The Monospinner: world’s mechanically simplest controllable flying machine

The Monospinner in flight.
Fig. 1. The Monospinner in flight.

The Monospinner (Fig.1), developed at the Institute for Dynamic Systems and Control at ETH Zurich, is the mechanically simplest, controllable, flying machine in existence. It has only one moving part (the rotating propeller), but can still fully control its position in space. The vehicle features no additional actuators or aerodynamic surfaces. 

Our research group aims at pushing the boundaries of flying machines by asking fundamental questions, such as “what is the minimum number of moving parts necessary for controlled flight?” All common flying vehicles require multiple moving parts: conventional quadrocopters, for example, have four moving parts (the four fixed-pitch propellers).  A helicopter’s main rotor requires a complicated swashplate mechanism with many moving parts, and a typical fixed-wing airplane requires one moving part for each of the ailerons, rudder, elevator, and main propulsion. Samara-type vehicles look like maple seeds (or samaras), and rotate while flying. These vehicles typically need two actuators to be controllable in position. Some toys have only one moving part, but are not controllable in the horizontal direction.

We set out to create a vehicle that has only a single moving part. The theoretical basis for this followed from previous work on quadrocopters, where we showed that a quadrocopter can maintain flight despite the complete loss of one, two,

Article source: http://robohub.org/the-monospinner-worlds-mechanically-simplest-controllable-flying-machine/

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Model airplane museum planned for Cumberland Township – Observer



WAYNESBURG – John Brodak’s dream of building a model airplane museum is cleared for takeoff.



Plans construct an addition onto Brodak’s building in Cumberland Township to house the museum for model airplanes received conditional final approval Monday from the Greene County Planning Commission.



The 4,000 square foot addition will be constructed on a commercial building along Park Avenue now occupied by the Brodak Manufacturing and Distribution Co. which produces model airplane kits.



Brodak, the largest manufacturer of model airplane kits, has been planning the museum for several years and first presented plans to the commission in 2011.



To receive approval, Brodak must submit an approved storm water management plan and a maintenance agreement on storm water improvements and receive state approval of the erosion and sedimentation control plan. Brodak said Tuesday he hopes to have the paperwork completed in the next few weeks.



“I want to have (the addition) under roof by the end of August,” he said.



The museum, which will occupy 7,000 square feet, will include artifacts not only of the history of model aviation and but also of aviation in general, Brodak said. Brodak said his intent in constructing the museum is “to preserve the history” of model aviation.



Though there is a model aviation museum

Article source: http://www.observer-reporter.com/20160503/model_airplane_museum_planned_for_cumberland_township

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Boeing deal with Iran ‘would turn American airplanes into warplanes’

Selling Boeing aircraft to Iran would turn airplanes into ‘warplanes’, three members of Congress claim.  

The American firm offered Iranian airlines three models of new aircraft to replace their aging fleet last month after President Obama reached a nuclear weapons deal with the Middle Eastern country.

Under the new diplomatic treaty, the US and Iran can exchange commercial aircraft. 

But a coalition of Republican lawmakers have come together to urge CEO Dennis Muilenburg not to go through with the plans.

In an open letter, Illinois Republican members of Congress Peter Roskam, Bob Dold and Randy Hultgren say any deal ‘would effectively subsidize the world’s leading state sponsor of terrorism.’

Boeing Co offered Iranian airlines three models of new aircraft to replace their aging fleet last month after President Obama reached a nuclear weapons deal with the Middle Eastern country

Boeing Co offered Iranian airlines three models of new aircraft to replace their aging fleet last month after President Obama reached a nuclear weapons deal with the Middle Eastern country

They highlight the Iranian government’s stake in Iran Air, and list the country’s ties to terrorism. 

‘We urge you not to be complicit in the likely conversion of Boeing aircraft to IRGC [Islamic Revolutionary Guard Corps] warplanes.’

‘The Islamic Republic is not simply an emerging market for Boeing. It is a radical Islamic regime dominated by zealots who seek

Article source: http://www.dailymail.co.uk/news/article-3571872/Boeing-deal-Iran-turn-American-airplanes-warplanes-Congress-members-claim.html

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The World’s Hugest Jet Engine Is Wider Than a 737’s Fuselage

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Coroner IDs pilot instructor killed in stunt-plane crash – Las Vegas Review

Benjamin Anderson Soyars III, 37, of Las Vegas, was the instructor pilot who was killed when a single-engine, stunt-ride airplane crashed Saturday near Jean, the Clark County coroner’s office said Monday.

