The Lockheed Martin X-44 MANTA (Multi-Axis No-Tail Aircraft) was an American conceptual aircraft design by Lockheed Martin that has been studied by NASA and the U.S. Air Force. It was intended to test the feasibility of full yaw, pitch and roll …

1 天前 · The Boeing F-47 is an upcoming air superiority sixth-generation fighter aircraft to be developed by Boeing for the United States Air Force (USAF) under the Next Generation Air Dominance (NGAD) program. [1][2] It is intended to be the successor to the Lockheed Martin F-22. USAF officials said experimental tests have been flown since 2020, and the service aims to field it by decade's end, [3 ...

The Focke-Wulf Fw 44 Stieglitz (Goldfinch) is a twin-seat biplane designed and produced by the German aircraft manufacturer Focke-Wulf. It was the company's first major international success. [2]

2024年10月1日 · Looking like a sleeker F-22A Raptor, the X-44 was a delta-shaped plane with no tail. It was meant for extremely low-visibility flight and, had it been built and deployed, it likely would have...

2024年8月7日 · Summary and Key Points: The X-44 MANTA was an experimental aircraft developed by the U.S. Air Force based on the F-22 Raptor, designed without traditional tail surfaces to reduce radar visibility...

2022年3月31日 · As the world’s first operational stealth fighter, the first fighter to christen the new “5th-generation” of jets, and arguably the most potent air superiority aircraft ever to fly in service for any nation, it makes sense that the United States would have considered leaning into the F-22 program for other, more specialized roles.

1 天前 · The Pentagon will award its next-generation Air Force fighter jet contract to Boeing, a deal initially worth more than $20 billion, President Trump announced Friday alongside Defense Secretary Pete…

2021年5月6日 · As the world’s first operational stealth fighter, the first fighter to christen the new “5th-generation” of jets, and arguably the most potent air superiority aircraft ever to fly in service for...

Committee F44 meets twice a year, usually in April and October, with members attending three days of technical meetings. The Committee, with a membership of approximately 465, currently has jurisdiction over 30 standards. F44 standards will be published in the Annual Book of ASTM Standards, Volume 15.09.

F44不锈钢四大性能： 1、机械性能：强度、硬度、塑性、疲劳、冲击韧性. 2、化学性能：耐蚀性、高温氧化性. 3、物理性能：密度、熔点、热膨胀性、磁性、电导率. 4、工艺性能：切削性能、 可锻性 、可铸性、可焊性。 F44不锈钢交货状态： 1、棒材以锻轧状态、黑皮态、磨光态或车光态供应；2、圆饼和环坯以锻态供应；3、环件以固溶状态供应；4、板材经 固溶 、碱酸洗、矫直和切边后供应；带材经冷轧、固溶、 去氧化皮 交货；丝材以固溶酸洗盘状或直条状、固溶直条细 …