variant with improved transmission replaced the SP version in production.

In the early 2000s Bell offered the Bell 412EP as its Bell 412 LUH entrant in the U.S. Army Light Utility Helicopter program, where it competed against several other light helicopters for an order

Aeromacchi Leonardo

AgustaWestland (now Leonardo)
August-Bell AB412SP "Tweety"

General Info

Crew: one-two pilots
Capacity: up to 13 passengers, maximum external load of almost 6,614 lb (3,000 kg)
Length: 56 ft 1 in (17.09 m) including rotors
Fuselage length: 43 ft (13 m)
Height: 15 ft 0 in (4.57 m)

Powerplant

Empty weight: (3,079 kg) Max takeoff weight: (5,398 kg) Powerplant: 1 × Pratt & Whitney Canada PT6T-3D Twin-Pac or PT6T-3DF Twin-Pac coupled turboshaft engine -

Performance

Maximum speed: (, 260 km/h)
Cruise speed: ( 226 km/h)
Range: (609 mi, 980 km)
Service ceiling: (6,100 m)

Related development

- Airbus Helicopters H160
- Airbus Helicopters H175
- Kamov Ka-60
- TAI T625
- Bell 525 (In Development) Relentless

Special Links Aeromacchi Leonardo

Links to Youtube & Others

The Bell 412 is a utility helicopter of the Huey family manufactured by Bell Helicopter. It is a development of the Bell 212, with the major difference being the composite four-blade main rotor. It is twin-turbine helicopter that has been popular on the civilian and military markets.

August-Bell
AB412SP utility

The current production version, 412EP (Enhanced Performance), is equipped with a dual digital automatic flight control system.

Youtube Link

The current production version, 412EP (Enhanced Performance), is equipped with a dual digital automatic flight control system.

Leonardo / AgustaWestland
August-Bell AB412SP "Tweety"

AgustaWestland
Agusta-Bell AW412SP

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History AgustaWestland (now Leonardo)
AgustaWestland August-Bell AB412SP utility