Steven Anthony Peterson, 32, of Rohnert Park, California, was the other person who died in the crash of an Extra EA300 registered to Vegas Extreme Adventures LLC, the coroner’s office said Sunday.

The coroner’s office said Soyars and Peterson both died of blunt force injuries during the accident.

The plane left Henderson Executive Airport around 4 p.m. Saturday, according to a Federal Aviation Administration spokesman.

On its website, the Vegas Extreme Adventures company, also known as Sky Combat Ace, offers instructional aerobatic stunt flights and air tours, and in some cases allows customers to fly the aircraft with an instructor’s supervision. Prices range from nearly $300 to $2,000.

Calls by the Review-Journal to the company’s president, Richard “Tex” Coe, a former Air Force F-16 fighter pilot, were not returned Monday. A sign taped to the company’s entrance at 1420 Jet Stream Drive in Henderson states Sky Combat Ace’s office will be closed until May 9.

It’s unclear who was controlling the aircraft at the time of the crash. The National Transportation Safety Board and the FAA are investigating. A preliminary report from the safety board’s staff had not been released by Monday morning. The process can take five to 10 days.

“I cannot say who was in control at the time of the accident, as that would be speculation,” company spokesman Megan

Article source: http://www.reviewjournal.com/news/nevada/coroner-ids-pilot-instructor-killed-stunt-plane-crash

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Debunking the Drone Versus Plane Hysteria

The mass media are funny in the way they deal with new technology. First it’s all “Wow, that’s Cool!”, then it’s “Ooh, that’s scary”, and finally it’s “BURN THE WITCH!”. Then a year or so later it’s part of normal life and they treat it as such. We’ve seen the same pattern repeated time and time again over the years.

The mass media tech story cycle. Our apologies to Gartner. Curve image: Jeremykemp [ CC BY-SA 3.0 ], via Wikimedia Commons
The mass media tech story cycle. Our apologies to Gartner. Curve image: Jeremykemp [ CC BY-SA 3.0 ], via Wikimedia Commons

Seasoned readers may remember silly stories in the papers claiming that the Soviets could somehow use the technology in Western 8-bit home computers for nefarious purposes, since then a myriad breathless exclusives have predicted a youth meltdown which never materialised as the inevitable result of computer gaming, and more recently groundless panics have erupted over 3D printing of gun parts. There might be a British flavour to the examples in this piece because that’s where it is being written, but it’s a universal phenomenon wherever in the world technologically clueless journalists are required to fill column inches on technical stories.

The latest piece of technology to feel the heat in this way is the multirotor. Popularly referred to as the drone, you will probably be most familiar with them as model-sized aircraft usually with four rotors. We have

Article source: http://hackaday.com/2016/05/02/debunking-the-drone-versus-plane-hysteria/

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Science Says This Centuries-Old Discovery Will Save the Planet

The United States leads the world in the number of electric vehicles on the road, but the count is still tiny: about 350,000. That’s less than 1 percent of all passenger cars and trucks in the country. Recent market research suggests that number will climb steadily over the next several decades. But will it climb fast enough? When it comes to fighting climate change, that could turn out to be one of the most important questions of the next few years.

On April 22, world leaders gathered in New York City to sign the Paris Agreement on climate change, in which they vowed to keep global temperature rise to “well below” 2 degrees Celsius (3.6 degrees Fahrenheit) above pre-industrial levels, a limit the world is already more than halfway toward exceeding. Meanwhile, energy experts have begun to map out the fine-grain details of what meeting that goal would actually require. And it’s becoming increasingly clear that electric vehicles have a indispensable role to play. 

It turns out that one of the most immediate societal changes for average Americans in a climate-savvy future would likely be the electrification of just about everything. In other words, the hope of the planet could like in a force—electricity—we’ve known about for hundreds of years.

That might sound strange, given that electricity production is the number-one source of greenhouse gas emissions in the United States. Coal-

Article source: http://www.motherjones.com/environment/2016/04/electric-cars-coal-power-plants-climate-change

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