Cirrus Aircraft officials had been hoping to deliver the first SF50 Vision jet by the end of last year, but the company said in January that schedule has stretched to sometime in the first half of this year. Mooney International Corp.s M10T proof-of-concept model completed its first flight, in December, from Chino Airport in California. The M10T, unveiled in 2014 at the Zhuhai Airshow in China, is aimed at Chinas flight training market, and will be manufactured there. The FAA launched its drone registry in late December, and within the first three weeks, about 180,000 drone users had registered. In the NTSBs annual list of most-wanted safety improvements for aviation, loss-of-control accidents repeated from last years choice for general aviation. Anticipating that Congress will consider changing how the FAA is funded in this years spring session, 15 general-aviation advocacy groups signed a letter in December asking the U.S. House to hear their real and long-standing concerns about the expected proposals.