A solar-power plane being tested off the Mississippi coast is pushing the limits of flight

Mar 25, 2024, 07:47 ET

‘Skydweller’ has the wingspan of a 747 jet, but weighs only 5,000 lbs. — and it has no pilot

Deep in the piney woods of south Mississippi, an aerospace company is pushing the boundaries of solar-powered flight.

Working from a temporary hangar at Stennis International Airport, a scant 15-minute drive from the Louisiana-Mississippi line, Skydweller Aero Inc. has been testing an unmanned airplane with a wingspan that stretches three-quarters of a football field and, the company promises, will fly continuously for 90 days or longer using only the energy from the sun.

The plane — also called Skydweller, which resembles a giant glider and only weighs as much as a Ford F-150 pickup truck — will fly without a pilot or human crew at speeds of around 35 mph and altitudes up to 40,000 feet, company officials say.

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