Bell 407

Bell 407
Pays	Usa
Rôle	Hélicoptère utilitaire polyvalent
Premier vol	29 juin 1995
Construit	1400+

Lla Cloche 407 est un hélicoptère d’utilité civile monomoteur à quatre pales; un dérivé du Bell 206L-4 LongRanger. Le 407 utilise le rotor à quatre pales de conception souple dans le plan avec moyeu composite développé pour l’armée des États-Unis’s OH-58D Kiowa Warrior au lieu du rotor à deux pales, semi-rigide et vacillant du 206L-4.

Source: Bell 407 sur Wikipedia

Bell 407 Walk Around
Photographer	Vladimir Yakubov
Localisation	HeliFest 2016, Hiller Aviation Museum, San Carlos
Photos	27

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General Characteristics and Role

The Bell 407 is a versatile, single-engine, turbine-powered light utility helicopter, representing a significant evolution of the Bell 206L-4 LongRanger. Developed by Bell Helicopter Textron, the 407 features a four-bladed main rotor utilizing a composite hub, offering improved performance, ride quality, and speed over the older two-bladed design. The cabin is wider and boasts large windows, making it popular for scenic tours and corporate transport. Its robust performance and reliability have made it a global success, serving a wide variety of roles, including corporate transport, emergency medical services (EMS), law enforcement, electronic news gathering (ENG), and military light observation. It remains a cornerstone of the light helicopter market.

Property	Typical Value (Bell 407)
Rôle	Light Utility Helicopter
National Origin	United States / Canada
Fabricant	Bell Helicopter Textron (now Bell)
First Flight	21 June 1995
Crew	1 (Pilot)
Capacité	Up to 6 passengers
Rotor System	4-bladed main rotor, 2-bladed tail rotor
Rotor Diameter	10.67 m (35 ft 0 in)
Length (Overall)	12.70 m (41 ft 8 in)
Max Takeoff Weight	2,722 kg (6,000 lb) (Internal load)

Powerplant and Performance

Engine: 1 x Rolls-Royce 250-C47B turboshaft engine.
Power Output: 630 kW (850 shp) (derated for maintenance and reliability).
Cruise Speed: 246 km/h (153 mph; 133 kn).
Maximum Range: 611 km (380 mi; 330 nmi).
Key Feature: The four-bladed composite rotor provides smoother, faster flight and reduced noise signature compared to its predecessor.

Design and Variants

Fuselage: Features a wide, composite fuselage with large, curved windows, improving visibility and internal space.
Variants: Key variants include the Bell 407GX (with an updated Garmin G1000H glass cockpit) and the military variant, the Bell ARH-70 Arapaho (cancelled).
Military Use: The 407 platform is the basis for the Bell 407M (Multi-Mission) and the specialized Bell 407MRH (Multi-Role Helicopter), often used for training and light armed reconnaissance by international forces.