-
Making the Brazilian ATR-72 Spin
by
[sc name=”post_comments” ][/sc]
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
[sc name=”post_comments” ][/sc]
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…)
-
Business Aviation vs. the Airlines
by
[sc name=”post_comments” ][/sc]
Those of us who have either flown business airplanes or have been lucky enough to travel in the back – a few of us qualify for both – are light years ahead of the people we are still trying to convince about the value of personal air travel over the chaos of traveling on board the airlines, despite yesterday’s Jetwhine post on Virgin America.
As a corporate pilot, I can tell you that there is no greater Hell on Earth than making us travel on the airlines because we realize how much better air travel can be.
In the past few years, the thousands of business airplanes being delivered attest to the fact that travelers around the world are catching on to the benefits of air travel that keeps them as far away from an airline hub airport as possible.
Here’s a great little video clip the Cessna folks sent me that you absolutely must pass on to anyone who has ever wondered how or why a business airplane is a better way to travel. Enjoy.
And when you think new media like this YouTube clip, be sure and jot down the Jetwhine Blogger Fest at AirVenture, July 28, 4 PM at the GAMA bldg. We’ll be Twittering on the “airventure” ID as well. See you all there.
Technorati tags: Cessna Aircraft, Citation Mustang, Business Aviation, air travel, AirVenture 2008, Oshkosh Wisconsin, Jetwhine.com -
Virgin America: Reinventing the Wheel
by
[sc name=”post_comments” ][/sc]
Clever and creative are not terms people use much when they speak about the airline industry, except for a few of the “Gen Xer airlines” as I call the Low Cost Carriers because they really seem to get it.
I was listening to an engaging interview with David Cush, Virgin America’s CEO, on Bloomberg Monday when he mentioned one tiny little fact that I found superbly fascinating in an entirely intriguing 9 minutes. It reminded me again why airlines like Virgin, Southwest and JetBlue are so successful. They’re all trying to reinvent the wheel … but in a good way. These airlines simply refuse to see the air travel business as it was and seem to work tirelessly to imagine the airline world the way it might be.
Cush was talking about how his airline has customized the cabin service experience for all the passengers aboard their Airbus A-320s through the use of a simple piece of touch-screen technology made easier because all of Virgin’s aircraft, like JetBlue’s, are equipped with TV screens in front of each passenger.
Rather than running those knee-crushing service carts back and forth down the aisle, Virgin allows passengers to purchase a snack or a drink on demand during the flight. When they’re ready, they select an item on the TV screen at their seat and in a matter of minutes, the precise drink or meal is brought to their seat. No more being at the wrong end of the cabin when service begins.
Best of all, Virgin cuts down on the chaos of, “How do I get to the bathroom when there’s a 50-lb. cart between me and lav?” Sorry … You have to be old to think like that I guess.
Nice job Virgin.
Technorati tags: Virgin America, Southwest, JetBlue Airlines, Airline Travel, airline, David Cush, Bloomberg, Jetwhine.com -
FAA’s Bobby Sturgell Deserves a Break …Maybe
by
[sc name=”post_comments” ][/sc]
Close on the heels of this 4th of July comes the realization that the most heated presidential election we will probably see in our life times is really upon us. The relentless drum-beat from both nominees is that this nation is in serious need of some serious change.
While I’m not quite ready to throw in the towel with those who say the U.S. is busted, there is little doubt that the Congress has forgotten the meaning of the words leadership and compromise. No where does that seemingly worn out notion of leadership – or the lack of it – hit home more than at our own personal bunch of sky-bobbies, the FAA.
You’ve all heard me and many others beat these management folks up in the past year, whether it’s about the failure of the agency to negotiate some sort of settlement with the nation’s air traffic controllers, to the mess the inspectors uncovered with their bosses in Washington over how much self-policing the airlines should be allowed, to why a guy in a lawn chair over Idaho isn’t in jail for endangering the safety of the flying public after launching his balloon-powered seat over Oregon over this weekend. And don’t get me started on user fees and Next-Gen or the JPDO …
The overall responsibility for all this FAA silliness ends up precisely where it should, on the desk of Bobby Sturgell, the man who would be administrator pictured here with his political appointee pal Mary Peters.
But for once, let’s cut Bobby a little slack … not too much though, because while Bobby has proven he’s great at making speeches – thirteen in the past three months in fact – he is not up to the job of evoking change at the agency, much less leading it anywhere. When I went through FAA Management School in Lawton OK 20 years ago, management of everything was the job to be learned, not leadership. It seems that little has changed.
So why show Bobby Sturgell any mercy?