-
Making the Brazilian ATR-72 Spin
by
No Comments
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…)
-
How the FAA Let Remote Tower Technology Slip Right Through Its Fingers
by
No Comments
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…)
-
Nominate a Member of Your Flying Family for a General Aviation Award
by
No Comments
Each of us has a flying family related not by blood or marriage but by the spirit of flight. Recognizing the contribution of an eligible flight instructor, maintenance technician, or FAA Safety Team teacher can be a challenge. So why not nominate them for this year’s General Aviation Award? The GAA board of directors just extended this year’s deadline to December 31, so if you are an industrious elf, you can get it done.
The eligibility requirements are pretty straightforward. The nominee must be actively working in the United States and hold a current FAA certificate appropriate to their chosen field. As you might expect, those with certificate actions or civil or criminal convictions are not considered.
Nominated flight instructors must be working in a Part 61, 141, or 142 educational environments. Aviation maintenance and avionics technicians can work under Part 65 or at a Part 145 repair station. Safety Team nominees must be actively involved in the FAA Safety Team.
Start at the GAA website, click on the Nominations tab, and download the GAA Nomination/Application MS Word form. (When you finish filling it out, you upload it on the same page.)
Before diving into the nomination form, discover the guidance offered in the Suggested Reading links: Tips for Writing a Nomination; About Your Aviation CV; Application Advisors; A Judge’s Advice; and Nomination Processing.
In addition to the two-page nomination form, you can upload up to three one-page letters of recommendation, one from a peer or co-worker, one from a client who is familiar with the nominee’s work and contribution to aviation, and one from the nominee’s supervisor (see the website for details). The nominee’s aviation-oriented curriculum vitae, (aka the CV), must be no longer than two pages.
Finally, you need supporting documents or examples for each major item listed on page 2 of the nomination/application form: Professional Activities; Continuing Education & Development; and Pro Bono Service to General Aviation. If the application package does not include clear copies of the nominee’s current US government-issued ID, both sides of the current FAA certificates, and a “photo taken within the past five years, in a professional aviation setting,” the selection committee will request these things should the nominee progress to national judging.
So, if a member of your flying family is worthy of the honor, there’s still time to recognize their contributions in a truly unique way, because your effort is the nominee’s gift, reward, and individual recognition because in all aspects of life, but especially in aviation, actions speak more honestly than words or a quick online shopping interlude. And from all of us here at JetWhine.com, may you have a safe holiday shared with family and friends. — Scott Spangler, Editor
-
Black Friday Aviation Inspiration
by
No Comments
Every seven years, Thanksgiving and my birthday get together on the same day. My oldest boy and his family made the 10-hour drive from Missouri to deliver themselves as the best present I could have ever hoped for, and that included Boomer, their 2-year-old Labrador. As my son walked out the kinks of this terrestrial journey, he said that with a Bearhawk 5, the object of his aviation desires, it would have taken two trips to get everyone and their baggage to Oshkosh, but it still would have taken less time than driving.
As we digested our Thursday feast with contented thanks, we suggested ways we could focus and consume the interest and energy of three grandsons, ages 5, 7, and 11. (Their older brother, a high school junior, was spending the holiday with his father.) Recalling his first exploration of the EAA Aviation Museum when he was 7, he said we had no other option than a return to this inspiring playground. I’m not sure who was more excited, my son or my grandsons.
Eyes grew wide and mouths fell open as we entered the museum’s atrium where six bright biplanes flew, the three Pitts Specials flown by the Red Devils Aerobatic Team, and the three Christen Eagles that replaced the Pitts and changed the team’s name. Admission paid (just $31 for the family of five; my current membership card got me in free), the docents offered the boys a scavenger hunt. If they could find and record all the individual letters on the airplane exhibits pictured on both sides of the sheet and decode the message they spelled out, each of them would earn a prize.
They were off and walking fast, their heads swiveling this way and that. Following the docent’s instructions, they shared their discoveries but didn’t ask their parents or grandpops for any help. Working our way down the entry level toward the Eagle Hangar, where we would head downstairs to find the letters associated with the airplanes they spotted from above, the scavenger hunt was forgotten, blown away by the pneumatic whoosh of the airlock entrance to the KidVenture Gallery.
They got hands-on with every exhibit and climbed into the F-22 and T-28 cockpit procedure trainer. And there was no waiting line because on Black Friday, we essentially had the museum to ourselves. At most there were three other families there. The announcement at 4:35 p.m. that the museum would be closing in 25 minutes motivated the Spanglers to conclude their J-3 Cub flights on the squadron of Microsoft Flight Simulator cubicles so the boys could complete the scavenger hunt, although I had a feeling that none of them would have complained about being locked in the museum overnight.
During dinner, the boys talked about what they’d seen and done that day and proudly pocketed their magnetic scavenger hunt rewards. It was one of those moments that made grandparenthood special, and I hoped that the memories we made this Black Friday would be lasting. It has been for my two boys, and the text message I got from my son when they arrived safely at home suggests the same may be true for my grandsons. It seems that they dedicated 2 hours or so of their drive home talking about airplanes. Who knows what time will bring? Maybe seven years from now, when Thanksgiving and my birthday again share the same day, perhaps my younger son and his family, which introduced the first granddaughter to our clan, will travel north for dinner and another Black Friday inspiration. — Scott Spangler, Editor
-
Veteran’s Day Reflection: Is it Time to Bring Back the Military Draft?
by
No Comments
Combine the historically low unemployment rate with decades of conflicts that citizens cannot remember, enumerate, explain, or even acknowledge knowing about them in the first place, and it should be no surprise that volunteers are ignoring the US armed forces help wanted pleas. Exacerbating the problem is that this potential military labor pool shrinks even further when you realize how few can pass the physical because of obesity and related health problems. The solution seems clear: Reinstitute the draft lottery for men and women with no deferments for anyone. The benefits of such a move, as history shows, go well beyond the military’s personnel needs.
In the last draft this country ever held I won the lottery with a low number, well below the increment of who would receive a letter of greetings from the commander in chief. Like thousands of others who faced the lottery during the 1960s and early 1970s, I had three choices, wait for my draft notice to arrive, hightail it for Canada, or enlist in another service, and I chose the Navy. What united me with everyone else who faced the lottery is that one way or another, we all had our skin in the game. What conflicts our elected officials got the country into mattered because we would be the ones who paid the price for facing the indicated foe.
When an all-volunteer force fights for America, other than the families of those who serve, its citizens have no skin in the game. Their only contribution is patronizing anyone who has served in any branch of the armed forces with the perceived patriotism of “Thank you for your service,” the banal equivalent of “Have a nice day.” How would such citizens feel about such service, and the conflicts their chosen elected officials pursued, if there was a chance that, without exception or excuse, their sons and daughters might be the ones paying the ultimate price. Maybe then they would be a bit more discerning in their electoral selections and more determined in holding their choices to account for their decisions on our behalf. — Scott Spangler, Editor