

The future of spycraft looks heavy, if this Boeing plane is any indication. Adding to today's parade of pretty new planes, Boeing unveiled a hydrogen-powered unmanned aircraft system Monday that will stay aloft at 65,000 feet for four days.

The Phantom Eye is not exactly sleek, but it's one of the greenest aircraft out there — its only byproduct is water.



In terms of power, Phantom Eye is a lightweight — it has two 2.3 liter, four-cylinder engines that provide 150 hp each, not much more than your average car. This makes sense, because Ford provided the engines, according to a Boeing news release.

The plane has a 150-foot wingspan and can carry up to a 450-pound payload, Boeing says. It will cruise at 150 knots, or 170 miles per hour.


It's the latest effort by Boeing to build aircraft powered by hydrogen. The firm claimed firsties on a hydrogen fuel cell aircraft back in 2008 when a different Phantom Works division flew a manned aircraft powered by hydrogen fuel cells.

Phantom Eye evolved from Boeing's Condor aircraft, also powered by a piston engine, which made history by reaching a top altitude of 67, 028 feet. Its likely descendants include the Phantom Ray drone, which looks like a slim B-2.

Boeing's Corpulent Hydrogen-Powered Spy Plane Will Fly at 65,000 Feet For Four DaysPopular Science is your wormhole to the future. Reporting on what's new and what's next in science and technology, we deliver the future now. [Boeing Phantom Works]