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NASA Builds Ultra-light Wing that actively changes Shape to help Reduce Fuel Use

The wing also features actuators and computers that make it morph and twist to achieve the desired wing shape during flight

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NASA Aircraft. Flickr
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Washington, November 4, 2016: A team of NASA researchers and students is using emerging composite material manufacturing methods to build an ultra-light wing that actively changes shape to help reduce fuel use and improve flight efficiency.

Increased efficiency means less fuel is needed, which means less weight on the aircraft, which also increases efficiency.

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This “holy grail” of more efficient flight is always in the minds of the Mission Adaptive Digital Composite Aerostructure Technologies, or MADCAT, team at NASA’s Ames Research Center in California’s Silicon Valley, NASA said in a statement on Thursday.

The ultra-light wing that actively changes shape could be an important part of the future of green aviation, said Kenneth Cheung, co-lead on the MADCAT project.

This type of wing could improve aerodynamic efficiency in future flight vehicles by reducing the amount of drag caused by rigid control surfaces like flaps, rudders and ailerons.

Earlier studies of aerodynamics showed that the shape of a wing has enormous effects on flight — but there is not just one “best” wing shape.

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The best shape in any moment depends on many factors: how much the aircraft weighs, the speed it is flying, and whether the pilot wants to climb higher or descend, for instance.

This means that a rigid wing with a limited number of moveable surfaces — also rigid — is only a compromise and cannot be the most efficient shape for the whole of any given flight.

The researchers explained that the shape-changing wing is constructed from building block units made of advanced carbon fibre composite materials.

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These building blocks are assembled into a lattice, or arrangement of repeating structures — the way that they are arranged determines how they flex.

The wing also features actuators and computers that make it morph and twist to achieve the desired wing shape during flight, the researchers said. (IANS)

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Rocket Lab is Set To Launch 10 NASA CubeSats

They will be placed in RailPODs aboard the Electron rocket that will ferry them to space

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Kepler, NASA, tissue
Rocket Lab to launch 10 NASA CubeSats on Sunday. Pixabay

In its first mission for NASA, the American aerospace manufacturer Rocket Lab is set to launch 10 small research satellites, or CubeSats, from New Zealand, the US space agency said.

Owing to bad weather, Rocket Lab was forced to postpone the earlier decided launch on December 12.

Rocket Lab is now targeting the ELaNa-19 launch on December 15 with a launch window opening at 11 p.m. EST from the company’s launch complex on the Mahia Peninsula in New Zealand, NASA said in a statement on Friday.

The CubeSats were built by three NASA centres, seven universities, and a middle school under the NASA’s Educational Launch of Nanosatellites, or (ELaNa-19) mission.

ElaNa-19 is NASA’s first to be completely dedicated to launching CubeSats under the agency’s Venture Class Launch Services program for small-satellite launches.

More than 250 students have been involved in the design, development and construction of the CubeSats scheduled to be flown as payloads on Rocket Lab’s Electron rocket.

NASA, Hubble, Keplar, asteroids
Owing to bad weather, Rocket Lab was forced to postpone the earlier decided launch on December 12. Flickr

“The major difference between today’s launch and previous #ELaNa missions is that for the first time, NASA will have a launch completely dedicated to CubeSats rather than having the small satellites ride along with a much larger spacecraft that is the primary mission,” NASA Launch Services Program officials wrote on Twitter on December 12.

The 10 CubeSats are named as CubeSail, CeREs, NMTSat, CHOMPTT, ALBus, STF-1, ISX, RSat, Shields-1 and DaVinci, NASA said.

These are built to standard dimensions of one unit (1U), and can be 1U, 2U, 3U or 6U in size. They generally weigh less than 1.33 kg per U — 6U may be up to 12 kg.

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They will be placed in RailPODs aboard the Electron rocket that will ferry them to space.

After the main payload deploys, the CubeSats will separate from their RailPODs. After 45 minutes in orbit, the CubeSat transmitters will turn on and university ground stations will listen for their beacons, determine their small satellites’ functionality and announce operational status.

CubeSat mission durations and orbital life vary but are anticipated to last at least three years. Upon mission completion, the CubeSats fall to Earth, burning up in the atmosphere, NASA noted. (IANS)