The F-15EX, also known as the eagle 2, is a next generation fighter aircraft being made boeing for the US air force. The F-15EX is the latest version of the F-15 Mission Design Series and is an upgraded version of the fourth generation F-15 fighter jet.

The Lockheed SR-71 Blackbird is a $250 million dollar aircraft that is designed to fly deep into hostile territory, avoiding interception with its tremendous speed and high altitude. This aircraft can be operated safely at a maximum speed of Mach 3.3 at a altitude more than sixteen miles (25,908 m or 85,000 ft) above the earth.