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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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Words Versus Military Tuskegee Top Gun Actions
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President Harry Truman signed Executive Order 9981 on July 26, 1948. It mandated the desegregation of the US military. Truman stood firm in the face of pushback from politicians and military officers of all ranks from all branches who opposed an integrated military. “I am asking for equality of opportunity for all human beings, and as long as I stay here, I am going to continue the fight,” he wrote in response.
The order concluded: “It is hereby declared to be the policy of the President that there shall be equality of treatment and opportunity for all persons in the armed services without regard to race, color, religion, or national origin. This policy shall be put into effect as rapidly as possible, having due regard the time required to effectuate any necessary changes without impairing efficiency or morale.”
The United States Air Force was not even a year old when Truman signed his Executive Order, but its inaugural secretary, W. Stuart Symington, supported it. In December 1949, the Air Force reported that the number of integrated units had doubled between June and August of that year. Ebony magazine wrote that this effort represented the “swiftest and most amazing upset of racial policy in the history of the US military.”
In January 1949, the Air Force held its first aerial gunnery competition, then called Top Gun, at Las Vegas Air Force Base, now known as Nellis, said Lt. Col. James Harvey III (above), in the AARP Reporting for Duty YouTube episode, The Untold Story of the First Top Gun Competition. Now 98, he wears the red blazer of the Tuskegee Airmen, of which he was one, and ball cap embroidered with “1st Top Gun Winner — 1949 P-47.”
The competition was open to all fighter groups; they would send their top three pilots and an alternate. The 82nd Fighter Group team flew P-51 Mustangs. The teams from the 27th, 52nd, and 325th fighter groups flew the hot, new P-82 Twin Mustang. The team from the 332nd, Harvey, Alva Temple, Harry T. Stewart Jr., and Halbert Alexander, flew the obsolete P-47 Thunderbolt.
Being phased out of active duty, and with no war to fight, the Thunderbolts competed in a gunnery contest with no gunfights. But the pilots were motivated, Harvey said. Before the team left for the contest, the squadron commander, Benjamin O. Davis Jr., said, “If you don’t win, don’t come back.”
The teams would compete in four events: aerial gunnery, shooting at a towed target; strafing a fixed ground panel; dive bombing, skip bombing, and rocket firing. The P-82s of the 27th won the aerial gunnery event with 34.720. Sighting down the Thunderbolt’s nose, and the 332nd was right behind them 32.840.
The P-51s of the 82nd took the lead by winning panel strafing, with the Tuskegee P-47s second. Dive bombing was next, and “No one did good that day,” Harvey said. The positions did not change and the scores of the top two teams were 170.567 to 153.255. Skip bombing was another story. Each member of each member of the 332 team had a perfect score of 6 for 6, putting them in the lead with 353.255.
The 332nd won the final event, rocket firing, giving the team an overall score of 536.588. Behind them were: 82nd 515.010; 27th 475.325; 52nd 253.189; 325th 217.550. When 332nd was announced as the winner, Harvey said, “The room was quiet. No one expected us to win. It was the last time the public would see the trophy for 55 years,” said Harvey, who went on to fly 126 combat missions in Korea and retired in 1965. “Our victory was swept under the rug.”
Historian Zellie Rainey Orr uncovered the trophy and it was put on display at the National Museum of the U.S. Air Force in 2004. Working with the Tuskegee Airmen, AARP’s Wish of a Lifetime learned of Harvey’s story and his wish to visit Nellis and see the 332nd listed first on roster of top gun winners. Working through the Air Force Foundation, AARP realized Harvey’s wish, and on January 11, 2022, a plaque was unveiled at Nellis AFB honoring this historic moment in Tuskegee Airmen history.
Actions speak louder than words in every instance. It took 73 years for the Air Force to recognize the 332nd victory, but the group’s commander, Benjamin O. Davis became the branch’s first black general officer in 1954. He earned his second star in 1959, and a third in 1965. President Bill Clinton awarded a fourth 1998. Tuskegee Airman Daniel “Chappie” James Jr. became the Air Force’s first four star general in 1975, when the branch was just 26 years old. General Charles Q. Brown Jr. became black Air Force chief of staff in 2020, first for any service.
Roscoe Robinson Jr. became the Army’s first black four-star general officer in 1982. Admiral Joseph Paul Reason earned his fourth star in 1996. The Marines promoted their first black officer to general when Michael Langley got fourth star in August 2022, just months before the Corps’ 247th birthday. — Scott Spangler, Editor.
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Wings Set Aviation Movie Standard in 1927
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Much has been made of the actors portraying naval aviators in Top Gun: Maverick being filmed in the aft seat of an F-18 Super Hornet to capture the sagging distortion of real-life g-forces. Compare that to the challenges faced by Charles “Buddy” Rogers who, in 1927, learned to fly so the camera operator, sitting backwards in the front cockpit of a World War I-era biplane, could capture him stick-and-ruddering his way through the dogfights choreographed for Wings. (And he kept flying and was a World War II Navy flight instructor.)
Wings was the last of the great silent movies and the first to win the Oscar for Best Picture at the inaugural Academy Awards in 1929. To recoup its $2 million cost ($33 in 2022 money), Paramount released it three times in three different years: The New York premiere in August 1927, in Los Angeles in January 1928, and across the United States in January 1929. Paramount released it a fourth time in 2012 with the restored original.
Available from several different sources, I recommend the DVD because it includes a special feature. To more fully appreciate this remarkable film, watch the special feature before the 144-minute restoration. While Rogers learned to fly for his role, the film’s director, William A. Wellman (right), and Richard Arlen, the other male lead, were already pilots. Wellman was a World War I pilot who saw no combat but earned the nickname of Wild Bill. Arlen flew with the Royal Canadian Flying Corps.
