Skip to content
April 17:Bay of Pigs Invasion Begins65yr ago

The A-10 Warthog: Why the Air Force Can't Retire Its Toughest Plane

Ryan Caldwell · · 14 min read
Save
Share:
A-10 Thunderbolt II Warthog flying low over a desert landscape during a close air support mission
Ryan Caldwell
Ryan Caldwell

Defense Analysis Editor

Ryan Caldwell writes about military decision-making, failed programs, and the tradeoffs behind major defense choices. His work is focused on understanding why systems succeed or fail beyond headlines, promises, and initial expectations.

Here is a puzzle worth sitting with: the United States Air Force, the most powerful air arm in human history, has spent more than thirty years trying to get rid of one of its own aircraft. Not because it does not work. Because it works too well at something the Air Force would rather not be doing.

The A-10 Thunderbolt II, universally known as the Warthog, first flew on May 10, 1972. It entered operational service in 1977. Per the Air Force's official A-10 fact sheet, the aircraft was designed for a single mission: destroying Soviet tanks pouring through the Fulda Gap in a European ground war. That war never happened. By most institutional logic, the A-10 should have been retired when the Cold War ended. Instead, it kept finding new wars to fight and new reasons to stick around.

The real story of the A-10 is not its massive 30mm cannon or its legendary survivability. Those are well documented. The real story is institutional: why a service branch keeps trying to kill a plane that Congress, ground troops, and combat experience refuse to let die. It is a story about budgets, priorities, organizational identity, and the uncomfortable gap between what an institution wants to be and what a war demands it do.

A Plane Built for a War That Never Came

To understand why the Air Force has always been ambivalent about the Warthog, you have to understand what the Air Force is, organizationally speaking. The USAF was born from the Army Air Corps in 1947, and from its earliest days, the service defined itself through air superiority, strategic bombing, and technological supremacy. Fighters, bombers, and later ICBMs: these were the platforms that defined the institution's identity and consumed its budget.

Close air support (flying low and slow to help ground troops in contact with the enemy) never fit comfortably into that identity. It was the Army's problem. It was dangerous, unglamorous, and it required aircraft that prioritized toughness over speed. According to Air Force historical records, when the service issued the A-X requirement in 1966 for a dedicated close air support aircraft, it did so partly because the Army was developing the AH-56 Cheyenne attack helicopter and threatening to take the CAS mission away entirely. The A-10 was, in part, a bureaucratic move to protect institutional turf.

A-10 Thunderbolt II Warthog flying low over a desert landscape during a close air support mission
An A-10 Thunderbolt II in flight. The aircraft was designed from the ground up around a single mission: close air support of ground forces. (U.S. Air Force photo)

Fairchild Republic won the contract with an aircraft that was, by Air Force standards, deliberately ugly. The A-10 was slow, with a top speed around 420 mph, slower than some World War II fighters at altitude. It was not maneuverable in the fighter pilot sense. It could not compete for air superiority. What it could do was loiter over a battlefield for hours, absorb tremendous punishment, and deliver ordnance with precision in dangerously close proximity to friendly troops.

The aircraft was literally built around its primary weapon: the GAU-8/A Avenger, a 30mm seven-barrel Gatling gun that fires 3,900 rounds per minute. According to Air Force weapons data, the gun itself weighs roughly 620 pounds. The complete weapon system, loaded with 1,174 rounds of ammunition, tips the scales at around 4,000 pounds. The nose landing gear had to be offset to the right to make room for it. No other aircraft in history has been designed this way, weapon first and airplane second.

Surrounding the pilot sits 1,200 pounds of titanium armor, forming what crews call "the bathtub." The aircraft has redundant hydraulic systems, self-sealing fuel tanks, and a manual flight reversion system that allows the pilot to fly the airplane mechanically if all hydraulics fail. It can fly on one engine. It can land on dirt strips. It was designed by engineers who assumed their airplane would get shot, a lot, and who built it to keep fighting anyway.

