2015 PROMISES TO BE AN EXCITING YEAR IN HELICOPTER DEVELOPMENT, AS OEMS PUSH THE ENVELOPE ON ADVANCED TECHNOLOGIES TO DELIVER MORE SPEED, HIGHER FLIGHT CEILINGS, AND IMPROVED FUEL EFFICIENCY. HERE ARE SOME OF THE MOST EXCITING TRENDS TO WATCH FOR OVER THE NEXT 12 MONTHS, SOME OF WHICH WILL BE SEEN AT HELI-EXPO 2015.