Bell 525 Relentless Test Flights Now Running On Sustainable Fuels

Photo: Bell
Gemini Sparkle

Key Takeaways:

  • Bell Textron successfully conducted the first flight of its developmental Bell 525 Relentless helicopter using Sustainable Aviation Fuel (SAF).
  • This milestone contributes to Textron's "Achieve 2025" initiative, aiming for a 20% reduction in greenhouse gas emissions, with Bell being the first rotorcraft customer to use Avfuel-supplied SAF.
  • The Bell 525, designed for fuel efficiency, will continue to utilize SAF for test flights when feasible, further reducing lifecycle carbon emissions.
See a mistake? Contact us.

Bell Textron first incorporated sustainable aviation fuel (SAF) with its training and demonstration fleet in March, and today announced it made the first SAF-powered flight of its developmental Bell 525 Relentless helicopter over the past summer.

Michael Thacker, executive vice-president of Innovation and Commercial Business, said, “This is a major milestone in our sustainability journey, and we look forward to implementing more carbon-emission-reduction practices in the future.” Textron’s Achieve 2025 initiative aims to reduce the company’s greenhouse gas emissions by 20 percent, overall, by 2025.

Aviation fuel supplier Avfuel provides SAF for Bell, which is the first “rotorcraft customer” to complete flights with SAF, according to Bell, which said, “Once blended, Avfuel anticipates a 22-metric-ton reduction in lifecycle carbon emissions per truckload.”

The Bell 525 Relentless is designed for long-range missions, including servicing oil and gas rigs, and offers “a significant reduction in fuel consumption compared to other large twin-engine aircraft commonly used for offshore operations,” said Bell. The company further said it will continue using SAF for its Bell 525 test flights “when SAF availability and flight test schedules allow.” The program is currently undergoing FAA Type Inspection Authorization (TIA) flight testing.

Mark Phelps

Mark Phelps is a senior editor at AVweb. He is an instrument rated private pilot and former owner of a Grumman American AA1B and a V-tail Bonanza.
Sign-up for newsletters & special offers!

Get the latest stories & special offers delivered directly to your inbox

SUBSCRIBE