Doc the Boeing B Twenty-Nine Superfortress, the Sixteen-Year Desert Rescue, and the Wichita Volunteers Who Put Her Back in the Air

Boeing B-29 Superfortress serial number 44-69972, known as Doc, flew combat missions over Japan from Tinian Island, sat abandoned in the California desert from 1956 to 2000, and returned to flight on July 17, 2016 after a sixteen-year rescue effort led by volunteers in Wichita, Kansas. She is one of only two airworthy B-29s on the planet. The story of how she got there is one of the most remarkable warbird restorations in American aviation history.

What Made the B-29 Superfortress Revolutionary

In 1942, the Army Air Forces confronted a fundamental strategic problem: the aircraft winning the war in Europe - the B-17 Flying Fortress and B-24 Liberator - lacked the range to reach the Japanese home islands and bring crews home. A new requirement was issued for an aircraft that had never been built before.

The specifications were extraordinary. The new bomber had to carry 10,000 pounds of bombs over 3,000 miles, cruise at high altitude, and do it with a pressurized crew cabin - so eleven men weren’t breathing through oxygen masks for twelve hours at a stretch.

Boeing’s answer was the B-29 Superfortress: a 141-foot wingspan, a fully loaded weight over 130,000 pounds, and four Wright R-3350 Duplex Cyclone radial engines producing more than 2,000 horsepower each. Two pressurized fuselage compartments were connected by a 33-foot tunnel running over the bomb bay - crews crawled through it at altitude to move between sections.

The armament system was unlike anything that had flown before. Remotely operated gun turrets were aimed by gunners in plexiglas observation blisters along the fuselage and coordinated through a central fire control computer that could direct multiple turrets onto a single target simultaneously. On-board computing in an aircraft, in 1944. It was wartime American engineering at its absolute outer edge.

The Engine Problem That Almost Killed the Program

For all of its technical ambition, the B-29 nearly destroyed itself before it ever reached Japan. The Wright R-3350 engines ran dangerously hot. Cowling design could not keep cylinder head temperatures inside safe limits during long climbs to altitude, and engine fires were common - not rare, not occasional, but frequent enough that the training accident rate shocked even wartime standards.

General Hap Arnold, driving the program from the top, was deeply worried. The production schedule was slipping. Crews were dying before a single combat mission was flown.

The program continued anyway, because the alternative - a ground invasion of the Japanese home islands - carried casualty estimates nobody was willing to accept.

How Wichita Built a B-29 Every Day

Boeing established a production facility in Wichita, Kansas to meet demand. At peak production, that plant rolled out a new B-29 every single day.

The workforce was made up of people who had been farmers, retail workers, teachers, and tradespeople before Pearl Harbor - many had never held a precision measuring instrument before 1942. They worked three shifts around the clock inside a factory where summer temperatures could hit 100 degrees with no air conditioning, building the most sophisticated aircraft in the history of aviation.

Some of them left handwritten notes tucked inside the aircraft’s structure during assembly - hidden in cavities where no inspector would find them - addressed to the crews who would fly these bombers. Notes that said things like: come home safe.

Doc rolled off the Wichita line in February 1945. She was assigned to the 9th Bombardment Group, operating from Tinian Island in the Marianas.

Doc’s Combat Service Over Japan

By early 1945, Tinian - a raised coral island barely fifteen square miles - had been transformed by engineers and Seabees into the densest airfield complex on earth. Hundreds of B-29s staged missions around the clock against Japanese industrial targets.

Doc flew those missions. Departing at night, forming up over dark water, flying 1,400 miles to targets defended by anti-aircraft fire and intercepting fighters. Eleven men in an aluminum tube, trusting that the pressurization would hold and the engines wouldn’t go to fire.

After the Japanese surrender, Doc returned to the United States and served in support and training roles through the late 1940s. As jet aircraft took over the military inventory, the big reciprocating-engine bombers became surplus. Doc ended up at China Lake Naval Air Weapons Station, used for a period as a drone controller aircraft. Then she was parked.

1956. The engines stopped for the last time.

Forty-Four Years in the Mojave Desert

The Mojave’s low humidity slows corrosion significantly - it is not the worst place to leave an aluminum airframe. But 44 years is a long time. By 2000, everything made of rubber was gone. The wiring was brittle and beyond any service life. The engines, open to desert air for decades, were filled with rust and debris. The hydraulic fluid had leaked away. The plexiglas blisters were cratered by ultraviolet radiation and heat.

