Meet the GBU-53/B Stormbreaker: The Cool New Player in Precision Strike Tech

Christian Baghai
3 min readMay 4, 2024

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So, let’s talk about the GBU-53/B Stormbreaker. Priced at a cool $200,000 each, this piece of hardware is not just another bomb — it’s a major leap forward in precision strike technology. Formerly known as the Small Diameter Bomb Increment 2 (SDB II), the Stormbreaker is all about giving military folks the upper hand by letting them hit both moving and stationary targets with scary accuracy.

From Concept to Killer Tech

Back in 2010, the Air Force decided it was time for an upgrade from the Boeing-made GBU-39 Small Diameter Bomb. Unlike its predecessor, which relied on GPS to find its way, the Stormbreaker comes packed with a high-tech seeker that uses millimeter wave imaging, infrared, and semi-active laser guidance, not to mention the good old GPS and inertial navigation systems.

This bomb isn’t just smart; it’s also pretty sleek. It measures 69 inches long and 6 to 7 inches in diameter, weighs 204 pounds, and packs a 105-pound warhead. According to Tyler Alt, who manages the SDB II program for the Navy, this gadget was built with the future in mind. It has some serious electronic brains that can handle a variety of combat scenarios and dodge countermeasures like a pro.

What Makes It So Special?

The Stormbreaker seriously ups the game for aircraft, pushing their strike range to up to 69 miles against stationary targets and 46 miles for moving ones. This means less time in danger zones near enemy air defenses. Paul Ferraro, the air power boss at Raytheon, points out that this bomb keeps older fighter jets in the fight by complementing their lack of stealth with its smart tech.

One of the coolest features of the Stormbreaker is its ability to tweak its flight plan on the fly. Thanks to a two-way data link, controllers, either in the air or on the ground, can send new coordinates to the bomb, ensuring it hits the moving target with pinpoint accuracy. Also, its compact size lets an F-15E Strike Eagle carry up to 28 of these bad boys, making it a real game-changer in missions that need a lot of precision firepower.

Already in Action

The Stormbreaker has already made its way into the arsenal of the US Air Force’s Boeing F-15E Strike Eagles and is on track to join just about every fixed-wing strike aircraft in the US military, including the state-of-the-art F-35. After nailing 28 test drops in 2023, it’s clear this bomb is ready for prime time.

How Does It Stack Up?

Comparing it to the older GBU-39B Small Diameter Bomb, which costs about $440,000 each, the Stormbreaker offers more bang for your buck. The GBU-39B, which has been around since 2006, is pretty good at smashing through reinforced concrete and has been fitted onto a bunch of different aircraft.

There’s Even a Ground Version!

And then there’s the Ground-Launched Small Diameter Bomb (GLSDB), a nifty variant that teams up the GBU-39B with an M26 rocket. This allows it to be shot from systems like the M270 MLRS and M142 HIMARS. With a range of 93 miles and the ability to resist electronic jamming, this ground-launched version can really shake things up on the battlefield.

In 2023, the U.S. decided to send some of these GLSDBs to Ukraine, dramatically increasing the range of targets Ukrainian forces can hit, reshaping the strategic situation in the region.

Wrapping Up

All in all, the GBU-53/B Stormbreaker and its family members are showing just how far military strike technology has come. With their advanced targeting tech and versatility, these weapons not only make existing military assets more effective but also ensure forces can tackle modern combat challenges head-on. This kind of innovation keeps our military capabilities sharp and ready for whatever comes next.

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Christian Baghai
Christian Baghai

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