comments: Malev.b737.ha-lob.2.arp.jpg The Boeing 737 Next Generation is the name given to the -600/-700/-800/-900 series of the Boeing 737 after the introduction of the -300/-400/-500 Classic series. They are American short to medium range, single aisle, narrow body jet airliners . Produced since 1996, over 2,800 737NG aircraft have been delivered