All of these features made the A-10 superb at its job. They also made it a platform that did not align with where the Air Force wanted to spend its money and attention. From the day it entered service, the Warthog was an organizational orphan: loved by the people it supported, tolerated by the institution that owned it.

Desert Storm: The War That Saved the Hog the First Time

By the late 1980s, the Air Force was already talking about retiring the A-10. The Cold War was winding down. The Fulda Gap scenario was evaporating. Air Force leadership argued that newer multi-role aircraft like the F-16 could handle close air support while also performing other missions. Why maintain a single-purpose fleet?

Then Saddam Hussein invaded Kuwait, and the A-10 got a chance to prove itself in exactly the kind of war it was designed for.

Combat records from Operation Desert Storm show that A-10s flew approximately 8,100 sorties during the 1991 Gulf War. According to the Air Force's Gulf War Air Power Survey, they destroyed more than 900 Iraqi tanks, over 2,000 military vehicles, and approximately 1,200 artillery pieces. These were not marginal contributions. A-10s accounted for a disproportionate share of the coalition's ground target kills relative to the small size of the fleet.

A-10 Thunderbolt II landing on the flightline, showing the distinctive twin-engine profile and nose-mounted GAU-8 cannon
An A-10 Thunderbolt II lands at Osan Air Base. The Warthog's rugged design and close air support capability have kept it in service for nearly five decades. (U.S. Air Force photo by Tech. Sgt. Zachariah Lopez)

The performance was difficult to argue with. A-10 pilots operated at low altitude over a battlefield saturated with anti-aircraft fire, took hits, and kept flying. Five A-10s were lost in combat, a remarkably low number given the threat environment and the number of sorties flown. Several aircraft returned with damage that would have been fatal to any other airframe in the inventory.

Desert Storm did not just prove the A-10 worked. It created a generation of Army and Marine officers who had personally experienced what dedicated close air support looked like, and who would spend the next three decades fighting to preserve it.

The Pattern: Propose Retirement, Fight a War, Repeat

What followed Desert Storm established a pattern that has repeated with remarkable consistency. The Air Force proposes retiring the A-10. A war breaks out, or a contingency arises, where the Warthog proves indispensable. Congress intervenes. The retirement is postponed. The cycle begins again.

In the mid-1990s, with the post-Cold War "peace dividend" driving budget cuts, Air Force leadership again pushed to divest the A-10 fleet. The argument had evolved: multi-role fighters were getting better precision weapons, and the service needed budget flexibility for next-generation programs. Before the case could be fully made, the A-10 deployed to the Balkans, providing close air support and forward air control in Bosnia and Kosovo.

Then came September 11, 2001, and two decades of sustained ground combat in Afghanistan and Iraq. The A-10 became the most requested close air support platform among ground troops. It was not even close. Army and Marine units wanted the Warthog overhead because it could do things other aircraft could not: loiter for extended periods, fly low enough to identify targets visually, deliver ordnance with the precision that danger-close situations demanded, and survive the ground fire that came with operating at those altitudes.

Captain Kim Campbell: Baghdad, 2003

On April 7, 2003, Captain Kim Campbell was flying close air support over Baghdad when her A-10 took a barrage of anti-aircraft fire. As she later recounted in interviews, the damage was severe. Both hydraulic systems were destroyed, the kind of failure that on any other fighter would mean ejection or a crash. Campbell switched to the A-10's manual reversion system, a mechanical backup that allows the pilot to control the aircraft through direct cable linkages. She flew the crippled Warthog for roughly an hour, nursing it back to a forward operating base, and landed safely.

Campbell's flight became one of the most famous A-10 stories of the Iraq War, but it was not unique. Multiple A-10s returned from Iraq and Afghanistan with damage that exceeded what any reasonable person would consider survivable. These incidents were not just dramatic anecdotes. According to Air Combat Command maintenance records, they were data points in an ongoing argument about whether any other aircraft in the inventory could do this job.

