A "go-around" maneuver is performed when a pilot must abort or reject landing on the final approach or once the aircraft has already touched down.

NTSB says two planes were forced to perform go-arounds due to a U.S. Army Black Hawk helicopter near Reagan Washington National Airport (DCA) on Thursday.

The U.S. Army is finalizing the design of a new high-speed assault aircraft—the V-280 Valor—intended to replace part of the Black Hawk fleet.