carl gustaf rounds

Carl Gustaf Rounds - At the 2014 Ground Combat Demonstration, when talking about the new airframe, Saab announced that it has 2,500 tungsten balls with a diameter of 2.5 mm. At the event, the new high-explosive air blaster had no name and was compared to the HE 441D, which carried 800 5.5 mm diameter steel balls. The new round, known as the HE 448, has since evolved and was unveiled in its final configuration at an event in early May.

Speaking at this year's demonstration, Saab experts said the number of spheres has been increased to 4,000, while maintaining the same 2.5 mm diameter. It should be noted that the new ammunition is lighter, 2.7 kg vs. 3.2 kg, HE 441D. By reducing the overall size and weight of the fragments, the lethality of the round increased; the fragments are smaller, lighter and harder, the hardness of tungsten is about 10 times that of steel, being lighter, their speed is much higher and the denser they are, ie the number of fragments per unit area, the radius of the die. According to Saab, the final effect of the HE 448, rated at 12 meters, is "significantly higher".

Carl Gustaf Rounds

The type of target under consideration is the same, combat weapons have an anti-pollution role, in the absence of open weapons and body armor, when the air burst mode is selected, and soft skin anti-vehicle fuzes are used. Being lighter, the HE 448 has increased range and can reach 1,500 meters, 1,300 meters against point targets and 1,250 meters against area targets.

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The HE 448 was used intensively during the two-day event. A triple volley was used to neutralize an infantryman after his combat vehicle was destroyed by thermal shock at the Swedish Army's Military Operations Center in Kvarn. The next day, the first HE 448 firing session took place at the Bofors range in Karlskoga against the old Swedish Army PBV 301, which was fired in the late 1960s, under the influence of which the cartridge was fired. mode to show penetrability. Session 2 was dedicated to the use of structural/leg combat.

Here the HE 448 was used in air blast mode in two different settings. The former exploded inside the container, a direct comparison with the HE 441D is possible as the latter exploded in a similar explosion in a nearby container. The results confirmed that the new round, although lighter, with smaller fragments, has a higher terminal effect.

The next target was a metal plate placed horizontally on top of a wooden structure, which was lifted from above by two pairs of HE 448s and detonated in air burst mode; later, walking under the metal plate, one could see the density of the areas that penetrated the target. The last HE 448 was fired in strike mode at a suburban building, demonstrating its ability to penetrate a brick wall. All shots were fired using a Carl-Gustaf M4 equipped with an FCD 558 scope, the shooter receives the round chamber type and its propellant temperature in real time while entering the fuze with the desired mode, effect or burst. According to the submitted article, the Carl-Gustaf M4 weapon system is equipped with a communication device that uses a new protocol called Firebolt.

In the future, this communication protocol may be included in new versions of the current round. Since previous versions of the Saab CS (Limited Range) allowed it to take advantage of buildings and enclosed spaces, Firebolt-enabled rounds can do the same. This allows you to increase accuracy and reduce the possibility of errors, because the round automatically sets the correct ballistic table and also reduces the time to prepare the weapon for fire. Company officials declined to comment when asked about a timeline for such a development.

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Stage 3 of Karlskoga's technical shooting session was called "Look to the Future" and featured high penetration shooting. It was a "suspended shot" because the charge was placed on a tripod against the target and was not fired from a static launcher. The target was a three-story brick wall, and the new HP facility was used to open a hole the diameter of a caliber in the wall to allow the main charge to penetrate the building before detonation. According to Saab, this new charge was developed in the company's research and development using a novel process that allows to shorten the development time, add previously unused elements and create a very short cycle time to achieve the required level of performance. Saab plans to integrate this new front-end design into the current design's anti-roll bars, which will improve its ability against thick walls. Another experimental setup was also tested, in this case the High Penetration Thermal Head. According to the Saab expert, the penetration effect and the rear armor effect compete at the beginning of the battle, so the end result is always a compromise between the two. This warhead was also tested in a suspended firing mode aimed at a container protected by a 400 mm plate form gun, which produced a significant impact on the container after passing through the steel plate, confirming "very much", according to company officials. a good compromise.” Although there is no explanation for the short-term acceptance of such a new charge, once optimized it could be a product that further improves the anti-armor power of the Carl-Gustaf.

With the new Firebolt protocol and new warheads coming into service, the Carl-Gustaf M4 may get a new lease of life. Let's not forget the GMM (Hypepedial Multi-Functional Munition), which Saab called the ULM (Ultra Light Missile) in 2014. In 2017, Saab began working with Raytheon Missiles and Defense on three years of US government rapid innovation funding, culminating in a live-fire demonstration in November 2020. According to Saab officials, the team is waiting for customers with the GMM TRL 7 to begin the full engineering and production development phase with them.

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