The Air Force's Case: It Is Not Irrational

Here is where the A-10 story gets more interesting than the simple narrative of "stubborn bureaucrats trying to kill a beloved plane." The Air Force's case for retiring the Warthog is not irrational. It is, in many respects, strategically sound. The problem is that sound strategy keeps colliding with messy reality.

The core argument goes like this: the A-10 is a single-mission platform in an era when the Air Force cannot afford single-mission platforms. According to Air Force budget documents, every A-10 in the fleet means one fewer F-35, one fewer KC-46 tanker, one fewer maintenance slot, one fewer pilot training pipeline. The service faces what it calls a "fighter gap," with too few aircraft to meet all its commitments. Retiring a single-purpose airframe and redistributing its missions to multi-role platforms would free up resources for higher-priority needs.

F-35 Lightning II flying in formation, representing the next generation of Air Force tactical aircraft
The F-35 represents the Air Force's vision of the future: a multi-role platform that can perform CAS among many other missions. Whether it can match the A-10's effectiveness in that specific role remains debated. (U.S. Air Force photo)

There is also the survivability question, and the Air Force raises it honestly. The A-10 was designed to survive small arms fire, anti-aircraft artillery, and man-portable surface-to-air missiles, the kind of threats found in Iraq and Afghanistan. Against a peer adversary like China or Russia, with modern integrated air defense systems featuring radar-guided missiles and networked fire control, the A-10's low-altitude, low-speed profile becomes a liability rather than an asset. As congressional testimony from Air Force leadership has repeatedly stressed, sending A-10s into a contested environment without first achieving air superiority and suppressing air defenses would be sending pilots to die.

The Air Force also argues, correctly, that the F-35 and other modern platforms can deliver precision-guided munitions from higher altitudes with greater accuracy than the A-10 could achieve a generation ago. Technology has changed the close air support equation. GPS-guided bombs dropped from 20,000 feet can hit within meters of the target. You do not always need to be low and slow to support ground troops.

These arguments are legitimate. The mistake is assuming they settle the question.

What the Tradeoff Crowd Misses

The case for keeping the A-10 is not just emotional attachment, though that exists in abundance. It rests on several operational realities that the retirement advocates have never fully addressed.

First, close air support is not just about dropping ordnance. It is about presence, communication, and judgment. An A-10 orbiting overhead at low altitude for two hours, in direct radio contact with a ground controller, responding to a fluid situation in real time: this provides something qualitatively different from an F-35 making a single pass at 25,000 feet. The GAO's 2016 assessment of close air support found that ground troops consistently report feeling more supported, more confident, and more willing to maneuver aggressively when a Warthog is overhead. Whether this "psychological effect" belongs in a Pentagon budget spreadsheet is debatable. Whether it affects combat outcomes is not.

Second, the Warthog's operating cost is a fraction of its potential replacements. Per Air Force cost-per-flight-hour data, the A-10 costs approximately $6,000 per flight hour. The F-35A runs roughly $35,000 per flight hour. Using a fifth-generation stealth fighter to perform a mission that a 1970s-era attack plane handles effectively is, by any accounting standard, an expensive way to fill a capability gap. For every hour of CAS coverage the A-10 provides, replacing it with an F-35 costs nearly six times more.

Third, not every future conflict will be against a peer adversary with advanced air defenses. The counterinsurgency and counterterrorism operations that dominated the post-9/11 era may not define the future, but they have not disappeared. As the Congressional Research Service reported in its assessment of close air support alternatives, the A-10 remains extraordinarily effective in permissive and semi-permissive environments, exactly the environments where close air support is most frequently needed.

Fourth, the gun. Modern precision munitions are remarkable, but they require target coordinates, laser designation, or other external inputs. The GAU-8/A requires a pilot with eyes on the target. In situations where targets are moving, where the enemy is mixed with civilians, where coordinates are uncertain, or where the situation is changing faster than the targeting cycle can keep up, a pilot who can see what is happening and put rounds on target in seconds provides a capability that standoff weapons cannot replicate.

