Vanished 75 Years Ago With 44 Onboard, Ignored By Military, Could Civilian Team Find America’s Lost Air Force Plane? | World News

Lost US Air Force Aircraft: 75 years after a U.S. Air Force transport plane disappeared into the Yukon wilderness with 44 people on board, a group of volunteers, investigators and family members are launching a new search. This time they are relying on artificial intelligence, satellites and technology that did not exist even a few years ago.
The aircraft, Douglas C-54 Skymaster, took off from Elmendorf Air Force Base on January 26, 1950. On board were 42 soldiers and a civilian family, pregnant Joyce Espe and her young son Victor. Joyce was traveling for medical care.
Two hours into the flight, the crew contacted by radio with a routine update. They said ice had formed on the wings, but everything else looked normal. This message was the last message anyone heard.
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Skymaster never arrived at the next scheduled check-in, nor were any calls for assistance followed up. The aircraft disappeared leaving no wreckage, wreckage or survivors behind.
After weeks of fruitless searches, the U.S. Air Force ended its efforts. The case was erased from official memory. But for families, this never happened.
Environmental biologist Michael Luers, Jim Thoreson of the Civil Air Search and Rescue Association, and remote sensing expert Nelson Mattie have joined forces with Project Recover, a nonprofit known for finding missing soldiers. Together, they believe modern technology may finally solve a mystery that has haunted families for three generations.
Last Contact Over Yukon
The last voice heard from Skymaster belonged to Clare Fowler, a 22-year-old civilian radio operator stationed in Snag, Yukon. At around 23:00 the plane checked in and reported that everything was fine except for icy conditions. The next planned point of contact, Aishihik, was approximately 100 miles away. That call never came.
Snag was already famous for its extreme weather conditions. Three years ago, the coldest temperature ever measured in North America (minus 81 degrees Fahrenheit) was recorded. The Skymaster was flying unpressurized at 10,000 feet over rugged mountain terrain, leaving little room for error.
Investigators have long suspected that the plane iced over and crashed, possibly plunging into a glacier and disappearing under layers of snow and ice.
Luers understands these dangers firsthand. Years ago, a flight between Iceland and Greenland experienced severe icing. He personally experienced the icing of a plane and hundreds of giant water droplets freezing on the plane.
They couldn’t see 10 feet in front of the plane. The ice on the windshield and wings was an inch and a quarter thick. The pilot put them in a nosedive to within 500 feet of the sea, and ice the size of plywood was flying away.
The plane, located 500 feet above the water, survived by penetrating the clouds. Luers says the experience has never left him. This increases her determination to find Skymaster and the people who never came home.
Why Did the Army Go Away?
The accident occurred in peacetime and created a bureaucratic vacuum that still exists today. The Defense POW/MIA Accounting Agency only investigates soldiers lost in combat. No federal agency is responsible for tracking those lost in training accidents or routine operations.
In February 1950, the Air Force launched a search known as Operation Mike, named after one of the crew members. More than 25 aircraft participated, as well as thousands of American and Canadian soldiers. Search planes covered an area of 88,500 square kilometers under severe winter conditions in just three days. 4 planes crashed during the operation. All crew survived.
The search coincided with Operation Sweetbriar, a massive U.S.-Canadian military exercise that brought more than 5,000 troops to Whitehorse. The overlap created confusion in the field.
Local people could not tell the difference between distress calls and military calls. People all over the Yukon thought they saw parachutes or heard planes, but most of the information came from military maneuvers.
Then, on February 14, 1950, a US B-36 bomber carrying nuclear weapons disappeared over the Gulf of Alaska. This was the first ‘Broken Arrow’ incident in American history. All available resources were directed to this crisis. After the snow melted, the search for Skymaster was never resumed.
Over time, the story faded from public view. Families were faced with unanswerable questions.
In 2023, Luers asked former Utah Congressman Chris Stewart, a retired Air Force B-1 bomber pilot, to pressure the Air Force to reopen the case.
He made a solid, really tough push on the Air Force to persuade them to look. But they didn’t do this.
The Air Force said it would not reopen the investigation without “physical evidence confirming any aircraft discovery or potential high potential presence.”
It has been described as a glaring gap in efforts to search for missing soldiers, where those lost in combat receive constant attention, while most of those killed in non-combat incidents are not claimed as responsibility by any institution.
