How Much Does a Glide Bomb Cost?

Published on July 16, 2026 | Written by Alec Pow
This article was researched using 14 sources. See our methodology and corrections policy.

A glide bomb is an air-launched guided weapon that travels toward its target without a sustaining engine. Public contract data points to about $128,571 per requested GBU-39/B when a 2025 Polish support package is divided by its 1,400 live bombs, and roughly $213,500 to $229,700 per GBU-53/B StormBreaker when recent production awards are divided by reported quantities.

Those figures are not retail prices. The Polish number assigns an entire proposed export package to the live weapons. The StormBreaker figures may still contain containers, trainers, test vehicles, spares, and foreign-sale work. A narrow factory figure may be lower than the published contract allocation.

Procurement is measured per round, production lot, or national package. Model, seeker technology, order size, aircraft integration, training equipment, logistics, and contract scope decide which number applies.

A defensible public estimate is about $125,000 to $230,000 per weapon, with full support packages capable of producing a higher allocation.

How Much Does a Glide Bomb Cost?

Jump to sections

• Poland GBU-39/B package ceiling divided by 1,400 live bombs: about $128,571 (at $30 per hour, earning that amount would take about 2.1 years of full-time work, before taxes) each
• StormBreaker Lot 10 award divided by 1,500 weapons: no more than about $229,746 each
• StormBreaker Lot 9 award divided by a reported 1,500 weapons: about $213,518 each
• StormBreaker Lot 11 initial award: $282.3 million for rounds and containers
• Lot 11 value after added rounds, test vehicles, and trainers: $366.5 million

Glide bomb costs by model

The GBU-39/B Small Diameter Bomb I and the GBU-53/B StormBreaker occupy different pricing bands. A clean current GBU-39/B factory price is not published on an open government order page. The strongest recent public benchmark is Poland’s May 2025 proposed purchase. The Polish sale notification lists 1,400 live weapons, four inert practice weapons, and logistics and program support for up to $180 million (about 2.9 thousand years of full-time work at $30 per hour). Dividing the ceiling by the live quantity gives about $128,571, but that is a package allocation.

StormBreaker carries a higher public contract allocation. A 2023 production award of $344,619,301 funded more than 1,500 weapons for U.S. services and foreign customers. Using 1,500 as the divisor produces no more than about $229,746 per weapon. Since the order included trainers and containers, that result cannot be called a bare factory price.

A practical public range is $125,000 to $230,000 per round. The lower end is tied to a GBU-39 export package calculation. The upper end reflects recent StormBreaker production-lot math. Government planners may pay more per delivered weapon when an order also funds training equipment, testing, software, spare parts, and field support.

Worked cost math

The clearest arithmetic comes from StormBreaker Production Lot 10. The Defense Department reported a $344,619,301 (about 5.5 thousand years of full-time work at $30 per hour) modification for all-up rounds, containers, and trainers in its December 2023 contract notice. Independent reporting said the order covered more than 1,500 munitions. Using 1,500 rather than the unspecified higher quantity creates an upper-bound allocation.

The math is $344,619,301 divided by 1,500, or about $229,746 per weapon. The actual allocation would fall slightly below that figure because the quantity exceeded 1,500. The reported production quantity also covered U.S. Air Force, U.S. Navy, Norwegian, German, Italian, and Finnish requirements.

The result still includes nonweapon items. Containers protect and move the munitions. Trainers support loading and handling practice. Contract management and foreign-sale work may sit inside the award. The calculation is useful for comparing production lots, but it should be labeled as a contract allocation rather than a precise manufacturing price.

What this is in plain terms

A glide bomb uses wings or lift surfaces to travel beyond the point where an ordinary gravity bomb would fall. It is released from an aircraft and has no sustaining propulsion system, which separates it from a cruise missile. Guidance can combine satellite navigation, inertial navigation, radar, infrared sensing, laser designation, and data links.

The GBU-39/B is a compact 250-pound-class weapon aimed mainly at fixed targets. The Air Force weapon description identifies GPS guidance and a standoff range beyond 40 nautical miles. StormBreaker is built for fixed and moving targets under poor visibility. Both let aircraft carry several smaller weapons in place of fewer heavy bombs. The round is only one part of the capability. Aircraft software, racks, mission planning, storage, training, and maintenance support are separate parts of the procurement system.

The GBU-39 price trail

Older GBU-39 figures are poor guides to present spending because production volume, contract year, inflation, support scope, and upgrades change the comparison. The weapon entered operational service in 2006, and later orders benefited from an established production line. A 2025 foreign-sale notification provides fresher evidence, but it measures a broader package than a domestic production order.

Poland requested 1,400 GBU-39/B live rounds, four GBU-39 inert practice bombs, and related logistics and program support. The notified ceiling was $180 million. Assigning the full ceiling to the 1,400 live rounds gives $180 million divided by 1,400, or about $128,571 per live round. The four practice weapons, technical help, logistics, and program work receive no separate allocation in that simple division, so the result sits above an unknown munition-only figure.

A sale notification is also not a paid invoice. Quantities may change, negotiations may reduce the value, and some approved items may never be ordered. The ceiling tells Congress the maximum estimated scope at the notification stage. It does not disclose Boeing’s production margin, government-furnished equipment, negotiated delivery schedule, or the amount assigned to each support line.

