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Making the Brazilian ATR-72 Spin
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Note: This story was corrected on August 10th at 10:23 am, thanks to the help of a sharp-eyed reader.
Making an ATR-72 Spin
I wasn’t in Brazil on Friday afternoon, but I saw the post on Twitter or X (or whatever you call it) showing a Brazil ATR-72, Voepass Airlines flight 2283, rotating in a spin as it plunged to the ground near Sao Paulo from its 17,000-foot cruising altitude. All 61 people aboard perished in the ensuing crash and fire. A timeline from FlightRadar 24 indicates that the fall only lasted about a minute, so the aircraft was clearly out of control. Industry research shows Loss of Control in Flight (LOCI) continues to be responsible for more fatalities worldwide than any other kind of aircraft accident.
The big question is why the crew lost control of this airplane. The ADS-B data from FlightRadar 24 does offer a couple of possible clues. The ATR’s speed declined during the descent rather than increased, which means the aircraft’s wing was probably stalled. The ATR’s airfoil had exceeded its critical angle of attack and lacked sufficient lift to remain airborne. Add to this the rotation observed, and the only answer is a spin.
Can a Large Airplane Spin?
The simple answer is yes. If you induce rotation to almost any aircraft while the wing is stalled, it can spin, even an aircraft as large as the ATR-72. By the way, the largest of the ATR models, the 600, weighs nearly 51,000 pounds.
Of course, investigators will ask why the ATR’s wing was stalled. It could have been related to a failed engine or ice on the wings or tailplane. (more…)
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How the FAA Let Remote Tower Technology Slip Right Through Its Fingers
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In June 2023, the FAA published a 167-page document outlining the agency’s desire to replace dozens of 40-year-old airport control towers with new environmentally friendly brick-and-mortar structures. These towers are, of course, where hundreds of air traffic controllers ply their trade … ensuring the aircraft within their local airspace are safely separated from each other during landing and takeoff.
The FAA’s report was part of President Biden’s Infrastructure Investment and Jobs Act enacted on November 15, 2021. That bill set aside a whopping $25 billion spread across five years to cover the cost of replacing those aging towers. The agency said it considered a number of alternatives about how to spend that $5 billion each year, rather than on brick and mortar buildings.
One alternative addressed only briefly before rejecting it was a relatively new concept called a Remote Tower, originally created by Saab in Europe in partnership with the Virginia-based VSATSLab Inc. The European technology giant has been successfully running Remote Towers in place of the traditional buildings in Europe for almost 10 years. One of Saab’s more well-known Remote Tower sites is at London City Airport. London also plans to create a virtual backup ATC facility at London Heathrow, the busiest airport in Europe.
A remote tower and its associated technology replace the traditional 60-70 foot glass domed control tower building you might see at your local airport, but it doesn’t eliminate any human air traffic controllers or their roles in keeping aircraft separated.
Inside a Remote Tower Operation
In place of a normal control tower building, the airport erects a small steel tower or even an 8-inch diameter pole perhaps 20-40 feet high, similar to a radio or cell phone tower. Dozens of high-definition cameras are attached to the new Remote Tower’s structure, each aimed at an arrival or departure path, as well as various ramps around the airport.
Using HD cameras, controllers can zoom in on any given point within the camera’s range, say an aircraft on final approach. The only way to accomplish that in a control tower today is if the controller picks up a pair of binoculars. The HD cameras also offer infrared capabilities to allow for better-than-human visuals, especially during bad weather or at night.
The next step in constructing a remote tower is locating the control room where the video feeds will terminate. Instead of the round glass room perched atop a standard control tower, imagine a semi-circular room located at ground level. Inside that room, the walls are lined with 14, 55-inch high-definition video screens hung next to each other with the wider portion of the screen running top to bottom.
After connecting the video feeds, the compression technology manages to consolidate 360 degrees of viewing area into a 220-degree spread across the video screens. That creates essentially the same view of the entire airport that a controller would normally see out the windows of the tower cab without the need to move their head more than 220 degrees. Another Remote Tower benefit is that each aircraft within visual range can be tagged with that aircraft’s tail number, just as it might if the controller were looking at a radar screen. (more…)
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Super Cubs Fly In for Ice Cream Before AirVenture
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In between airplane spoon scoopfuls of his Runway Sundae at Kelley’s Country Creamery, the group’s pilots explained what attracted 15 aviators and their backcountry capable airplanes to an alfalfa field in Eden, which is just south of Fond du Lac and Oshkosh: “We’re just a bunch of pilots who get together at New Holstein every year for AirVenture and to fly around Wisconsin and eat ice cream.”
What brings these pilots together is SuperCub.org, an online community formed in 2000. An interactive community of some 12,000 registered users from across the United States and around the world who have made more than 400,000 posts, the group’s motto is “Any Plane, Any Adventure.”
SuperCub.org organizes a number of fly-in gatherings around the United States, said Rick Ness, places like Johnson Creek, Idaho, Winifred, Montana, and one or two others. New Holstein is where the group gathers for EAA AirVenture.
For the past three years (skipping the shutdown horror that was pandemic 2020), flying down to Kelley’s for dessert has been a traditional after cookout dinner activity at New Holstein. If Mother Nature cooperates, they have four opportunities starting the Friday before AirVenture officially commences.
SuperCub.org members “Paul and Dana Osmanski from Beaver Dam, Wisconsin, saw that we had this nice alfalfa field,” said Karen Kelley, owner of the eponymous creamery, “and said that it might make a nice landing strip. Jeff Russell, from Madison, is a member of the group, and they came out, looked at the field and its layout with my husband, and decided what they could do for people to land and take off safely.”
