The Fire-X helicopter, a joint effort by Northrop Grumman and Bell Helicopter Textron, will be able to carry 3,000 pounds of cargo in a sling. The unmanned aircraft uses a Bell 407 helicopter as its airframe.

The Fire-X helicopter, a joint effort by Northrop Grumman and Bell Helicopter Textron, will be able to carry 3,000 pounds of cargo in a sling. The unmanned aircraft uses a Bell 407 helicopter as its airframe.

— After seven years of development on Fire Scout, an unmanned helicopter project that has grabbed the interest of the U...

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