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Article source: http://www.3ders.org/articles/20150506-airbus-chose-stratasys-to-3d-print-over-1000-parts-for-its-a350-xwb-aircraft.html

Nasa has built a battery-powered, 10-engine plane prototype that uses electric propulsion technology to take off vertically like a drone and then transforms in mid-air into a plane.

Greased Lightning, also known as GL-10, is a new unmanned aerial vehicle (UAV) that has just successfully completed its first test flight. Nasa is hoping that the plane could be remotely-controlled and used for mapping and long-endurance crop surveillance, as well as a personal air vehicle for up to four passengers.

The plane prototype features four electric engines on each wing that work as a single unit, together with two electric engines on the tail of the plane, but flying the GL-10 is more like controlling a three-engine plane. The plane has a 10ft (3m) wingspan and weights 28.1kg (62 pounds) at take-off.

Nasa initially wanted to create an aircraft with a 20ft (6.1m) wingspan that would be powered by hybrid diesel or electric engines, but they decided to build smaller versions first using 3D printed parts.

“We built 12 prototypes, starting with simple five-pound (2.3 kilograms) foam models and then 25-pound (11.3 kilograms), highly modified fiberglass hobby airplane kits all leading up to the 55-pound (24.9 kilograms), high quality, carbon fiber GL-10 built in our model shop by expert technicians, ” said aerospace engineer David North, based at Nasa Langley Research Center in Virginia, US.

“Each prototype helped us answer technical

Article source: http://www.ibtimes.co.uk/nasa-testing-10-engine-battery-powered-electric-plane-prototype-that-takes-off-vertically-1499690

Posted: Tuesday, May 5, 2015 8:42 am

Boeing 787 Dreamliner comfortably goes the distance

Terry Maxon, The Dallas Morning News (TNS)

Post-Bulletin Company, LLC

DALLAS — The newest airplane in the American Airlines fleet may be a pleasure to the eyes of passengers, but even more, it should be a treat for the carrier’s wallet.

The Boeing 787 Dreamliner, which begins commercial service for the Fort Worth-based carrier this week, comes with a reputation for saving airlines

Article source: http://www.postbulletin.com/business/boeing-dreamliner-comfortably-goes-the-distance/article_8675d0fe-9b1b-5820-9ded-118e8b6f09b1.html

Kepler has yet to graduate its first class, so it’s too early to tell whether the education will give way to steady employment. By most accounts, though, the school has made enormous strides in its first two years. Forty-nine of fifty students in the first class are on track to earn their Associate of Arts degree this June; the one exception is a female student whose graduation has been delayed by pregnancy. Kepler has engaged an independent data analysis firm to track student progress, so the model can be nimble as per student needs.

That said, no one at Kepler is under the illusion that they’ve perfected the system yet. “We’re building this airplane as we’re flying,” said Hedrick.

English proficiency has been a constant hurdle. This is due, at least in part, to the government switching the official language of instruction from French to English in 2008, which left many in the country in linguistic limbo. The hope is incoming students’ level of English will eventually improve. The Kepler staff estimates they currently spend as much as a quarter of their time addressing language issues.

A bigger question is how effective course facilitators can be without subject-area expertise. “I did not study economics,” said lead facilitator Aurore Umutesi, “but I’ve taught macroeconomics and microeconomics.” Using generalized instructors, who act more as guides than as teachers, saves money. But students like Sereverien Ngarukiye can find it frustrating. “[It’s a] challenge when they’re also not able

Article source: https://medium.com/bright/in-rwanda-building-a-university-in-a-box-a6202ff37aae

The event celebrates “Liberation Week” 70 years ago, when the United States, Canada and the United Kingdom dropped 200,000 tons of food by airplane to the Dutch, after the “hunger winter” in which a large proportion of Dutch Starved. Thus, planes build for war during World War II were used for humanitarian purposes on and around Victory Europe Day, May 8th. The food was delivered by low-flying airplanes and

was called Operations Manna and Chow Hound. Rosie the Riveters to represent Rosies to Holland are:

* June Robbins, who took drafting in high school near Philadelphia with the hope of working in the shipyards, which she did, making her one of few females who help draft parts on ships.

* Anna Hess, who left West Virginia with her mother to work in Akron, OH. Her mother riveted B29s at Goodyear, while Anna made truck tires at smaller plant nearby, when rubber from the tropics

was in increasing short supply because shipment was stopped by Axis Forces.

* Crena Anderson, who grew up in the depression in Pennsylvania promising her mother she would help support several younger children, and did by riveting “flying boxcar” airplanes at Fairchild

Aircraft in Hagerstown, MD. She married a Pearl Harbor survivor, when he died she married another Pearl Harbor Survivor, and when he died she contacted the Pearl Harbor Society and offered to provide hospice care to another Pearl Harbor survivor, who died about 3 years ago.

Hugo Keesing, Ph.D., was a starving infant when food was dropped, largely by B17 planes,

Article source: http://www.huntingtonnews.net/112590