High Quality Content by WIKIPEDIA articles! The YF-22 and YF-23 were competing in the USAF's Advanced Tactical Fighter (ATF) program, conceived in the early 1980s, to provide a replacement for the F-15 Eagle. Contracts for the two most promising designs were awarded in 1986. The YF-23 was designed to meet USAF requirements for survivability, supersonic cruise (supercruise), stealth, and ease of maintenance. Designed with all-aspect stealth as a high priority, Northrop drew on the company's...
High Quality Content by WIKIPEDIA articles! The YF-22 and YF-23 were competing in the USAF's Advanced Tactical Fighter (ATF) program, conceived in the early 1980s, to provide a replacement for the F-15 Eagle. Contracts for the two most promising designs were awarded in 1986. The YF-23 was designed to meet USAF requirements for survivability, supersonic cruise (supercruise), stealth, and ease of maintenance. Designed with all-aspect stealth as a high priority, Northrop drew on the company's experience with the B-2 Spirit and F/A-18 Hornet. The YF-23 was an unconventional-looking aircraft with trapezoidal wings, substantial area-ruling, and a V-tail. Similar to the B-2, the exhaust from the YF-23's engines flows through troughs lined with heat ablating tiles, which shields the exhaust from infrared (IR) missile detection from below.
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Операционная система Linux продолжает завоевывать популярность, и все больше сетевых служб разворачивается на ее основе из соображений стоимости и гибкости. Книга даст исчерпывающее представление о том, как устроена работа с сетью в Linux. В начале описаны основные дистрибутивы и рассказано, как выбрать правильный и настроить простейшую сетевую конфигурацию. Затем идет речь о диагностике, брандмауэре и...
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