The X-47B, a pilotless, experimental aircraft without a tail built by Northrop Grumman, is about as big as a fighter jet. It has no tail protruding above the wing, making it harder for the enemy to detect.

The X-47B, a pilotless, experimental aircraft without a tail built by Northrop Grumman, is about as big as a fighter jet. It has no tail protruding above the wing, making it harder for the enemy to detect.

NORTHROP GRUMMAN

CEO: Wes Bush.

Revenue: $33.76 billion in 2009; $32.32 billion in 2008.

Net income/loss: $1.69 billion in net income in 2009; net loss of $1.26 billion in 2008.

No. of local employees: 4,685.

Headquarters: Los Angeles.

Year founded: 1939.

Stock symbol and exchange: NOC on the New York Stock Exchange.

Company description: Defense contractor.

Software writers in Rancho Bernardo played a pivotal role in getting a pilotless, experimental aircraft without a tail off the ground for the first time Feb...

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