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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.
Max Trescott photo 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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AirVenture Volunteers: One Lady’s Story
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AirVenture Volunteers: One Lady’s Story
Publisher Note: One of the best parts about Jetwhine is that Scott and I often receive stories from readers out of the blue. While we can’t use them all, there are some that simply jump to the top of the pile as soon as we finish reading them.
This story, sent in last July by Marah Carney from Emporia KS, really caught my eye because it reminded me so much of the days when I too volunteered on the EAA flight line. Perhaps because I was celebrating an anniversary this year of my first volunteer days with orange paddles directing airplanes, or maybe it was just the sense of fun and energy about flying that I picked up on in Marah’s story. Really doesn’t matter I guess. The point is that there are still quite a few young people with a keen interest in aviation, keen enough to stand around in the hot Wisconsin sun as they help the airplanes park at AirVenture.
Three generations of Carney pilots. (L-R) Grandfather Glenn, Marah and Marah’s dad Mark And yes, I did manage to meet Marah and her dad Bob at this year’s AirVenture, but it didn’t take much cajoling to get them to don those snappy Jetwhine buttons.
Let me introduce you to Marah Carney, a student pilot and a Senior Member Captain in the Civil Air Patrol.
Rob
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Marshaling My Father
Ever since I was an AirVenture newcomer, I wanted to volunteer at the largest air show in the world. Nine years later in 2010, I finally had the opportunity. In the past, I would attend Oshkosh with my family. I have experienced the AirVenture culture by staying at Sleepy Hollow campground, boarding in a dorm room at University of Wisconsin Oshkosh, and from underneath the wing of our family’s aircraft on the North Forty. Then in 2010 I got to experience Oshkosh with the Civil Air Patrol at National Blue Beret. I worked hard to get slotted for National Blue Beret—many hours of training have finally paid off.
This year, I had the unique opportunity to marshal my father and grandfather into general aircraft camping (GAC). They took off in a Cessna 172 from small town Kansas headed for Oshkosh, Wisconsin. Our CAP’s Juliet Flight was tasked, Thursday morning, for Flight Line North. After a night’s stay in Portage, Wisconsin, my father and grandfather landed on runway 27 shortly after 0800. They pulled off onto the paved taxiway and began their trek to GAC.
At AirVenture 2015, Jetwhine Publisher Rob Mark, Marah and Marah’s dad Mark As a flight commander, my duty was to walk the flight line to check on the flight members and assist where needed. Because of a great distance between two marshalers, I was helping direct the ground traffic. Many Cessnas had landed about the same time, and all were in search of a camping spot. With the sun behind this particular Cessna, I could not tell the color or the tail number until it was almost past me. However, according a fellow fight member, I looked like a kid waving at my family after recognizing the tail number. Many hours of training had finally paid off.
It was a great privilege to marshal my father – then a fellow CAP member – and my hero at AirVenture 2010.
Marah Carney
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A Finite Fraternity: Combat Fighter Ace
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Frederick Payne, America’s oldest surviving combat fighter ace, died August 6 at age 104. According to his obituary in The New York Times, the retired U.S. Marine Corps brigadier general earned this singular achievement at the controls of a Grumman F4F Wildcat in the skies over Guadalcanal in 1942.
What’s interesting to me is that the pilots who will likely be America’s last two combat fighter aces, Duke Cunningham and Steve Ritchie, joined this finite community a mere 30 years after Payne, when they each downed the requisite five enemy aircraft in 1972 in the skies over Vietnam. Flying the F-4 Phantom, their back-seaters, William Driscoll and Charles DeBellevue, share this combat achievement. American aviators have logged a lot of combat time in the ensuring 43 years, but conflict has changed, and most of their targets are on the ground—or on the screen.
It seems clear that the era of the combat fighter ace exists only in history, and that those who’ve earned this distinction are members of a finite fraternity.
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Aviation is Work … Usually
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The team arrives at St. Barths I really don’t like traveling much any more. It’s usually way too much work on the airlines, efforts over which I usually have very little control other than complaining a bit on Twitter which doesn’t do much these days anyway. My business jet trips are fewer and farther between than the old days too.
Take my trip last week down to St. Maarten in the Caribbean for a media junket with 10 other writers, about evenly split between aviation and travel journalists. I swear the folks @americanair were trying to see just how cumbersome they could make the trip.
Despite American, I did know St. Maarten would be beautiful. And I knew I’d see a bunch of airplane geeks hanging around the fences at the approach end of SXM’s runway trying not to get blown over when KLM’s 747-400 poured the coals to it on takeoff. Sure the food would probably be scrumptious and yes, I knew I’d surely meet some memorable people from the islands.
But I also knew it was going to be work … the folks at Princess Juliana International airport wanted to show us SXM up close and personal, so we’d go back and tell others, many others what we experienced. I was ready, prepared even, because that’s my job these days, turning my eagle eye on some issue, some person or a place and synthesizing it all into some pithy text to be read by millions.
OK, OK so I’m not much of liar, except that the SXM folks really did want us to experience the region for a week.
And the trip to SXM was incredible, truly incredible. I’ve never seen such pristine waters or breathtaking views that close to sea level.
Certainly there are thanks in order, like the great ladies at SXM – Regina, Annmarie, Suzy and the others – for inviting me to experience the island and its role as a hub to its surrounding neighbors last week, but also a tip of the hat to the other writers who joined me on St. Maarten. While we more experienced writers may possess a wealth of industry knowledge, our younger colleagues also possess a solid grasp on new mthods to use technology for aviation story telling.
Liz Moscrop interviewing St. Barths airport managing director Fabrice Danet There was Seth from @runwaygirl and @wandrme, who always seemed to be managing three or four different video and still cameras.
Adam from @privatefly who insists his awesome Twin Otter video at St. Barths was only luck – A Close Up Arrival at St.Barths.
Leslie, alias @leslieyip0911, who turned the idea of delivering a Dominos pizza by plane into an awesome 1-minute branding spectacular in one day – Mashable Pizza Delivery Flight. Kristen from @BorderFreeProd, who shot more video about lush travel options and food than all of us put together I think, or @lizmoscrop who never appeared the entire week without her iPhone on a stick ready to shoot the next story. And these are only a few of the journalists I worked with.
St. Maarten’s Prime Minister Marcel Gumbs and Jetwhine Publisher Rob Mark talked aviation for an hour I can’t forget the print folks … @kcreedy, @allplane, @airdestinations, @hazelking25 and @atastefortravel. I hope I didn’t miss anyone.
And of course the great companies that sponsored part of last week like WinAir – @flywinair – for transportation between the islands, especially Helena De Bekker and the way she jumped into all the extra work we piled on her, Earl Wyatt From Seagrapes and his business partner Sheldon Palm from TLC Aviation and the Sonesta Ocean Point Reesort. There was Michel Hodge from the Airport Board of Directors, Nils Dufau from St. Barths’ tourism office, Greg Hassell and his crew from the SXM control tower that gave us the full ATC tour and of course Cdr. Bud @cdrbud who was the idea man behind much of the week’s events. A bunch of local writers connected with us as well like Fabian Badejo and Darlene Hodge. And who could forget our most excellent photographer Alain Duzant. (more…)