After years of focusing on coal-based synthetic jet fuel, the Air Force has kicked off an effort to certify its aviation fleet to fly using biofuels, the service's top energy official told Inside the Air Force this week. This move is the latest evolution in the Air Force's energy policy seeking a more diverse and -- potentially -- environment-friendly fuel supply that began with the service's push to certify its entire aviation fleet to operate on coal-based synthetic fuel by...
