普惠公司Ｆ135发动机计划副总裁最近表示 ,希望在 2 0 0 3年推出Ｆ135发动机的研究验证型。目前4 0 0 0 0磅推力级的Ｆ135发动机正在该公司佛罗里达的试车台上进行海平面试验。预计在今年 5月初完成。主要目的是评价发动机热端部件新近采用的隔热涂层。同时还要评定不同燃油对 Pratt & Whitney’s F135 engine program vice president recently said he hoped to launch in 2003 the F135 engine research and verification type. The F4000, currently with a thrust of 40,000 pounds, is being tested for sea level on a test bed in the company’s Florida facility. It is expected to be completed in early May this year. The main purpose is to evaluate the newly applied thermal barrier coating on engine hot end components. At the same time also assess the different pairs of fuel