An U.S. Air Force A-10 Thunderbolt II flies over Southwest Asia in support of Operation Inherent Resolve, Oct. 29, 2015.

The A-10 Thunderbolt II, commonly referred to as the Warthog or grunt, is beloved by US troops.

The grunt is the US Air Force’s primary low-altitude close air support aircraft and maneuvers very well at low air speeds and altitudes.

But it’s perhaps best known for its 30mm gatling gun mounted on the nose cone, which fires 3,900 round per minute and makes a loud “buuuuurp” when fired.

Speculation about the Warthog’s fate has abounded for years until Congress allocated over $100 million for upgrades last summer, meaning it will remain in service for years to come.

Here’s what itthe legendary fighter can do:

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The A-10 Thunderbolt II first entered service in March 1976, and is the predecessor to the P-47 Thunderbolt — but it didn’t see action until the Gulf War.

The A-10 was also developed by Fairchild Republic Co., which is now owned by Northrop Grumman, one of the largest defense contractors and political donors in the US.

Source: Defense Department

The original design revolved around the GAU-8 Avenger 30mm gatling gun, which fires 3,900 armor-piercing depleted uranium and high explosive incendiary rounds per minute.

Source: Defense Department

This video shows what the gatling gun can do — now wait for the “buuuuurp.”

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