The drama focused on the two men, one rich, the other middle class, who were in love with the same woman, who was not Clara Bow, who had top billing. It introduced the world to Gary Cooper, whose first 90 seconds on film as a flying cadet who perished on a training flight flying figure eights, led to his star-crossed career. But the real star was Harry Perry, the cinematographer who figured out how to overcome the challenges of air-to-air movie making. And then there was the squad of “stunt pilots,” led by Rod Rogers. One of them, Hoyt Vandenburg, credited only in IMDb, taught Rogers to fly for Wings and went on to become the U.S. Air Force chief of staff from 1948 to 1953.
Vandenburg was a lieutenant stationed at Kelly Field in San Antonio, where Wellman filmed Wings with War Department support. Thomas-Morse MB-3s stood in for most of the good guys and Curtiss P-1 Hawks wore the Iron Crosses of the bad guys. More than 300 pilots participated in the aerial sequences, most of them active-duty Army aviators. And so did more than 3,500 soldiers from Fort Sam Houston (now part of Joint Base San Antonio), who recreated the epic Battle of Saint-Mihiel, on the five-acre training range it lent to the film. To prepare the battlefield, the army dug trenches and used the range for artillery training to give it an authentic shell-cratered surface.
Filming Wings took nine months, mostly because of the weather, specifically the lack of cumulus clouds that provided the necessary contrast and scale for the spectacular aerial footage. All the aviation films that have followed have been mere shadows of what Wings pioneered. And it might all have been lost, like the film’s originals negatives, had not Paramount found and restored a spare negative found in its vaults.
In 2012 Paramount released a meticulously restored hi-def version of the film on DVD and Blu-ray. They remastered and re-orchestrated the original score (remember, this is a silent movie). There’s also a pipe organ music option, which played around the nation’s smaller theaters. Skywalker Sound used archived audio tracks for the sound effects and the restorations includes the Handschiegl color process for the fires that consumed the aerial casualties. If you haven’t seen this masterpiece, treat yourself. You won’t regret it. — Scott Spangler, Editor
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Finding Fisk During AirVenture
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For an unincorporated community in the Town of Utica and Winnebago County, Fisk, Wisconsin, is without a doubt the most well-known small town in the world of aviation. Also known as Fisk Corners, its concise Wikipedia page explains its notoriety in three words: Fisk Approach Control.
As “a temporary FAA approach control facility guiding planes visually toward the active runways at Wittman Field during EAA AirVenture Oshkosh,” over the years millions have flown over Fisk, but few have ever found their way to the small white trailer on top of a hill on the way into the center of town.
In the shade of the trailer’s blue awning sit three pink-shirted FAA air traffic controllers, two scoping the sky to the south with binoculars and the man sitting between them talking almost nonstop to the pilots of the planes buzzing overhead.
It’s like the three of them are connected by some Vulcan mind meld. Both lookers are voicing instructions to the separate airplanes they have in view and the talker conveys them over the radio.
Establishing the arriving airplanes in a line at the proper speed and with the necessary separation is the goal. “RV up high, rock your wings. Piper, too fast, too high; lower your gear and flaps and come on down; there’s no one below you.” A fourth member of the team follows the Piper announces that its gear and flaps are in transit. “Good job listening,” says the first looker, and “Good job listening,” said the talker, “Welcome to Oshkosh.”
Another pink-shirted is talking to a husband and wife who found their ways to Fisk from Oshkosh. Eavesdropping on their conversation I learned that he was the facility supervisor who, along with an operation’s manager, spends the week at Fisk. Everyday starts at 0630 so the team of four controllers is ready to go when AirVenture opens for arrivals at 0700. Without any numbers, he said “it’s been a record year, and Sunday was a big day!”
Getting ready for the shift change at 1230, keeping his eyes on the sky and ears attuned to the lookers’ and talker’s steady flow of instructions, he works in answers to the visitors’ questions and prepares the charcoal grill so the incoming shift can prepare its lunch. All of the controllers seem to have developed multitasking to an impressive artform.
As AirVenture volunteers, during the week, each of the four-controller teams rotate among the four ATC facilities: Fisk Approach Control, the World’s Busiest Control Tower at Wittman Regional Airport, the temporary tower at Fond du Lac Airport (the closest divert field), and the two “Moo-Cows” (pink-shirt shorthand for mobile operating controller). Stationed on platforms adjacent to the runways, these pink shirts flag pilots on their way home into streams of arriving traffic.
With moderate winds this Thursday, controllers were using Runway’s 9/27 and 18/36 and their parallel taxiways as runways. The Moo-Cows work with a waivered hold-short line that’s closer to the active runway, so departing aircraft can safely and efficiently fill the open space in the arriving traffic flow. If something big is arriving, like the C-17 or the Boeings and Airbuses hulking over Boeing Plaza, Moo-Cows keep everyone at the everyday hold-short lines painted on the pavement, and the tower shuts-down arrivals to the parallels so the bigger arrivals have the necessary safety space.
When this situation arises, or like it did this Thursday, and the tower dedicates a runway or two to shortening the line of departing aircraft, it is up to Fisk to adjust the flow of arriving aircraft so they find their way to the arrival runways at a constant rate. When a runway is dedicated to departures, the lookers and talker barely have time to take a breath, but their tone of voices doesn’t change or resonate with any sense of stress. But when departure backlog has shrunk and is again ready for arrivals, the pink shirts can again take deep breaths between their instructions to follow the railroad tracks to Oshkosh. — Scott Spangler, Editor