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The M829 is an American armor-piercing fin-stabilized discarding sabot kinetic energy penetrator tank round.Modeling was done at the Ballistic Research Laboratory at Aberdeen Proving Ground, [1] which was incorporated into the Army Research Laboratory in 1992.
Armour piercing discarding sabot munitions were developed to increase penetrating performance of anti-tank projectiles by generating higher impact velocity.A larger projectile would require a completely new weapon system, but increasing velocity faced the limitation that steel armour-piercing (AP) projectiles shattered at velocities above about 850 m/s when uncapped.
The discarding sabot petals travel at such a high muzzle velocity that, on separation, they may continue for many hundreds of feet at speeds that can be lethal to troops and damaging to light vehicles. For this reason, tank gunners have to be aware of danger to nearby troops. The saboted flechette was the counterpart of APFSDS in rifle ammunition.
the new round uses a new sabot design, and a Tungsten Alloy penetrator of increased length compared to prior generation Russian APFSDS ammunition. Used on 2A46M-4/5 with new autoloader. Cartridge dimension: 735 mm [3] Penetrator dimension: 640 mm 28-29: 1 L/D; Round weight: ? kg; Projectile weight (including sabot): 8.4kg; Penetrator weight:
A sabot (UK: / s æ ˈ b oʊ, ˈ s æ b oʊ /, US: / ˈ s eɪ b oʊ /) is a supportive device used in firearm/artillery ammunitions to fit/patch around a projectile, such as a bullet/slug or a flechette-like projectile (such as a kinetic energy penetrator), and keep it aligned in the center of the barrel when fired.
120×570mm NATO tank ammunition (4.7 inch), also known as 120×570mmR, is a common, NATO-standard (STANAG 4385), tank gun semi-combustible cartridge used by 120mm smoothbore guns, superseding the earlier 105×617mmR cartridge used in NATO-standard rifled tank guns.
A destroyed M1A1, hit in the rear grill by a Hellfire missile and penetrated by a sabot tank round from the left side to right (see exit hole) in Operation Desert Storm, 1991 Iraq's T-72s, like most Soviet export designs, lacked night-vision systems and then-modern rangefinders , though they did have some night-fighting tanks with older active ...
French anti-tank round with its sabot. A kinetic energy penetrator (KEP), also known as long-rod penetrator (LRP), is a type of ammunition designed to penetrate vehicle armour using a flechette-like, high-sectional density projectile.