Flak-Bait, the Martin B-26 Marauder, and the Thousand-Patch Restoration at Udvar-Hazy

Flak-Bait, a Martin B-26 Marauder assigned to the 449th Bomb Squadron, 322nd Bomb Group, flew 207 combat missions over Europe in World War II - more than any other American aircraft in the entire war. When ground crews counted the repairs on its airframe after the war, they reached approximately one thousand patches. The Smithsonian Institution is now restoring the complete aircraft at the Steven F. Udvar-Hazy Center in Chantilly, Virginia, and every one of those patches is staying exactly where it is.

What Kind of Airplane Was the Martin B-26 Marauder?

The Glenn L. Martin Company designed the B-26 to an Army specification that prioritized speed over almost everything else. The result was a medium bomber powered by two Pratt & Whitney R-2800 engines producing close to 2,000 horsepower each, with a cruise speed of approximately 250 mph and a maximum speed approaching 300 mph at altitude - making it one of the fastest medium bombers in quantity production during the early war years.

That performance came with a serious trade-off. The wing was unusually short relative to the aircraft’s weight, producing one of the highest wing loadings of any combat type then in production. The B-26 had no tolerance for slow flight. Approach speeds were high, the stall was sharp, and errors on final approach left very little margin for recovery.

Why Did the B-26 Earn the Name “Widowmaker”?

When training commands began putting student pilots through B-26 transition at bases in Florida and Texas, the accident rate climbed - then climbed again. Pilots accustomed to more forgiving trainers found the Marauder uncompromising. It demanded precise power management, correct approach speeds, and a pilot who was mentally ahead of the airplane at all times.

Crews assigned nicknames that reflected genuine fear. “The Widowmaker” was the most common. Another was “The Flying Prostitute” - a reference to the short wings, and the dark observation that there were no visible means of support. The accident rate became serious enough to trigger congressional hearings, with voices in Washington calling for the B-26 program to be canceled or grounded pending investigation.

How Brigadier General Doolittle Rescued the B-26 Program

The program’s survival came down to a demonstration. Brigadier General James Doolittle flew to the training bases and took the B-26 through its full performance envelope - repeatedly, in front of instructors and crews. His message was direct: this was not a defective airplane. It was a demanding airplane that required discipline and correct technique. Fly it properly and it performed. Fly it sloppy and it punished you.

Training methods improved after that intervention, the accident rate dropped, and the crews who had mastered the Marauder took it to war. What had seemed like a liability in peacetime - that unforgiving performance envelope - proved to be an asset in combat. The B-26 was fast, it hit hard, and an experienced crew could push it through conditions that would have stopped a slower aircraft.

Flak-Bait’s First Mission: May 14, 1943

The 322nd Bomb Group was among the first B-26 units deployed to England. On May 14, 1943, the group flew its first combat mission: a low-level strike against a power station at Ijmuiden, Netherlands. The German antiaircraft defenses were waiting. Losses were devastating, and it ranked among the worst single days the B-26 community experienced in the entire war. Command revised tactics immediately, shifting to medium-altitude bombing in the 10,000-to-15,000-foot range, where accuracy remained effective and flak exposure was more manageable.

One of the aircraft that flew that day was a brand-new B-26 assigned to the 449th Bomb Squadron, serial number 41-31773. It was the airplane’s first combat mission. It came back. The ground crews who repaired it afterward gave it a name that fit: Flak-Bait.

A 207-Mission Record No American Aircraft Has Matched

Over the following two years, Flak-Bait flew from bases in England and later France as Allied armies advanced east. Targets included rail yards, bridges over the Seine and Rhine, fuel depots, V-weapon launch sites along the Channel coast, and airfields. The B-26 served as a precision tactical weapon, and the target list was always longer than the available aircraft.

Flak-Bait took hits on missions throughout that period. It returned with holes in the fuselage, wings, and tail surfaces. Crew members were killed in the aircraft - on one mission a gunner, on another the navigator. The men who flew it rotated home after completing their tours. The airplane outlasted them.

Lieutenant James “Pug” Pattillo flew many of Flak-Bait’s missions and became particularly associated with the aircraft. Combat aviators who fly the same airframe through dozens of missions develop a knowledge of that specific machine - how it handles under different load conditions, the sound of its engines at cruise, the feel of the controls in turbulence - that is specific to that airplane and no other.

