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NEWS: This MIT-Designed Drone Can Fly for Days at a Time

MIT has been taking off in drone-related news lately. Just yesterday we published a story about their recent development of drones that could drive as well as fly, and now it seems they’re ready to impress us all over again. Back in May, a group of engineers at the Institute successfully launched their “Jungle Hawk Owl” drone (which has a 24-foot wingspan) from the back of a car. This thing can supposedly stay in the air for five days without the need to refuel. You may be asking yourself: how the hell is that possible? Are they using solar power to run this thing, especially considering the Chinese recently successfully tested a drone that could stay aloft for an entire day? Well, MIT was on the same page, but quickly ran into issues.

The U.S. Air Force challenged numerous teams at MIT to develop a solar-powered drone that could stay in the skies for several days at a time. The idea was to find a more modern alternative to weather balloons, which have been the standard for delivering vital information across disaster zones and other emergency scenarios for decades. But unlike an unmanned aerial vehicle (UAV), a weather balloon is at the whim of wind gusts and other harsh weather conditions, and not always reliable. The goal was to design the ultimate replacement—more resilient, more efficient, and more controlled.

According to Professor Warren Hoburg, the co-lead of Beaver Works, the option to use solar panels was quickly dismissed because they would inherently require a larger drone on which to place them, making the UAV heavier and requiring a bigger battery. Not only that, but the winter months would limit the drone’s ability to recharge, as would varying latitudes off the equator with not enough daylight per day. Hoburg says, “It’s true that it’s less appealing to be running on gasoline. But building the solar airplane would be a big boondoggle. With the design we chose, we’ve already had a first flight. It was easy to build compared to the other aircraft available, and the cost and fuel consumption are really low. We spent more fuel getting to the launch site than flying the airplane for three days.”

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