Tag Archives: Boeing

How To Reduce Fuel Burn By 60 Percent In Future Planes

Boeing Co unveiled a speedier and higher-flying version of a concept plane on Tuesday aimed at sharply reducing fuel use thanks to its elongated ultra-light wings. The so-called Transonic Truss-Braced Wing (TTBW) aircraft boasts a 170-foot (52 meter) wingspan that sits atop the fuselage and is braced from underneath by a truss in a design reminiscent of biplanes from the early years of aviation. The world’s largest planemaker and U.S. space agency NASA have been studying the concept plane for nearly a decade as part of the Subsonic Ultra Green Aircraft Research program. Boeing unveiled a reconfigured model or prototype and artist’s rendering at an aerospace conference in San Diego.

Chicago-based Boeing said it tweaked the plane’s designs with an optimized truss and a modified wing sweep that allow it to fly at speeds of Mach .8, or about 600 miles (965 km) per hour, slightly faster than previous designs but on par with current passenger jetliners. Boeing said the jet ideally would reduce fuel burn by 60 percent compared to an aircraft in 2005, but said it did not have final data to compare the fuel savings to present-day aircraft.

Source: https://www.reuters.com/

Electric Powered Flight Ten Times Less Expensive

Consumer passenger flight could be the next industry that’s transformed by electric powertrains, and Seattle’s Zunum Aero wants to be at the forefront of that change. The Seattle-based company, which is backed by Boeing’s HorizonX fund and Jet Blue’s Technology Ventures, has a plan to change the fundamental economics of regional flight, and shift the economics of air travel on a path towards eventual fully electric flight.

The first Zunum aircraft is designed for regional service, with seating for 12 passengers and a delivery window starting in 2022. The economics are potentially game-changing, with operating expenses of around $260 per hour for the aircraft. With a max cruise stepped of 340 miles per hour (547 km/h) in the air, a take-off distance of 2,200 feet (671 meters), a total hybrid-electric range of 700 miles (1127 km), which it hopes to scale to over 1,000 (1610 km) )in time and 80 percent lower noise and emissions vs. traditional regional planes, Zunum is position its airplane as the perfect way to light up under-utilized regional airports across the U.S., providing affordable and efficient commuter flights where economic realities have made running regular service impractical.

In the past, very intentionally, we were quiet about operating costs, because it’s just shockingly low what you can get with an electric. So that you can get an aircraft of a size that could never compete with an airliner that can get you below commercial fares,” Zunum Aero CEO Ashish Kumar told in an interview. He put the cost per seat operating expenses at around 8 cents per mile. “That’s about one-tenth the operating cost of a business jet per hour,” he said.

Source: zunun.aero
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