There is no reason to get excited; it is just a larger version of the old SH-5: a seaplane that has a production run of only 4 copies. I found it odd that AVIC calls the Dragon 600 project a "commercial production." Oh my!! Is that a large Magnetic Anomaly Detection (MAD) Sensor in your tail or are you just happy to see me?!JL (Dragon) 600SH-5China to build world's largest amphibious aircraft(