Congress Steps In, Again and Again

The political dimension of the A-10 story is as remarkable as the operational one. The U.S. Congress has intervened to block A-10 retirement multiple times, and the motivations are more complex than simple pork-barrel politics.

In 2014, the Air Force proposed retiring the entire A-10 fleet to save approximately $3.5 billion over five years, freeing funds and maintenance personnel for the F-35 ramp-up. Congress blocked the move. In 2015, the Air Force tried again, proposing a phased drawdown. Congress blocked it again, inserting language into the National Defense Authorization Act that specifically prohibited reducing the A-10 fleet below a certain number.

The congressional pushback was not primarily about jobs in A-10 basing districts, though that played a role. It was driven by testimony from ground combat veterans and active-duty Army and Marine officers who told lawmakers, bluntly, that no other aircraft provided the same level of close air support. When a sergeant who has been in a firefight tells a senator that the A-10 saved his life and nothing else in the sky could have done the same job, that testimony carries weight that cost-benefit analyses struggle to match.

Senator John McCain, himself a former Navy pilot and prisoner of war, was among the most vocal defenders. His argument was not sentimental. Drawing on his experience on the Senate Armed Services Committee, he contended that the Air Force had not demonstrated that any alternative platform could replicate the A-10's close air support capabilities, and that retiring the fleet before proving a replacement was operationally irresponsible.

The Current Status: A Slow Goodbye

As of 2025, the Air Force appears to be finally achieving what decades of retirement proposals could not accomplish: a gradual, politically palatable drawdown. Rather than proposing an abrupt fleet retirement, the service has pursued a strategy of attrition, reducing the active A-10 fleet incrementally, shifting aircraft to the boneyard at Davis-Monthan Air Force Base in Arizona, and allowing the fleet to shrink through natural aging and maintenance decisions.

According to Air Force budget documents submitted to Congress, the service has been retiring A-10s in small batches, with plans to fully divest the fleet by the late 2020s to early 2030s. Congress has gradually relaxed its restrictions, partly because the A-10's airframe is genuinely aging (some aircraft have been flying for over 40 years) and partly because the political landscape has shifted toward great power competition, where the A-10's survivability limitations are harder to dismiss.

The 2024 and 2025 budget proposals included provisions to retire additional A-10 squadrons, and Congress offered less resistance than in previous years. The writing, it seems, is on the wall. But even now, the retirement is happening slowly and grudgingly, with advocates on both sides making the same arguments they have been making for three decades.

What This Fight Really Tells Us

The A-10 retirement saga is not really about one airplane. It is a case study in how large institutions manage competing priorities, and how battlefield experience can override institutional preference for decades.

The Air Force is not wrong to want multi-role flexibility. Military budgets are finite, and every dollar spent maintaining a Cold War-era attack plane is a dollar not spent on the next generation of capability. In a world where China is fielding advanced air defenses and hypersonic weapons, optimizing for counterinsurgency close air support is a strategic gamble.

But the ground troops and their congressional allies are not wrong either. Close air support is not an abstraction. It is the difference between a platoon that gets overrun and one that fights through. The A-10 does this job better than anything else in the inventory, and "the F-35 can do it too" is a claim that has never been tested under the conditions where the A-10 proved itself.

The deeper lesson is about specialization versus flexibility — a tradeoff that runs through every major military procurement decision in history. Specialized platforms excel at their designed mission but consume resources that could be applied elsewhere. Multi-role platforms offer flexibility but accept compromises in each individual mission. Neither approach is universally correct. The right answer depends on what wars you actually fight, and nobody knows that in advance.

The A-10 survived because the wars America actually fought after the Cold War demanded exactly what it was built to do. If the next conflict is a high-end fight against a peer adversary, the Air Force's case for retirement will be vindicated. If American troops find themselves in another ground-intensive conflict where close air support determines who lives and who dies, the absence of the Warthog will be felt immediately and painfully.

That uncertainty is what makes this story so compelling. The A-10 is not just a tough airplane. It is a living argument about what we think the future of war looks like, and a reminder that the future has a way of disagreeing with our predictions.