A Father Who Never Stops Searching
Joyce Espe’s husband, Sergeant Major Robert Espe, personally put Joyce Espe and her 23-month-old son on the plane. The last words he said to her were unforgettable. He told her that if a splash became inevitable, the baby should be handed over to his best friend, Sergeant Roy Jones, who was also on the flight.
Robert Espe never saw his wife, son or best friend again. He immediately joined the search, boarding one of the first planes to take off from Whitehorse.
One Sunday morning, he boarded the first search plane to leave the base and spent nearly nine hours searching in the air. She later described how she suffered hysteria and burst into tears.
He spent the rest of his life observing birthdays, talking about his lost family as if they were still alive, and writing letters to other families who lost loved ones aboard Skymaster. He later remarried and had two daughters.
One of these daughters, Kathy, married Michael Luers. Although the couple eventually divorced, they remained close friends. Kathy often wondered aloud what happened to her father’s first family.
It was explained that the child who lost his life in the plane crash was his half-brother, and that the effort was not to attract attention, but to locate the plane and reunite the 44 lost souls with their families.
Three Generations Unanswered
Another passenger, Sgt. Junior Lee Moore had sent a letter home before the flight. It opened with a memorable sentence: “I guess you thought I was dead or something.”
He promised to see his family soon. His nephew, Larry Floyd, was only a few months old at the time of the accident. Another relative, Corporal. Raymond Matheny was also on the plane. The two men did not know each other and were unaware of their family ties.
It was thought that what disturbed the family most was that the search effort ended abruptly and the government did not make any serious effort to search for the plane, leading to the feeling that the matter was never treated as a priority.
This loss changed their lives. Floyd’s parents developed a fear of flying. Floyd still thinks of his uncle every time he gets on a plane. On an Alaskan trip years ago, he turned down a flight trip to the Yukon.
Now, the renewed effort has brought a sense of hope. He expressed gratitude that the effort was finally underway and said knowing where the crash happened and what caused it would bring a sense of closure.
Why Did the Plane Remain Secret?
There are more than 500 documented aircraft wrecks in the Yukon. Only a handful of them are known to exist. Skymaster is the biggest of these.
Volunteers from the Civil Air Search and Rescue Association have used the case as a training exercise for decades, flying over the rugged terrain between Snag and Aishihik, which covers an area of approximately 4,500 square miles.
Thoreson, who has spent 32 years in search and rescue, has been working on the case since 2008.
He explained that the terrain was extremely harsh and difficult, adding that it was clear from the beginning the wreckage would be hidden under dense tree cover. He felt he had little chance of detecting anything from the air and said that even after 75 years, flying over the area in a small plane was no longer sufficient.
Dense forests and lack of search after the thaw likely concealed the wreckage. He said if the plane hit trees and exploded, it would be covered quickly. And if it had fallen under tree cover it would not have been visible from the air. He added that the wreckage would never have been found without scientific methods.
Technology Offers a New Way
Filmmaker Andrew Gregg came across this story while visiting the Yukon museum. He began investigating the crash and eventually interviewed Clare Fowler, who shared photos and details firsthand. He released the documentary ‘Skymaster Down’ in 2022.
This film brought attention to the case and led Luers to reconnect with Thoreson.
Over the next year, the team consulted experts and eventually identified tools that could make a difference. Nelson Mattie, Ph.D. candidate at the University of Alberta stepped in.
He said he contacted experts he had identified through various publications on remote sensing a few years ago, and Nelson responded by saying he wanted to help.
The plan combines synthetic aperture radar, multispectral satellite imagery and LiDAR, all analyzed by artificial intelligence trained to recognize aircraft wreckages.
He explained that the pixel size in multispectral imaging has been reduced to about 15 centimeters, and if the collision was fragmented, current technology can now detect small pieces of aluminum as well as four engines.
Mattie trained the AI by photographing known crash sites and using drones to capture detailed images of a stored C-54.
To train the AI to recognize debris, he said, they identified several known crash sites and used them to show the system what to look for.
If strong leads emerge, helicopters will be used to investigate, working with First Nations officials. The second phase will deploy high-density LiDAR, which can map the ground beneath thick forest canopy.
The Cost of Bringing Them Home
Phase One of the search requires approximately $160,000. A full LiDAR scan could cost $1.3 million. Vantor agreed to provide satellite imagery at a discounted price.
To fund this effort, the team launched the Yukon 2469 Mission Funding Campaign through Project Recover.
For Luers, Thoreson and the families, this effort isn’t about making headlines or getting recognition. It’s important for one reason: to bring loved ones home to their families.



