Doc the B Twenty-Nine Superfortress, the Decades at China Lake, and the Wichita Volunteers Who Flew Her Home

On July 17, 2016, a Boeing B-29 Superfortress named Doc lifted off from McConnell Air Force Base in Wichita, Kansas - the same city where her sisters were built at roughly one per day during the peak of World War II production. After spending decades at China Lake Naval Air Weapons Station in the California desert, she was returned to flight by hundreds of volunteers and became one of only two airworthy B-29s in the world. What that required, and what it means, is worth understanding in full.

What Made the B-29 Superfortress Different

Boeing began designing the B-29 in the late 1930s, and the aircraft first flew in 1942. People sometimes underestimate this airplane. “World War II heavy bomber” conjures images of something lumbering and vulnerable. The Superfortress was something else entirely.

The aircraft featured a fully pressurized fuselage - not partial pressurization, but full. Crews working in the forward section could operate at 30,000 feet in near-shirtsleeve conditions. The standard experience for bomber crews of that era was biting cold, oxygen masks clamped to their faces, and hands too numb to work controls effectively. B-29 crews were operating in a fundamentally different environment.

The defensive armament was equally advanced. Remote-controlled gun turrets, directed by analog fire control computers from sighting stations inside the aircraft, replaced waist gunners hanging in the slipstream. In 1943, operating a weapon by computer from inside a heated fuselage was science fiction made operational.

Engines, Range, and the Threat That Never Went Away

Doc’s four Wright R-3350 Duplex Cyclone radial engines each packed 18 cylinders and produced over 2,000 horsepower. Across a 141-foot wingspan, they drove the aircraft to a combat range of approximately 3,000 miles with a bomb load of 10 tons - enough for round-trip missions from the Mariana Islands to the Japanese home islands.

The R-3350 carried a serious liability: it ran dangerously hot. Engine fires were not occasional hazards on B-29s - they were constant threats. Cowlings could glow red on long climbs. Crews developed an obsessive relationship with cylinder head temperature gauges, knowing that a bad trend could mean a fire moving faster than they could respond.

Those engines made possible a record that reshaped history. In the spring of 1945, B-29s conducted the incendiary raids that burned Tokyo. On August 6, 1945, a B-29 named Enola Gay dropped the first atomic bomb on Hiroshima, changing the course of human history in roughly 43 seconds.

Doc’s Path to the Desert

Doc was one of a group of B-29s named after Snow White’s seven dwarfs, a tradition from one of the wartime bombing groups. After the war, she followed the trajectory of surplus military aircraft everywhere: new jets made the Superfortress obsolete in the strike role, and the fleet dispersed through conversion, scrapping, and storage.

Doc ended up at China Lake Naval Air Weapons Station in the California desert, where she served as a ground trainer before eventually just sitting. The desert preserves metal - low humidity and sparse rain genuinely work in an abandoned aircraft’s favor. But preservation is not airworthiness. Those are two entirely different conditions, and by the time anyone came looking for her, Doc had been on the ground for decades.

Tony Mazzolini and the Long Road Out of China Lake

Tony Mazzolini was central to the effort to rescue Doc from China Lake. Getting the Navy to release her was itself a years-long process - a dimension of warbird rescues that is consistently underestimated. An aircraft does not simply become yours because you want it. Surveys, legal questions of ownership, conditions of transfer - all of it required working through. Mazzolini and the group that formed around the effort, eventually known as Doc’s Friends, navigated every step.

The team chose Wichita, Kansas as the restoration site. That decision carries real historical weight. Boeing’s Wichita plant had rolled out B-29s at roughly one aircraft per day during peak wartime production in 1944, with a workforce that included a large proportion of women building the bombers that would end the Pacific war. Bringing Doc to Wichita to be restored was full circle in the most literal sense.

Solving Thousands of Problems That Had No Off-the-Shelf Answer

The central challenge of any serious warbird restoration is that there is no parts catalog. For a B-29, that problem scales to a dimension most projects never reach. There is no manufacturer support and no aftermarket supply chain for an R-3350. Every machined component - master rods, articulating rods, supercharger gearing, ignition systems - had to be sourced from aircraft in worse condition, pulled from boneyards and museum storage, or fabricated from scratch by machinists working from original drawings.

The team sourced engines, disassembled them, evaluated what was there and what was not, overhauled what could be overhauled, and fabricated what could not. Ground runs followed - listening for what a healthy R-3350 sounds like and what it tells you when something is wrong. Four of those engines running together at idle, that rough and unmistakable warble no turbine engine ever replicates, reportedly shook the hangar to its foundations.

The work ran into the thousands of volunteer hours. Engineers, machinists, welders, and fabricators came from across the country. The FAA was involved throughout, issuing a special airworthiness certification under the experimental exhibition category - the regulatory path that allows a one-of-a-kind warbird to fly legally without meeting current type certification standards. The process is not fast, and it is not supposed to be. It is a systematic check on every assumption the restoration team made, and you want that check before asking a crew to take a wartime bomber into active airspace.

July 17, 2016: The Engines Start

On July 17, 2016, at McConnell Air Force Base in Wichita, four R-3350s started one at a time. The crew taxied out. A crowd of hundreds - some who had driven hours, some who had flown in from across the country, some who had given years of their lives to this project - watched Doc roll down an active runway for the first time in decades.

The engines came to power. She flew.

Every person who was there and has since tried to describe it runs out of words.

Doc Today: One of Two Airworthy B-29s in the World

Doc’s Friends operates Doc out of Wichita, taking her to airshows across the country. She is one of only two airworthy B-29 Superfortresses in the world. The other is FIFI, operated by the Commemorative Air Force, which has been flying for decades and given generations of people their first experience of what a Superfortress sounds like overhead. Two airworthy B-29s in the American sky. The sound of that era is not gone.

Flights aboard Doc are available to the public. Passengers can climb through the forward hatch, stand in the pressurized fuselage, make their way to the bombardier’s greenhouse in the nose, and watch Kansas fall away through curved glass as four radials pull the airplane into the sky. The same view the original combat crews had - minus the flak, the fighters, and the knowledge that Japan was a very long way from home.

Why a Flying Aircraft Is Different From a Museum Display

A static aircraft tells you what something looked like. A flying aircraft tells you what something was. The sound of four R-3350s on a morning ramp, the smell of hot oil and exhaust cutting through the air, the way over a hundred thousand pounds of aluminum and steel becomes something purposeful climbing into the sky - that information does not fit in a photograph or a placard on a museum wall.

The workers who built Doc at the Wichita plant in 1944 - the line workers, the crew chiefs, the pilots who flew her off the production line and handed her to a war - most of them are gone now. The airplane is not. Every time Doc appears at an airshow, trailing four prop discs across a summer sky, some piece of what those people made goes with her.

That is what a restoration actually is, when you get it right.

Key Takeaways

• Doc is a Boeing B-29 Superfortress restored by the volunteer organization Doc’s Friends and returned to flight on July 17, 2016, at McConnell Air Force Base in Wichita, Kansas.
• The B-29 was among the most technologically advanced aircraft of World War II, featuring a fully pressurized fuselage, computer-directed gun turrets, and a combat range of approximately 3,000 miles.
• Doc spent decades at China Lake Naval Air Weapons Station in the California desert before a years-long legal and restoration effort brought her back to Wichita - the city where she was originally built.
• She is one of only two airworthy B-29s in the world, alongside FIFI, operated by the Commemorative Air Force.
• Flights aboard Doc are open to the public, offering an experience of the aircraft that no static museum exhibit can replicate.