Doc the B Twenty-Nine, the China Lake Desert, and the Four Hundred and Fifty Thousand Hours That Flew Her Home

On July 17, 2016, a Boeing B-29 Superfortress named Doc lifted off from Wichita Eisenhower National Airport for the first time in over four decades. The aircraft had spent 42 years parked at China Lake Naval Air Weapons Station in the California Mojave Desert. Its return to flight represented one of the most ambitious warbird restoration projects in American aviation history - 450,000 volunteer hours over 16 years, carried out largely by unpaid technicians, mechanics, and engineers who believed the aircraft was worth saving.

What Made the B-29 Superfortress So Significant

The B-29 program began in 1939, when the Army Air Corps issued requirements that read like a wish list: a bomber capable of carrying 20,000 pounds of ordnance at 400 miles per hour to targets 3,000 miles away. No aircraft in production at the time came close to those specifications.

Boeing answered with a pressurized airframe - nearly unprecedented for a production bomber - equipped with remote-controlled gun turrets linked to an analog fire control computer, four engines producing over 2,000 horsepower each, and a fully loaded gross weight of 135,000 pounds. The range was sufficient to reach Japan from airfields in the central Pacific.

The aircraft worked. It also nearly didn’t.

The Engine Problem That Almost Killed the Program

The Wright R-3350 radial engines that powered the B-29 ran dangerously hot. Cooling was inadequate for sustained high-power operations over the long overwater missions the aircraft was designed to fly. Engine fires became a defining hazard of early production.

In 1943, the second prototype crashed into a meat packing plant in Seattle following an engine fire, killing the test crew and several people on the ground. The program nearly ended there. It survived only because the Army Air Forces needed what only the B-29 could do: reach Japan.

How the B-29 Ended the Pacific War

By 1944, the island-hopping campaign had a specific strategic purpose. Guam, Tinian, and Saipan gave the Army Air Forces airfields within striking range of the Japanese home islands - but only if the aircraft could cover the distance. The B-29 was the only platform that could. North Field on Tinian became one of the busiest air bases in the world, with hundreds of B-29 crews flying 3,000-mile missions to Japan and back.

Then General Curtis LeMay changed the approach entirely.

In early 1945, LeMay shifted from high-altitude daylight bombing with high explosives to low-altitude night raids with incendiary bombs. Japanese cities were largely wooden construction. Fire would do what explosives had not. LeMay brought B-29s down from 30,000 feet to below 10,000 feet, stripped most of their defensive armament to carry more ordnance, and sent them out at night.

The fire raid on Tokyo on the night of March 9–10, 1945, killed more people in a single conventional bombing mission than any raid before it. By the summer of 1945, the B-29 - built primarily on production lines in Wichita, Kansas - was the instrument that ended the Pacific War, culminating in the two atomic missions flown out of Tinian.

Boeing produced more than 3,900 B-29s in total.

How Doc Ended Up in the Mojave Desert for 42 Years

After the war, most of the fleet became surplus within months. A portion were retained for the Korean War, nuclear deterrence roles, and research programs. Some were sent to China Lake Naval Air Weapons Station in the California Mojave, converted to serve as controller aircraft for remotely piloted target drones used in weapons testing.

One of those China Lake aircraft had been built in Wichita. Her crew called her Doc.

When the drone programs wound down, Doc was parked on the ramp. She sat there for 42 years.

The Mojave’s low humidity slowed corrosion in ways a coastal or Pacific Northwest climate never could - which is why desert locations like China Lake and Tucson became long-term storage sites for aircraft the military no longer had a use for. Even so, 42 years of outdoor storage left Doc with flat tires, stiff control surfaces, a stripped interior, and weathered cowlings. Most observers who visited the China Lake ramp in those decades saw history that had already ended.

Tony Mazzolini and the Decision to Save Doc

Tony Mazzolini, a pilot and businessman based in Wichita, spent years working to gain formal access to the China Lake aircraft. Around 2000, he obtained permission to conduct a structural assessment of Doc.

