What is 'Bell 407' helicopter involved in Kedarnath crash and how reliable is it?

The Bell 407 is a four-blade, single-engine utility helicopter developed by Bell Helicopter. Known for its versatility, it's widely used in law enforcement, air ambulance services, tourism, and VIP transport. In India, it’s a go-to choice for high-altitude regions like Uttarakhand.

The Bell 407 can carry up to 6 passengers and a pilot. It cruises at speeds of around 220 km/h and has a range of over 600 km. Its Rolls-Royce engine and advanced rotor system allow it to perform reasonably well in thin air and hilly terrains — key for places like Kedarnath.

Operators choose Bell 407 for pilgrimage routes like the Kedarnath yatra due to its ability to land on compact helipads and fly comfortably in mountainous terrain. Its lightweight body and responsive control systems make it suitable for short, repeated flights.

Despite its reputation, the Bell 407 has limitations in extreme weather. Its single engine means there’s no backup in case of engine failure — a major concern in high-altitude zones where mechanical stress is higher. Also, sudden weather shifts can impact flight performance.

Globally, the Bell 407 has been involved in several crashes, often due to weather, technical failure, or human error. In India, crashes in Kedarnath and other hilly areas raise concerns over its reliability under intense operational stress.

Yes, under standard conditions. The Bell 407 meets civil aviation safety certifications, including those from the FAA. However, its safety heavily depends on pilot skill, maintenance rigour, and real-time weather checks — all of which are crucial in Uttarakhand.

After every helicopter incident in Uttarakhand, the DGCA reviews operator protocols. Post the Kedarnath crash, authorities are likely to re-examine pilot hours, machine fitness, and helipad conditions to prevent future incidents.