When retired airline captain Tony Mazzolini stood in front of Doc in 2000, he was looking at an aircraft that would require an almost total rebuild. He also noticed, barely readable through the oxidation and grime, the nose art: one of Snow White’s seven dwarfs, lantern in hand.

Doc.

He made phone calls anyway.

Why Mazzolini Launched the Rescue

Mazzolini had been thinking for years about a specific vulnerability in aviation history. There was exactly one airworthy B-29 in the world - FIFI, operated by the Commemorative Air Force. One aircraft represented the entire type that had carried the Pacific air war to Japan. One engine fire, one bad landing, and the B-29 might never fly again.

Extracting an aircraft from a military installation requires navigating federal property disposal processes - declarations of excess property, environmental assessments, liability questions, removal costs. Mazzolini organized a nonprofit called Doc’s Friends, assembled a board, and worked through every step. It took years.

In 2013, Doc was transported to Wichita. She came home to the city where she was built.

The Restoration in Wichita

The restoration took place in a hangar at Yingling Aviation at Colonel James Jabara Airport, a general aviation field north of Wichita. What happened next was something the organizers had hoped for but couldn’t have entirely predicted.

The community came.

When word spread that someone was restoring a B-29, former Boeing workers began showing up. Retired engineers in their eighties and nineties who had worked on these systems when they were new. Their children. Their grandchildren. People whose families had built aircraft on that Wichita factory floor, who had a personal connection to the type that ran deeper than historical interest.

Volunteers gave weekends, holidays, and vacation days. The mechanical work was immense:

Four Wright R-3350 engines completely overhauled
Every seal and gasket replaced
Miles of wiring inspected and largely replaced
Fuel, hydraulic, and pressurization systems gone through piece by piece

Some parts no longer existed in any supply chain. They were machined from scratch using original Boeing engineering drawings that had survived in archives. Other components came from B-29 airframes in museum collections around the country - the warbird restoration community operates on an informal mutual aid that would surprise people outside it.

Three years of that work.

July 17, 2016: Doc Flies Again

The crowd at Jabara Airport that morning included restoration volunteers, former Boeing workers, veterans, families who had followed the project for years, children who had visited the restoration hangar on school field trips, and people whose parents had worked on that specific airplane in February 1945.

The engines started one at a time.

A Wright R-3350 Duplex Cyclone coming to life after years of silence begins as a rough, tentative coughing - the starter cranking against resistance, the big cylinders firing unevenly before fuel and timing settle into rhythm. Then it builds into a deep mechanical roar that is not smooth, not refined, not anything like a turbine. It is the sound of controlled combustion at enormous scale, and it goes through your chest before it reaches your ears.

Four engines. All four running.

The crowd went quiet - not politely quiet, but genuinely, spontaneously quiet. The way people go quiet when they understand without being told that something historical is happening in front of them.

Doc taxied out, rolled to the runway, and flew. For the first time since the Eisenhower administration, Doc climbed away from the city where she was born.

Where Doc Is Today

Doc is now based at the B-29 and B-24 Wings Over the Rockies education facility in Wichita. She flies airshows and carries passengers on living history flights - you can sit inside that pressurized fuselage and try to imagine what the men who flew these missions must have felt.

She and FIFI are the only two airworthy B-29s on the planet. Two aircraft. Two chances, at any given airshow, to understand something about scale and weight and history that no static museum display can fully give you.

When Doc makes a low pass with those four Wright Cyclones at full power, the enormous wing moving through real air, you understand what twenty-two-year-old men flew to Japan in the dark. You understand what the Wichita factory workers built in a Kansas summer without air conditioning. You understand why sixteen years and thousands of volunteer hours was a price worth paying.

Key Takeaways

Doc (B-29 serial 44-69972) was built in Wichita in February 1945, flew combat missions from Tinian Island, and sat abandoned at China Lake from 1956 to 2000 - 44 years in the Mojave Desert.
The B-29 was a technological leap that included remote-controlled gun turrets, onboard fire control computing, and a pressurized crew cabin - all during World War II.
Tony Mazzolini founded Doc’s Friends in 2000; the nonprofit spent over a decade navigating federal property disposal before Doc arrived back in Wichita in 2013.
The restoration relied heavily on volunteer labor from retired Boeing workers and their families, original Boeing engineering drawings, and parts sourced from museum collections.
Doc returned to flight on July 17, 2016, and is now one of only two airworthy B-29s in existence. She is based in Wichita and flies regularly.