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At a glance
Measured figures
Length
Single source70.8 in (1.80 m)[source]
Approx
Single sourceConfiguration
| Specification | GBU-39 Small Diameter Bomb | LS PGB |
|---|---|---|
| Speed | — | Free-fall[source] |
| Type | Glide bomb[source] | Precision-guided munition , glide bomb[source] |
| Place of origin | United States[source] | China[source] |
| In service | 2006–present[source] | 2006–present[source] |
| Used by |
Approx. 3.5 m (11 ft)[source]
packed
Single sourcewings extended
Single source5 ft 3.3 in (1.61 m) (wings extended) 7.5 in (190 mm) packed[source]
Mass
Single source285 lb (129 kg)[source]
Operational; All SDB I variants over when air-dropped
Single sourceOperational; when launched as a part of the GLSDB
Single sourceAll SDB I variants over 60 nmi (69 mi; 111 km) when air-dropped, 150 km (93 mi; 81 nmi) when launched as a part of the GLSDB ,[source]
at 11 km (36,000 ft)
Single sourceat 8 km (26,000 ft)
Single sourceAFX 1209 MBX ("multiphase blast explosive"), composite case Laser SDB (GBU-39B/B)
Single sourceAFX 757 enhanced blast insensitive explosive, penetrating steel case
Single sourceAll SDB I variants total SDB I (GBU-39/B)
Single sourceExplosive fill AFX 757 Insensitive munition certified PBX Penetration: greater than 3 ft (0.91 m) of steel reinforced concrete SDB FLM (GBU-39A/B)
Single sourceAll SDB I variants 206 lb (93 kg) total SDB I (GBU-39/B) Explosive fill: 36 lb (16 kg) AFX 757 Insensitive munition certified PBX Penetration: greater than 3 ft (0.91 m) of steel reinforced concrete SDB FLM (GBU-39A/B) 137 lb (62 kg) AFX 1209 MBX ("multiphase blast explosive"), composite case Laser SDB (GBU-39B/B) 36 lb (16 kg) AFX 757 enhanced blast insensitive explosive, penetrating steel case[source]
Bars compare reported quantities only. A larger figure does not make a system better; configurations and test conditions differ.
United States Israel Italy Netherlands Ukraine Saudi Arabia Australia[source]
See § Operators[source] |
| Wars | War in Afghanistan , Iraq War , Military intervention against ISIL , Syrian Civil War , Russian invasion of Ukraine , Gaza war[source] | — |
|---|
| Manufacturer | Boeing Integrated Defense Systems[source] | Luoyang Optoelectro Technology Development Center[source] |
|---|
| Unit cost | US$40,000 (SDB I, FY 2021)[source] | — |
|---|
| Produced | 2005–present[source] | 2006–present[source] |
|---|
| No. built | 17,000+[source] | — |
|---|
| Variants | GBU-39/B GBU-39A/B GBU-39B/B[source] | — |
|---|
| Warhead | SDB I (GBU-39/B) penetrating blast fragmentation, penetrating steel nosecone SDB FLM (GBU-39A/B) blast ultra-low fragmentation Laser SDB (GBU-39B/B) penetrating blast fragmentation, w/o steel nosecone[source] | Various gravity bombs[source] |
|---|
| Guidance system | SDB I (GBU-39/B) SDB FLM (GBU-39A/B) GPS / INS Laser SDB (GBU-39B/B) GPS / INS with terminal semi-active laser guidance[source] | INS with GNSS / laser guidance /scene matching area correlator[source] |
|---|
| Accuracy | SDB I (GBU-39) 3 ft (1 m) CEP[source] | — |
|---|
| Detonation mechanism | — | Impact or Proximity[source] |
|---|
| Launch platform | — | Aircraft[source] |
|---|
| Guidance | — | GNSS + INS[source] |
|---|
| Reported operators |
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|---|
40 km (22 nmi) at 8 km (26,000 ft) 65 km (35 nmi) at 11 km (36,000 ft)[source]