The findings were both discouraging and encouraging. Discouraging because the scope of work was enormous - systems requiring replacement, corrosion requiring treatment, parts requiring sourcing, and an FAA documentation process that would add years to the timeline. Encouraging because the fundamental structure was sound. The main wing spars were intact. The fuselage was straight and untwisted.

The bones were good. The rest was work.

450,000 Volunteer Hours: What That Number Actually Means

The nonprofit Doc’s Friends, based in Wichita, organized and sustained the restoration. The project ran on donated funds and volunteer labor.

450,000 hours over 16 years. That is roughly the equivalent of 51 years of uninterrupted labor, day and night, without stopping.

The volunteers were not paid contractors. They were retired airframe and powerplant technicians, machinists, engineers, sheet metal workers, and people who had never touched an aircraft before in their lives but wanted to be part of something worth being part of. They came from Wichita, from across Kansas, and from across the country.

The parts problem alone would have broken most programs. The B-29 has not been in production since 1946. Every component that could not be salvaged from the aircraft itself had to be tracked down through government surplus catalogues, aircraft collections, or specialty machinists - and when no source existed, manufactured from engineering drawings that were themselves more than 70 years old.

The four Wright R-3350 engines required their own chapter. Each needed to be rebuilt to airworthy condition. Each required parts in limited supply and expertise from an ever-shrinking pool of specialists. Getting all four to simultaneous airworthy certification was a years-long effort.

The FAA Certification Process

Doc’s Friends worked in parallel with the FAA throughout the restoration. The B-29 holds an original type certificate - meaning the design itself was declared airworthy in the 1940s - but returning a specific airframe from decades of outdoor storage to certified flight condition is a different process entirely. System by system. Document by document. Every repair signed off. Every return-to-service action justified.

By all accounts, the FAA process was rigorous and fair, and it added years to the project. It was done correctly.

July 17, 2016: Doc Flies Over Wichita

High-speed taxi tests and engine runups in the spring of 2016 built toward the morning of July 17, 2016. The crew settled into positions that had not been occupied in flight in over four decades. The four R-3350s climbed to takeoff power. Doc broke ground at Wichita.

She flew for approximately one hour and forty-five minutes. The crew reported she handled exactly as she should. Every system the volunteers had rebuilt performed correctly.

The aircraft had been built in Wichita. It had gone to war. It had sat in a desert while the world changed around it twice over. And then, because of a pilot from Wichita and 450,000 volunteer hours, it flew again over the same Kansas ground where it was made.

Why This Matters: Only Two Airworthy B-29s Remain

Doc and Fifi - the Commemorative Air Force B-29 based in Midland, Texas - are the only two airworthy Boeing B-29 Superfortresses in the world. Out of more than 3,900 aircraft built, two fly.

The B-29 is not an aircraft people reach for first when they think of beautiful warbirds. It is large, angular, and industrial in its design. But the men who flew it were operating machinery at the outer edge of what could be reliably manufactured and maintained at the time - flying three-thousand-mile missions over open ocean in aircraft whose mechanical problems were still being resolved beneath them. They called it the greatest aircraft they ever flew and the most terrifying aircraft they ever sat in, sometimes in the same breath.

When Doc flies at airshows, the sound of those four R-3350s is not a recording. It is not a simulation. It is the same sound that crossed the Pacific at altitude in 1945. There are still living veterans who hear it and go somewhere the rest of us cannot follow.

Key Takeaways

Doc the B-29 Superfortress made its first flight in over 42 years on July 17, 2016, departing from Wichita Eisenhower National Airport - the same city where the aircraft was originally built
More than 450,000 volunteer hours were logged across the 16-year restoration, carried out by Doc’s Friends, a Wichita-based nonprofit running almost entirely on donated time and funds
The B-29 program nearly collapsed in 1943 after a prototype crashed into a Seattle meat packing plant following an engine fire; the aircraft survived because nothing else could reach Japan from the central Pacific
General Curtis LeMay’s shift to low-altitude incendiary raids in early 1945 transformed the B-29’s strategic role and contributed directly to ending the Pacific War
Of the more than 3,900 B-29s built, only two remain airworthy: Doc (Wichita, Kansas) and Fifi (Midland, Texas)