The RQ-4 Global Hawk is a high-altitude, long-endurance unmanned aircraft system with an integrated sensor suite that provides intelligence, surveillance and reconnaissance, or ISR, capability ...

The best of these was the A-1 Skyraider, a star in the Korean and Vietnam Wars, and the last U.S. military propeller-driven aircraft of ... speed of 245 mph and an altitude of 10,000 feet.

The U-2 planes join other surveillance aircraft on missions around the US-Mexico border. The US military has its high-altitude U-2 "Dragon Lady" spy planes and other reconnaissance aircraft flying ...

Sikorsky shared its concept vision for a future X2 aircraft ... even if flying at high speed. Survivability is thus directly linked to altitude and speed. To give some numbers, at higher altitudes ...

The competing bids were winnowed down to four, including Lockheed, Grumman Aircraft ... is lifted by a high-altitude balloon on each end and sports two of those turbulent-flow propellers, powered ...