Readers comparing the GBU-39 with a heavy bunker-busting weapon should keep warhead class and mission apart. Smaller diameter does not mean the buyer is paying only for explosive weight. Guidance, folding wings, carriage density, accuracy, storage, and aircraft compatibility account for much of the procurement value.

StormBreaker has a higher contract allocation

StormBreaker adds a tri-mode seeker designed to track fixed or moving targets in daylight, darkness, smoke, fog, and rain. Raytheon says the seeker shares information among millimeter-wave radar, imaging infrared, and semi-active laser modes on its StormBreaker technical page. The weapon can also receive updated target information during flight.

That sensor set adds electronics, calibration, software, environmental testing, and production inspection beyond a GPS-guided fixed-target weapon. The price gap is not explained by warhead size alone. A seeker that identifies and follows a moving vehicle creates a different engineering and test burden from a weapon flying toward stored coordinates.

Production history supports a contract allocation near the low $200,000s. Lot 9 carried a $320,276,785 award for assembled weapons and containers. A reported 1,500-round quantity would produce about $213,518 per round, based on the Lot 9 award notice. Lot 10 produces an upper-bound allocation near $229,746. The difference may reflect quantities, trainers, export shares, production timing, and contract structure rather than a simple increase in the price of every bomb.

Package items

A weapons contract may buy a usable military capability rather than loose rounds. Live munitions form the largest visible quantity, but the package can contain inert practice units, guided test vehicles, weapon-load trainers, storage containers, replacement components, engineering support, software changes, technical publications, transport, and instruction for aircrews and maintainers.

StormBreaker Lot 11 shows how the scope can expand. The initial December 2024 award was $282,343,991 for all-up rounds and containers, according to the Lot 11 contract record. A January 2025 modification added rounds with containers, guided test vehicles, and weapon-load crew trainers. That change raised the cumulative value to $366,510,523 in the later award update.

Hidden program spending can include racks, software, certification flights, test rounds, training devices, containers, spares, technical data, transport, and contractor support. These lines can add tens or hundreds of millions of dollars to a national acquisition without changing the number of live rounds by the same proportion.

Test vehicles deserve separate treatment. They may contain expensive guidance hardware and instrumentation, yet they do not enter operational inventory as ordinary live weapons. The Defense Department issued a separate $21,326,976 Lot 10B modification for guided test vehicles and spares in September 2024. Mixing that award into a live-round count would inflate the apparent unit figure.

Aircraft integration

Buying the bombs does not make every aircraft able to release them. Integration work can include wiring, carriage racks, mission-computer software, weapon interfaces, loading procedures, separation tests, flight trials, release envelopes, technical manuals, simulator changes, and crew qualification. Those expenses may be funded through contracts that never appear in a simple production-lot division.

The GBU-39/B entered service on the F-15E and has since reached other platforms. StormBreaker has required separate work across Air Force and Navy aircraft. Raytheon reported that the U.S. Navy fielded it on the F/A-18E/F Super Hornet after testing and approval, as described in the Super Hornet fielding notice. Aircraft purchase price belongs outside the bomb figure, but weapon integration belongs inside the cost of creating an operational capability.

Three cases show why published answers differ. Poland’s GBU-39 proposal yields about $128,571 per requested live bomb after assigning a full export ceiling to 1,400 rounds. StormBreaker Lot 9 yields about $213,518 per round when its award is divided by 1,500 reported weapons. Lot 10 reaches no more than about $229,746 per weapon using the same method. The rise from the Poland allocation to the Lot 10 allocation is about $101,175 per weapon, but the models, customers, seekers, quantities, and package contents differ.

A fighter program can dwarf the munitions line. A reader comparing a weapon package with an F/A-18 acquisition should keep the aircraft, integration program, and expendable rounds in separate columns.

What we checked

• Checked GBU-39 guidance, weight class, and range on the 2026 Air Force report.
• Confirmed the Poland quantity and $180 million ceiling in the sale package record.
• Cross-referenced Lot 10 scope and delivery timing through the manufacturer award statement.
• Verified separate engineering spending in the baseline change contract.

Article Highlights

• Public evidence supports a rough band of $125,000 to $230,000 per glide bomb.
• The GBU-39/B Poland figure is a package allocation, not a disclosed factory price.
• Recent StormBreaker production allocations sit near the low $200,000s.
• Containers, trainers, test vehicles, spares, and support can raise a contract sharply.
• Aircraft integration is separate from both the aircraft purchase and the round estimate.
• DSCA ceilings should not be reported as completed invoices.

Answers to Common Questions

Is a glide bomb cheaper than a cruise missile?

It can be, since it has no sustaining engine and is usually smaller. Mission, seeker, range, order size, and support scope still control the comparison.

How much does a GBU-39 cost?

A 2025 Polish package produces an allocation near $128,571 per requested live bomb when its full ceiling is divided by 1,400 rounds. The munition-only amount was not disclosed.

How much does a StormBreaker cost?

Recent contract math supports roughly $213,500 to $229,700 per weapon, with containers, trainers, or other items still included in the awards.

Why are export-package figures higher?

They may include training, test equipment, logistics, spares, technical help, transport, and program support in addition to live weapons.