过去50年来,美国空军的主要开发战略几乎完全是以飞机为重点,现在美国国防部、NASA等机构制订了一项名为“航天技术联盟”计划,空军也通过了一个“全球参与”的展望报告,表明美国正在把研究重点向航天领域转移.根据新的计划,到2005年,美国空军用于航天技术研究的经费将增加一倍,新增加的款项将从飞机研究领域中扣除.飞机技术研究的经费占空军研究预算中的比例将从目前的61%减至41%,在裁减的一些航空领域项目中,有一些涡轮发动机开发项目和一些在航空电子、载人系统 For the past 50 years, the main development strategy of the USAF has focused almost exclusively on aircraft. Now that the U.S. Defense Department, NASA and other agencies have formulated a plan called “Aerospace Technology Alliance,” the Air Force has also adopted a “global engagement” outlook Report shows that the United States is shifting its research focus to the field of aerospace and that according to the new plan, the U.S. Air Force will double the funding for aerospace technology research by 2005 and that the newly added funds will be deducted from the field of aircraft research. The research funding will account for a disproportionate share of the Air Force research budget from the current 61% to 41%. Among the aviation projects that have been reduced, some turbine engine development projects and some projects in avionics, manned systems