Frequently Asked Questions

Why does the Air Force want to retire the A-10?

The Air Force argues that the A-10 is a single-mission platform that consumes resources (pilot training slots, maintenance personnel, basing capacity) that could be redirected to multi-role aircraft like the F-35. The service also contends that the A-10's low-altitude, low-speed profile makes it vulnerable to modern integrated air defense systems fielded by peer adversaries like China and Russia. From an institutional perspective, the Air Force prioritizes air superiority and power projection capabilities over dedicated close air support.

When was the A-10 Warthog first built and how many were produced?

The A-10 prototype (YA-10A) first flew on May 10, 1972, built by Fairchild Republic. The aircraft entered operational service with the U.S. Air Force in 1977. A total of 716 A-10s were manufactured between 1972 and 1984. As of the mid-2020s, approximately 280 remain in the active inventory, with the fleet gradually shrinking through planned retirements.

What did the A-10 accomplish in the Gulf War?

During Operation Desert Storm in 1991, A-10s flew approximately 8,100 combat sorties. According to the Gulf War Air Power Survey, they destroyed more than 900 Iraqi tanks, over 2,000 military vehicles, and roughly 1,200 artillery pieces. Only five A-10s were lost in combat, a remarkably low attrition rate given the intensity of ground fire and the number of low-altitude missions flown. The Gulf War performance silenced the first major push for A-10 retirement and created a generation of ground combat advocates for the aircraft.

Can the F-35 replace the A-10 for close air support?

The F-35 can deliver precision-guided munitions effectively and carries advanced sensors that enable target identification from higher altitudes. However, it cannot match the A-10's loiter time over a battlefield, its ability to absorb battle damage, its low operating cost (approximately $6,000 per flight hour versus $35,000 for the F-35), or the cannon-based capabilities that allow rapid response in fluid, danger-close situations. The F-35 can perform close air support, but whether it can replicate the full range of what the A-10 provides remains an open and contested question.

When will the A-10 finally be retired?

The Air Force plans to fully retire the A-10 fleet by approximately 2029 to 2030, though the timeline has shifted multiple times over the past decade. As of 2025, the fleet is being drawn down incrementally, with squadrons being deactivated in stages. Congress has gradually relaxed its earlier prohibitions on A-10 retirement, partly due to the aging airframe and partly due to the strategic shift toward preparing for potential conflict with peer adversaries.

How many times has Congress blocked A-10 retirement?

Congress has intervened to prevent or limit A-10 retirements on multiple occasions since the early 2010s. The most notable instances were in 2014 and 2015, when lawmakers inserted specific language into the National Defense Authorization Act prohibiting the Air Force from reducing the A-10 fleet below a minimum number. These interventions were driven by testimony from ground combat veterans and active-duty officers who argued that no other platform provided equivalent close air support capability. Congressional resistance has gradually softened in the mid-2020s as the strategic focus has shifted toward great power competition.

Share this article

Share:

Recommended

Ace of The Skies: Can You Identify These Military Aircraft Throughout The Years?
Test Yourself

Ace of The Skies: Can You Identify These Military Aircraft Throughout The Years?

Can you identify these aircraft?

Take the Quiz

On This Day in Military History

March 6

The Fall of the Alamo (1836)

After a 13-day siege, Mexican President-General Antonio López de Santa Anna ordered a pre-dawn assault on the Alamo mission in San Antonio, Texas. All of the roughly 200 Texan and Tejano defenders were killed, including William Barret Travis, Jim Bowie, and Davy Crockett. Santa Anna's order of no quarter transformed the Alamo from a military defeat into a rallying cry — "Remember the Alamo!" — that fueled the Texan victory at San Jacinto six weeks later.

1862Battle of Pea Ridge Begins

1945U.S. 3rd Armored Division Enters Cologne

1944First Major American Daylight Bombing Raid on Berlin

See all 10 events on March 6

Get Military News & History in Your Inbox

Join thousands of readers receiving our weekly digest of military technology, history, and analysis.

Test Your Knowledge