blimps

LEMV: Not Your Father's Blimp:  Lockheed Martin

The Long Endurance Multi-Intelligence Vehicle (LEMV), as it's called, will be 250 feet long, autonomous, and able to float at up to 20,000 feet for an impressive three weeks at a time. As for its surveillance capabilities, a 40-foot-long stretch behind the cockpit will house a selection of spy gear, including a motion sensor and radar.

Blimps first soared above battlefields in 1794 to spy on Austrian and Dutch troops. Now the U.S. Army wants them as radar platforms for defense against cruise missiles. A Raytheon-designed blimp made its first flight yesterday at Elizabeth City, North Carolina.

Forget those cigar-shaped dirigibles of yore. German-American collaboration has produced a tadpole-like airship that could debut within days, and make even a jaded Sky Captain take a second look.

Mammoth-sized blimps may work well as advertising tools, but soon they could be doing a lot more work than that. Aerospace and defense corporation Boeing and Canadian company SkyHook International are working together to create a 302-foot-long airship with rotors that can haul heavy loads—double the capacity of the biggest helicopter—across remote regions at a lower fuel and environmental cost.