After walking off the field with a measurement wheel, and outlining the hazards (powerlines along County Road B and a couple of perimeter barbwire fences that corral the black and white Holstein cows that call the Kelley family farmstead home) on an aerial view, they felt ready to go.
“The FAA knows what we are doing, but we didn’t have to do anything special with them or any other authorities,” Karen said. “They said they were fine with it. We don’t charge [the pilots for flying in]. They like to come and have ice cream at night.”
And they aren’t the only ones. Kelley’s announces the Super Cub dessert dates and times on the creamery’s Facebook page. And they prepare for it by mowing the alfalfa field, scattering a squadron of picnic benches around its white-trimmed red clapboard structure, and attiring its outside staffers in fluorescent orange vests to keep the spectators separated from the airplanes until all of them have landed and shut down.
Once the planes are secure and the pilots have had their desserts, they welcome the crowd to have a look at their planes, ask all the questions they like, with many of the pilots hefting youngsters up on the big bush wheels and into the front seats of not only Piper Super Cubs and 21st century Carbon Cubs but amateur-built Bearhawk Patrols, American Champion Scouts, and a mid-century Cessna 170B.
Like the SuperCub.org motto says, “Any Plane, Any Adventure.” Scott Spangler–Editor
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Don’t Pass the Historic Wendover Airfield By
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During World War II the US military carved thousands of airfields into the American landscape. Of the hundreds that still serve our aerial infrastructure, few maintain a general connection to their original mission. An exception might be Utah’s Wendover Army Airfield, a heavy bomber training base, established in 1940 because it was surrounded by desolate desert, perfect for needed bombing ranges. Many people, not just aviation history geeks, might know of it because it is frequently mentioned in the history of America’s use of nuclear weapons. Wendover is where the 509th Composite Squadron came together and trained for its missions over Hiroshima and Nagasaki.
Situated just across the Nevada border, about 400 miles down Interstate 80 from Reno, it is 120 miles west of Salt Lake City. On a 1974 motorcycle trip home to Chicagoland, I passed the exit for this small city (with the 2010 census counting 1,400 residents) because of Above and Beyond, the 1952 film about Paul Tibbets, the commander of the 509th. His wife accompanied him to Wendover, and the bleakness of these scenes led me to believe the base was miles distant in the surrounding desert, so I kept riding east. (It turns out that Davis-Monthan AFB stood in for Wendover.) Yesterday, when I learned about the relatively new Historic Wendover Airfield Museum, Google maps added another line item to my life list of missed opportunities.
Given its remote location, the airfield has served various military units off and on since VJ Day. Declared surplus for the final time in 1976, the government deeded most of the base, including runways, taxiways, hangars, hospital complex, and several warehouses to the City of Wendover for a civil airport (ENV).
The airfield made the National Register of Historic Places in 1975, the year after I passed by. Then, just a few more than 100 of its 668 World War II structures remained. Exploring them would have been more than worth the time I would have spent off the road. But the good news is that today, there are almost 90 surviving buildings, including the now-restored “B-29 Hangar” named for its most famous occupant, the Enola Gay, and the museum has a multiphase plan to restore them. Supporting this effort is the “Save Where They Walked” capital campaign.
No one knows whether I’ll pass that way again, but until then, I’ve already made a number of virtual visits on the first-class Historic Wendover Airfield Museum website, and once I’ve gotten this story scheduled for its JetWhine debut tomorrow morning, I’m spending the rest of the afternoon on the museum’s virtual tour. — Scott Spangler, Editor
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A Practical Solution to Airline Service Hell
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Everyone knows airline flying stopped being fun 20 or 30 years ago once a deregulated industry realized just how cheaply they could package and sell their product.
Along with searching for a low-price fare these days, we’ve all had to get used to the generally lousy customer service that comes with packed airplanes. When was the last time an airline employee listened to anything you said without responding there was nothing they could do about it?
Then flying went from bad to worse when COVID-19 hit in the early months of 2020 and demand fell off the edge of the planet. It didn’t take the airlines long to solve the problem as they tried to rid themselves of staff they wouldn’t need to pay as hundreds of aircraft were grounded. They offered thousands of pilots the opportunity to take early retirement, despite the $54 Billion the U.S. government shelled out to keep layoffs to a minimum. Many accepted the deal before the airlines realized they’d collectively shot
themselves in the foot. Near Labor Day 2020, the airlines also collectively began to realize they were going to need more pilots soon … much sooner than they’d ever thought.
Oops
Since Memorial Day this year, the need for pilots became dire as the airlines began canceling 10s of thousands of flights, stranding passengers everywhere. My daughter was on her way home from JFK to ORD that weekend when American canceled her flight after she and her fellow passengers sit at JFK for nearly four hours without so much as a sandwich or a cup of coffee. It took her two and a half days to finally make it to ORD. On July 3rd, the airlines canceled about 1,500 flights.
Just when most travelers thought airline flying could not possibly get worse, it did as inflation saw ticket prices skyrocket. Strangely, at least to me, people kept buying overpriced tickets, although I have a feeling that’s about to end. In addition to higher fares, packed airplanes, and lousy customer service, the airlines have now descended to another new low spot … they’ve become unreliable.
But at least the U.S. airlines are still safe with almost no passenger fatalities in more than a decade. But how much longer can they continue raising prices on a product they often can’t even deliver? (more…)