“SDB” Class Aerial Bomb - GBU-39

Small-diameter bombs began to be developed in the 90-ies to provide supersonic aircraft with high-precision bombs with the possibility of dumping them from the internal bomb bay. The works were carried out within the framework of the MMTD program and included the development of technologies:
- smart hold of the target;
- Fusible electronic programmable fuse;
- high-energy explosives;
- counteracting the killing of singal;
- optimal control;
- smart autopilot;
- modern GPS / INS;

Under this program, the work was carried out to provide the F-22 with the latest weapons, and as a result, the aircraft were able to provide standard armament to 8-type SDB bombs. In 2005, such aerial bombs were already in service with the Air Force and received their first combat use in Iraq in 2006. According to the plans of the United States Air Force, 24 plans to acquire thousands of SDB class bombs of various calibers. They will be used on supersonic airplanes, and more than half of the bombs will become the basic armaments for hitting stationary ground objects, the latest modifications can already be used for mobile targets.

End of 2007. The American aircraft manufacturer Boeing announced the successful development of the HIFEX program for the implementation of active airflow control technologies for safe discharge aviation ammunition from internal armory carrier compartments at high speeds (M> 1). The practical possibility of safely dropping the Mk-82 JDAM aircraft munition from the V-1 carrier aircraft at high flight speed (M = 2) was demonstrated

In the middle of 2008, for the first time, a GBU-39 aerial bomb was supersonic from the 411 squadron of the United States Air Forces for the first time at a California air base. The tests were successful and showed that it is possible to safely drop air bombs at high speeds from the internal bomb bay. This made it possible to consider the entire program for the development of supersonic aircraft weapons of a new generation successful.

The GBU-39 aerial bomb belongs to the Small Diameter Bomb class - a small diameter bomb (caliber). Caliber GBU-39 SDB - 113 kilogram. Purpose - high-precision destruction of ground objects from long distances, to prevent the carrier from being hit by enemy air defense systems. The small diameter and small form factor made it possible to place the GBU-39 SDB not only on hangers, but also in the internal weapons compartment. This allowed to reduce the overall visibility of the aircraft and increase the speed and maneuverability characteristics.

The program for the integration of aviation guided munitions into the armament of the F-22A aircraft was quite extensive, within its framework, ground tests were carried out to determine and reduce the vibration characteristics of an aerial bomb, and tests of dropping an aerial munition at low speeds (M = 0.8-1). 8 GBU-39 SDB test discharges were carried out at M <1. The F-22A Raptor can carry up to 8 Small Diameter Bomb munitions in its internal weapon compartment. After the successful integration of the GBU-39 SDB, regular combat tests are underway to use new modifications of small-diameter guided aerial bombs. The start of the program for the combat use of supersonic bombs "Revolutionary Approach To Time-critical Long Range Strike" - ground tests on rail supersonic bogies at speeds of about 600 m / s at the "Holloman" test site.

The GBU-39 SDB is capable of hitting objects in shelter, and provides greater accuracy in comparison with aerial bombs like JDAM. Equipment bombs:
- GPS receiver from Rockwell Collins;
- inertial unit from Honeywell;
-Electronically programmable fuse with the possibility of detonation of the munition in the air, in contact with the object and setting the delay of detonation;
-an anti-jam anti-jam module from Harris;
- tail feather drives «HR Textron»;
- folding wings "MBDA Diamondback";
- TAM Garland warhead;
- interface "Mil-Std-1760";
-button "Sargent Fletcher" - the ejector from "Boeing".

Optimal control is a unique technology that allows you to align a controlled bombs at the point of impact on the target with a velocity vector, which significantly increases penetration. All kinetic energy is used to control the ammunition to achieve the destruction of the selected object.

The aerodynamic wings used provide a range of use of a bomb in a radius of more than 100 kilometers. The blast radius of a 285 lb GBU-39 SDB is 26 ft vs 82 ft 2000 lb JDAM. Contractors claim that aerial bombs can penetrate 5-foot reinforced concrete, and that they will compete with the BLU-109 / B aerial bomb. The most effective such ammunition will be with the impact of strikes within the city, with the support of ground troops from the air on airfields, structures, armored vehicles, firing points, means of the MLRS and air defense. They will be less effective in use against deep bunkers, structures, large infrastructures and buildings, industrial enterprises, bridges and trench systems, car parks and enemy manpower.

Key Features:
- diameter 7.5 inch;
- length 1.8 meter;
- width 19 centimeters;
- weight 285 pounds;
- application range over 100 kilometers;
- penetration - 5-6 feet of reinforced concrete floor;
- BB weight - 17 kilogram;

Aircraft carriers:
- F-15E;
- F-16;
- F-35 II;
- A-10 II;
- F-117;
- B-1;
- B-2;
- B-52.

Information sources:
http://www.ausairpower.net/APA-SDB.html#mozTocId230255
http://www.youtube.com/watch?v=b_qlR1amSX0&feature=youtu.be
http://ru.wikipedia.org/wiki/GBU-39

Comments

[Shuhrat turani]

well done amers ... but there can be one small problem ... The cost of armaments and ammunition is increasing .... maybe it really happens that the United States may go bankrupt in some kind of military conflict with some poor country ... Unless of course special forces will not help ...

[sergey261180]

So they do not attack the poor.

[755962]

A promising little thing ...... taking into account heterogeneous GOS is also universal. Compactness +

[Tirpitz]

As long as the US prints money, it will not go bankrupt. As regards the assortment of guided munitions, they are on top.

[datur]

Tirpitzyou're right about that it’s good to be generous when you have a world-wide printing press in the yard !!!

[snek]

Quote: datur

when you have a world printing press in the yard !!!

If everything was so simple, then such a thing as an American external debt would not exist.

