NOAA ‘Hurricane Hunters’ to be launch customer for Rolls-Royce T56 Series 3.5 engine enhancement by admin • 12 November, 2013 The WP-3D ‘Hurricane Hunter’ aircraft of the National Oceanic and Atmospheric Administration (NOAA) will be the first customer to fly with the fuel-saving T56 Series 3.5 engine enhancement package developed by Rolls-Royce. Print PDF