Model Airplanes

CityJet SSJ100 cabin
Brussels Airlines, which has been wet-leasing CityJet SSJ100s, did not renew its contract for the aircraft due to their “challenging maintenance” issues and “childhood diseases”. Aside from that, the airline insisted that the SSJ100 remains an “overall good” aircraft. “In general, even a small technical issue needs more time to be resolved than if it was an older type of aircraft. The collective experiences made so far with the SSJ are not yet very extensive. This results in longer maintenance dwell times, obliging Brussels Airlines to adapt its schedules and flight offers on a regular basis”, the company said. However, it added, “The SSJ100 offers high comfort and, on a regular basis, we receive positive feedback from our guests about the

Article source: https://www.exyuaviation.com/2019/02/adria-to-take-cityjet-sukhois.html

To avoid making anyone sick, the system would take three minutes to accelerate to that speed, and the train would need to travel six miles to turn 90 degrees, said Ismaeel Babur, one of the company’s senior civil engineers.

Because of its slow takeoff rate, “you’ll feel 30 to 40 percent of the acceleration compared to an airplane,” Mr. Babur said. The trip will be so smooth, he added, that “coffee won’t slide even at 600 miles per hour.”

Each of the three companies has raised tens to hundreds of millions of dollars and developed its own patented approach to long-distance mass transit. TransPod, with $52 million in capital, has preliminary agreements to build a six-mile test track for a route that would eventually span the 180 miles between Calgary and Edmonton in Alberta, as well as a shorter track near Limoges, France, for one of several French routes under consideration.

Hyperloop Transportation Technologies, which has raised $42 million, is in the design phase for a 1,100-yard test track in Abu Dhabi and is preparing to build a 350-yard test track in Toulouse, France.

Virgin, which has raised $295 million, is in the developmental stage with projects in India and Ohio. Last month, the Indian state of Maharashtra declared the company’s proposed hyperloop system between Pune and Mumbai as an official infrastructure project. Construction on a seven-mile test track could start this year, said Jay Walder, the company’s chief executive.

Computed Axial Lithography
Lawrence Livermore National Laboratory (LLNL) and the University of California at Berkeley have developed a 3D printing method to produce a new class of polymer parts.

The technology, called Computed Axial Lithography (CAL), projects photons on a resin in a vial within a 3D printer. In total, researchers have demonstrated the ability to shine 1,440 different projections with four beams into the resin.

The photons illuminate the resin as the vial rotates. This in turn creates shifting videos of projections as the vial rotates. Eventually, the process forms 3D objects in the resin. The process takes several minutes to complete. This is faster than existing polymer 3D printing techniques.

With the technology, researchers have devised a small airplane model, lattice structures and a miniaturized version of Rodin’s famous sculpture “The Thinker.” In the future, the technology could enable sports equipment, footwear, clothing and hearing aids.

“This is a breakthrough in the space of possible methods to do additive manufacturing,” said LLNL engineer Maxim Shusteff. “What this approach does is make it possible for interesting polymer parts to be made much more quickly, which is often a bottleneck, and we can now think about using materials that don’t work well with slower layer-by-layer methods.”

Chris Spadaccini, director of LLNL’s Center for Engineered Materials and Manufacturing, added: “This method is more powerful than other VAM (volumetric multibeam printing) concepts because it can create more complex structures in a layer-less fashion while using standard projection technology. It’s layer-less, it produces parts with good surface

Article source: https://semiengineering.com/manufacturing-bits-feb-19/

Fuselage is a cabin in a box. Yes, you read that right. Like Ikea desks and direct-to-consumer sofas, this new flatpack vacation home from Tree Tents is shipped to you in a box and can be constructed upon arrival.

Like its aeronautically themed name suggests, the tiny prefab cabin has a tubular shape that vaguely evokes elments of an airplane. From end to end the aluminum Fuselage stretches 17 feet long and is around 8 feet wide, making it certifiably cozy. Made from timber and recycled aluminum parts, the cabin is lightweight enough to stand on stilts or hang from a tree like a giant ornament (expert consultation advised).

The cabin has triple insulation, a wood burning stove, and radiant heating, meaning it will withstand chilly weather. The basic model, which starts at around $33,500 includes convertible furniture including a set of bunk beds, and a table/queen size bed.