By May 1945, when Germany surrendered, Flak-Bait had completed 207 combat missions - the record for any American aircraft in World War II, by a significant margin.

What One Thousand Patches Actually Mean

Most bombers lasted a fraction of that operational life. Crew tour lengths were set at 25 missions initially, later revised upward as the war progressed, because the statistical odds of completing even that many missions were not good. Airframes were lost to combat damage, accidents, and the ordinary attrition of sustained heavy operations.

Flak-Bait kept flying. The ground crews who maintained it became specialists in this one aircraft - they knew its problem areas, knew what to inspect first after every mission, and developed a working partnership with the machine. When someone eventually counted all the patches on the airframe, the total came to approximately one thousand. In sections of the fuselage, repairs outnumbered original panels.

Each patch marks a specific event: flak or antiaircraft fire penetrating the skin at that exact location, on some specific mission, over some specific target. A ground crew repaired it with the materials and methods available at a forward base in England or France. The airplane flew again.

The Smithsonian’s Restoration Philosophy: Preserve the Evidence

After Germany’s surrender, Flak-Bait was flown to England for disposal. Someone at the Smithsonian Institution recognized that this was not surplus equipment to be scrapped. It was the most-flown combat aircraft in American history, wearing its operational record on its skin.

The Smithsonian took the aircraft. For decades, the nose section was displayed at the National Air and Space Museum on the National Mall in Washington. The rest - fuselage, wings, empennage - went into storage, where conditions were not always ideal for long-term preservation of aluminum and fabric. By the time the Smithsonian made a formal commitment to restore and display the complete airplane, around 2012, the work ahead was substantial. Corrosion had progressed. Fabric control surfaces had degraded. Rubber components had hardened and cracked. Plexiglass had gone cloudy and brittle.

The restoration is being carried out at the Steven F. Udvar-Hazy Center in Chantilly, Virginia. Visitors can watch through a glass observation wall on any day the center is open - this is not staged demonstration work, but actual conservation happening in real time.

The Smithsonian is not restoring Flak-Bait to factory appearance. The goal is stabilization and preservation: stop the corrosion from progressing, document every repair and field modification, reconstruct fabric surfaces that are beyond saving using period-accurate materials and methods, and stabilize structures that require it. The patches are not being filled or hidden. To do so would be to destroy the artifact’s primary value - converting a witness into a replica.

Why the Documentation Work Is as Important as the Metal

Alongside the physical conservation, the restoration team conducted archival research. In the early years of the project, veterans of the 322nd Bomb Group and 449th Bomb Squadron were still able to contribute their recollections and photographs - accounts of what specific components looked like, how systems were maintained in the field, what kept one particular airplane flying mission after mission. As those veterans have since passed, the documentation they contributed has grown more irreplaceable, not less.

Skilled volunteers work with the professional conservators: retired engineers, metalworkers, aviation historians, people with decades of experience working on vintage aluminum aircraft. Their presence represents a second level of preservation - the hands-on knowledge of wartime construction methods and field repair practices being passed from experienced conservators to the next generation of people who will care for these artifacts.

When the restoration is complete, visitors to Udvar-Hazy will be able to walk around the entire aircraft. It will look like it has been to war, because it has. The patches will be visible. The history will be readable in the metal for anyone who understands what they are looking at.

Key Takeaways

Flak-Bait flew 207 combat missions with the 449th Bomb Squadron, 322nd Bomb Group - the record for any American aircraft in World War II, by a significant margin
The Martin B-26 Marauder was initially plagued by a high training accident rate due to its demanding flight characteristics; Brigadier General James Doolittle’s personal demonstrations stabilized the program
The aircraft received approximately one thousand patches over its operational life, with repairs outnumbering original panels in some sections of the fuselage
The Smithsonian’s restoration at Udvar-Hazy (begun in earnest around 2012) preserves every patch as primary historical evidence - filling or hiding them would erase the record
The restoration is publicly visible through an observation window at the Steven F. Udvar-Hazy Center in Chantilly, Virginia, on any day the museum is open
The project captures not just a physical artifact but veteran accounts, field repair techniques, and hands-on conservation knowledge that would otherwise be lost