[USNik]

when you have a world printing press in the yard !!!

If everything was so simple, then such a thing as an American external debt would not exist.

Existed and exists, is such a concept as sterilization of excess money supply (ie, a heck of unsecured dollars) familiar? If not, then I advise you to read / listen to Nikolai Starikov's book "The Crisis, How It Is Done", where the scheme of "the worldwide scammer and pulling the dollar on the globe" is easily and simply written.
And still, it’s very interesting to know the price of this small-diameter bomb, with such a number of bells and whistles, its price can exceed the cost of an air-to-ground missile.
(PS: From the list of carrier aircraft, you can remove the F-117 and add the F-22 :)).

[Dust]

The thing is extremely curious in its properties, but it looks like the price is knocking down her feet ...

[DEMENTIY]

Mal bug, yes smelly.
In terms of guided weapons, amers certainly make us.

[Professor]

And you compare the prices of this ammunition and say the aircraft in the hangar, which, as recent conflicts have shown, it is almost guaranteed to be amazing.

[beard999]

Quote: professor

aircraft in the hangar which, as shown by recent conflicts, it is almost guaranteed to hit

Can I have more details about this? Call a couple of "recent conflicts" in which the GBU-39 / GBU-40 "almost guaranteed to hit the aircraft in the hangar." If possible with confirmation links. There are certainly reports that SDBs are being used - by the Americans in October 2006 in Iraq and by you in 2008 during the “Mivtza Oferet Yetzuka” (among the Arabs - “The Gaza Massacre”). But just not there, not there were no planes in the hangars ...
In addition, do you happen to know the thickness of the ceilings of such hangars? I’ve never seen any kind of officialdom in this regard, but on forums in Runet, authors who appear to be pilots claimed that the thickness of reinforced concrete in such shelters (Soviet times) was from 1,2 to 1,5 meters, plus backfill, plus a kind of "internal reinforcement" of the ceiling of the hangar. As you know, according to the developer and manufacturer of GBU-39, this munition has a maximum drooping ability of 914 mm (3 ft) reinforced concrete http://www.boeing.com/defense-space/missiles/sdb/index.html. At the same time, I, for example, met information from the Russian military that today, they are no longer satisfied with the penetrating capabilities of the 75-kg NAR S-13T (in service since 1984), which, according to open sources, is 6 meters medium density plus 1000 mm high-quality reinforced concrete. As you know, one of the main objectives of this munition is precisely the defeat of such reinforced concrete shelters ... The developer of this NAR, IFP, during modernization, is proposed to increase the penetrating capabilities of the munition. Can you comment on this, given the penetrating capabilities of GBU-39?

[Zerkalo]

By the way, I read in a magazine, it seems like an aerospace review for 2009 or 10, so there the serial production price is about $ 57000. So I would not say that the shell is expensive, and how many of them get inside - you see in the pictures.

[uizik]

This at the test sites pass smoothly. In real conditions, when counteracting protective equipment, the "accuracy" of high-precision weapons approaches zero.

[Zerkalo]

By the way, there is an expert opinion that this video with punching a RCB is an incineration. Many experts, and even sturdy ones, say that there is not enough mass to overcome such a barrier. Now, if she had a simple powder accelerator - then yes, and so ... Yes, and accuracy is lame 3-5 meters (judging because the guidance system is inertial-satellite) for such a small warhead is already critical.

But the phrase about the possibility of a supersonic reset from the internal bomb bay is interesting and quite useful.

[ak_12]

"The practical possibility of safely dropping the Mk-82 JDAM aircraft munition from the B-1 carrier aircraft at high flight speed (M = 2) was demonstrated."

The maximum flight speed of the B-1B bomber is generally M = 1,25, so the bomb was "dropped" from the rocket sled. :)

http://angiepalmer.files.wordpress.com/2007/12/hifex-test-photo.jpg

[Korvin]

But hto told you that the bomb was designed to destroy aircraft in the hangar? A specially limited radius of destruction of kakbe hinting at a clear anti-terrorist orientation, the destruction of specific individuals in specific apartments in a densely populated area where the thickness of the ceilings is less.

[Doctor salvatore]

Hey everybody. http://cialisachatlakhf.unblog.fr - Cialis Pas Cher En Ligne

[Anthonydisy]

Your pictures look fantastic!!!

my website - http://onlinesmpt200.com

[Vadym_o]

Quote: uizik

This at the test sites pass smoothly. In real conditions, when counteracting protective equipment, the "accuracy" of high-precision weapons approaches zero.

Oh come on! Did someone tell you this or did you think of it yourself? :)
“Seismic vibrations with a magnitude of 2,6 points is the same post effect that the IDF night raid took. The epicenter of this artificial earthquake was the southeast of Hama, where the Iranian missile base was located, and underground. And judging by the shock that reached right up to the Israel’s coastline, the Israelis didn’t miss. In this case, it’s not about cruise missiles, but about the average unfamiliar ammunition - GBU-39. "

[Vadym_o]

Quote: Zerkalo

By the way, I read in a magazine, it seems like an aerospace review for 2009 or 10, so there the serial production price is about $ 57000. .

For the US Air Force in 2011, 2785 bombs were purchased for more than $ 100 million, in 2012 - 100 bombs for $ 20 million, in 2013 - 144 for $ 42 million

[Vadym_o]

Quote: Shuhrat Turani

well done Americans ... but there can be one small problem ... The cost of armaments and ammunition is increasing .... maybe it really happens that the United States may go bankrupt in some kind of military conflict with some poor country ... Unless of course special forces will not help ...

For the US Air Force in 2011, 2785 bombs were purchased for more than $ 100 million, = 36000 bucks

[Vadym_o]

AND? what do you think bring down?