Special Reports What is a Sikorsky UH-60 Black Hawk? A CRJ 700 jet collided with a Black Hawk helicopter outside Reagan Washington National Airport.

A CRJ 700 jet collided with a Black Hawk helicopter outside Reagan Washington National Airport.

A Black Hawk helicopter can transport up to "12 fully equipped, seated troops in combat," according to Lockheed Martin, the weapons company that builds the helicopter.

Sikorsky and DARPA recently conducted an autonomous flight of a UH-60 Black Hawk under on-board piloted supervision.

The Sikorsky UH-60 Black Hawk helicopter began service with the Army in 1978, according to www.sikorsky.com. The multi-mission helicopter has two engines and four blades and can sustain a cruising ...