新年伊始,多家防务承包商突然宣布放弃参与美国空军T-X计划的竞争。1月25日,雷神公司发表公开声明,考虑到合作伙伴不能将投标方案的成本削减三分之一,决定与莱昂纳多集团解除合作关系,不再参与投标T-X计划。时隔一周,诺格公司也在网站上宣布,决定不向美国空军提交T-X计划的投标方案,因为这不符合公司及其股东的最大利益。从2016年的群雄并起到2017年的两强退出,原本竞争激烈的T-X计划突然间 At the beginning of the new year, a number of defense contractors suddenly announced their decision to waive their participation in the USAF’s T-X program. On January 25, Raytheon issued a public statement that it no longer took part in the bidding of the T-X program because it decided not to cut the cost of bidding by one-third by its partners and decided to disassociate itself from the Leonardo Group. A week later, Northrop Grumman also announced on its website that it decided not to file a bid for the T-X program with the U.S. Air Force because it would not be in the best interests of the company and its shareholders. From 2016 to the top two in 2017 and the two strong exit, the original highly competitive T-X program suddenly