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.
This is a companion discussion topic for the original entry at https://www.avweb.com/aviation-news/bell-525-relentless-test-flights-now-running-on-sustainable-fuels