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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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Ercoupe is Affordable Solution to School’s Sport Pilot Needs
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News that a flight school now offers sport pilot training is quick to catch my eye. The March 2008 the Oklahoma Aviator reported that Oklahoma’s Chickasha Wings Inc. had added an Ercoupe 415-C to its fleet, which also includes two Cessna 150s, a 172, and a Piper Apache. Sport pilots can train in and rent the 415-C because it, like many J-3 Cubs and Champs, meets the light sport-aircraft weight and speed limitations.
The school went LSA shopping because "we have had many calls asking for sport pilot rentals," Mitch Williams, owner, says in the article. "We looked at new light sport-aircraft and legacy taildraggers and decided the Ercoupe was the best fit for us with its electric starter, tricycle gear, and side-by-side seating."
Calling him for more information, Williams says asking a solo student to prop the plane is a liability hazard, and it is "really windy here in western Oklahoma, and if I’m teaching someone to fly in [a taildragger], we’re gonna have to pick our days."
Going first to the vendors of new light sport-aircraft, getting something he could rent was $100,000, more than he wanted to spend. "I might spend $50,000 or $60,000, but I didn’t want to pay the big insurance and all that on having to borrow money."
Rental fees was another consideration. The hourly rate for any of the new LSAs would probably be $89 or more, Williams says, adding that "you’re always going to have a rental ending in 9; that’s just how it is [laughs]."
Williams paid $20,000 for the Ercoupe 415-C, which rents for $59 an hour solo and $79 dual. It has flown about 50 hours in its first two months, paying off on the calls that led to Chickasha Wings’ to offer sport pilot training. One caller has already earned his sport pilot certificate.
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Kick or Stick Your Airline Career; What Would You Do?
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Normally, Jetwhine does not post pieces without the author’s name. This is an exception since this story is from an active line pilot. We’ve changed the author’s name to protect what is left of their career. Admittedly, this is a little longer than what we usually run, but I think it’s well worth your time. In conversations with other pilots, I’ve learned that this pilot’s perspective does not represent an isolated case.
What would you do if you were faced with the same decisions as this pilot? Feel free to pass this on to a friend who might be in Roger’s situation.
Rob Mark, editor
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by Roger Miller
Well here I am in the 18th year of service as a pilot for one of our nation’s “legacy” air carriers.
I am 40 years old, and have been doing some deep thinking about some career options at this point in my life. Over the course of my career, I have accumulated over 12,000 hours of flying time. I currently fly as a first officer on the Boeing 777. Up until 3 years ago I was a captain on the Boeing 737 for almost five years.
In terms of an airline career, I have much to be thankful for in what I have accomplished at my age. I love to fly airplanes, and thoroughly enjoy the flight crews that I work with. It is a love of aviation and a part of our jobs that I often feel goes unappreciated in the upper management ranks at my company.
Despite these positive career attributes, the reality of many issues is starting to make me think about a few things.
Since my date of hire, I have not held on to a specific contract for more than 3 years. Every time our pilot group has been able to negotiate a contract, we have found ourselves giving concessions in some form. During the 1990’s we went through an era known as the Employee Stock Ownership Plan (ESOP). In exchange for pay and benefits, our employee group along with others would receive a controlling stake in the company after 6 years. A seamless contract renegotiation was also promised.
It all sounded like a good idea in the interest of long term stability and morale, so I voted for the deal. As time progressed, I started to feel a sense of pride as I watched my stock portfolio grow. I became excited as the close of the ESOP payment period came and the thought of a new contract would be entertained. The time came and went with little or no motivation by my company to talk to our pilot group. Our operation ran poor during the summer of 2000. Finally negotiations took place, and an industry leading contract was in place.
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A380 Comes to Life
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Every so often I stumble across something very cool that speaks more about our industry than I ever could … although I certainly intend to keep trying my best.
If you click on this link, you’ll be instantly snatched away from your desk right into a panoramic view of an A380 cockpit. It seems very fitting to climb aboard now that Singapore Airlines has visited the UK for the first time with their airplane.
Work your mouse controls a bit and you can look up to the ceiling and the overhead panel or zoom in on the first officer’s panel. Turn around to the jump seat and you’ll quickly figure out how massive this airplane really is. Don’t forget to check out the TV monitor between the throttles. It’s attached to a camera high up on the vertical stabilizer to give the crew a view no one else has. I wonder if they share that with the passengers?
Our thanks to the folks at the French firm Gilles Vidal for this incredible blending of art and technology. And since it is Easter here in the states, have a good bunny day.
From the Editor: Are you a Jetwhine subscriber? Details are in the upper right hand column above or at www.Jetwhine.com. If you know anyone who would also enjoy this blog of “aviation buzz and bold opinion,” please send them the link to this story. Thanks.