Rotorcraft · ICAO B525

Bell 525 Relentless

The Bell 525 Relentless is a large light-intermediate twin helicopter with fly-by-wire controls and a digital cockpit, features unusual in civil rotorcraft when it was announced. Its wide cabin is intended for offshore, search-and-rescue, and executive transport missions. The programme suffered a fatal prototype accident in 2016 and underwent a long certification campaign before entering service. Its modern systems and still-small fleet make the 525 a rare new-generation Bell helicopter.

Bell 525 Relentless, example photo from Wikimedia Commons
Photo: Zane Adams · CC BY-SA 2.0 · Wikimedia Commons

Did you know?

A fly-by-wire, glass-cockpit light-intermediate twin, unusually advanced avionics for a civil helicopter of its generation.

Specifications

Length15.5 m (51 ft)
Height4 m (13 ft)
Rotor diameter14 m (46 ft)
Maximum passengers16
Crew2
Maximum take-off weight9.3 t
Range500 NM (926 km)
Maximum speed160 kt (296 km/h)
Service ceiling20,000 ft (6,096 m)
Optimum ceiling12,000 ft (3,658 m)
Fuel capacity2,400 l
Engines2x General Electric CT7-2F1

Curated by CatchFlights from manufacturer documents, ICAO Doc 8643 and reference works; values are left out where no source could confirm them. Sources are listed on our credits page.

In CatchFlights

In CatchFlights the Bell 525 Relentless starts as a Rare catch. The tier is an editorial judgement of how special a sighting of this type is. The more often you catch it, the closer it moves to Common for you.

A catch counts for the manufacturer Bell, the 525 Relentless family and the model in your collection, and the daily Type Rating quiz asks about the types of each family.

Catch it yourself.CatchFlights shows the aircraft flying near you on a radar, so a type like this one is only a catch away when it passes overhead. Explore CatchFlights.

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