Tenk M-84

[tihi]

Kada je u pitanju potkalibarna municija, imam par pitanja, onako laickih. Kada god razgovaram sa kolegama iz OMJ, svi znaju da ima potkalibarnih granata ali niko nikada nije ispalio nijednu, kazu kumulativna je sasvim dovoljna za unistavanje drugog tenka ( sto je samo po sebi glupost). Niko ne zna dali (i koliko) se ostecuje top pri ispaljenu potkalibarnih granata, i koji je vek trajanja cevi, tj koliko bi potkalibarnih granata mogla da ispali pre potrebe da se sama cev zameni, i kada se to poredi sa Rhiletall L/44 topom, i njegovi vekom trajanja? Znam da su iracke T72 imali problem da probiju americke Abramse sa kumulativnim granatama cak i sa jako malih rastojanja (50-ak metara), dali su uopste imali potkalibarnu municiju?

[MOTORISTA]

Kakve veze ima daljina gađanja sa probojnošću kumulativne granate?

[tihi]

Kakve veze ima daljina gađanja sa probojnošću kumulativne granate?

 Apsolutno nikakvih. Ali da su imali neki potkalibarni projektil imalo bi, a oni su koristili kumulativne...Zato sam naveo daljinu.

[MOTORISTA]

Sa 50 metara bi ga proburazila i potkalibarna za top D-10.

[kumbor]

A stvarno, kakva je konstrukcija cevi topa 2A46? Ima li unutrašnju košuljicu (liner) koja se se menja?

[MOTORISTA]

Malo o municiji.

APFSDS-T

Armour-piercing fin-stabilized discarding sabot tracer or APFSDS-T rounds. Typically used against other modern tanks.

3VBM3/3BM9/10

Entered service in 1962. The projectile is Maraging steel.
Country of origin: Soviet Union
Projectile dimension: 410 mm 10: 1 L/d
Projectile weight (including sabot): 5.67 kg
Projectile weight: 3.6 kg
Muzzle velocity: 1800 m/s
Muzzle energy: 5.8 MJ
Penetration: 245 mm at 0° at 2000 m, 80 mm at 60° at 2000 m, (energy at 2000 m is 4.2 MJ)

3VBM6/3BM12/13

Entered service (estimated) in 1968. Essentially the same as the 3BM9 projectile with a tungsten carbide plug.
Country of origin: Soviet Union
Projectile dimension: 410 mm 10: 1 L/d
Projectile weight (including sabot): 5.67 kg
Projectile weight: 3.6 kg
Muzzle velocity: 1800 m/s
Muzzle energy: 5.8 MJ
Penetration: 280 mm at 0° at 2000 m, 110 mm at 60° at 2000 m, (energy at 2000 m is 4.2 MJ)

3VBM7/3BM15/16
 
Entered service (estimated 1972). A slightly longer 3BM12 projectile.
Country of origin: Soviet Union
Projectile dimension: 435 mm 12: 1 L/d
Projectile weight (including sabot): 5.9 kg
Projectile weight: 3.9 kg including 2.9 kg and 0.27 kg tungsten carbide plug
Muzzle velocity: 1780 m/s
Muzzle energy: 6.2 MJ
Certified Penetration: 310 mm at 0° at 2000 m, 120 mm at 60° at 2000 m,
Interestingly, the 'predicted penetration' is 150mm at 60° at 2000 m,

3VBM8/3BM17/18

Entered service (estimated 1972). An export version of the 3BM-15 without the tungsten carbide plug. Hence, it is an all-steel penetrator with inferior performance.
Country of origin: Soviet Union
Projectile dimension: 450 mm 12: 1 L/d
Projectile weight (including sabot): 5.9 kg
Projectile weight: 3.9 kg
Muzzle velocity: 1760 m/s
Muzzle energy: 6.2 MJ
Certified Penetration: 290 mm at 0° at 2000 m, 110 mm at 60° at 2000 m,

3VBM9/3BM22/23

Entered service 1976. Tungsten carbide penetrator core sheathed in steel.
Country of origin: Soviet Union
Projectile dimension: 400 mm 11: 1 L/d
Projectile weight (including sabot): 6.55 kg
Projectile weight: 4.485 kg
Muzzle velocity: 1760 m/s
Muzzle energy: 7.0 MJ
Penetration: 380 mm at 0° at 2000 m, 170 mm at 60° at 2000 m,

3VBM10/3BM29/30

Entered service 1982. Depleted Uranium-nickel-iron alloy sheathed in steel.
Country of origin: Soviet Union
Projectile dimension: 450 mm 12: 1 L/d - including 250 mm core.
Projectile weight (including sabot): 6.55 kg
Projectile weight: 4.85 kg
Muzzle velocity: 1700 m/s
Muzzle energy: 7.0 MJ
Penetration: 430 mm at 0° at 2000 m, 210 mm at 60° at 2000 m,

3VBM11/3BM26/27

Entered service 1983. Tungsten-nickel-iron alloy core sheathed in steel.
Country of origin: Soviet Union
Projectile dimension: 395 mm 11: 1 L/d
Projectile weight (including sabot): 7.05 kg
Projectile weight: 4.8 kg
Muzzle velocity: 1720 m/s
Muzzle energy: 7.5 MJ
Penetration: 410 mm at 0° at 2000 m, 200 mm at 60° at 2000 m,

3VBM13/3BM32/33

Entered service in 1985. The projectile is a depleted uranium-nickel-zinc alloy, sheathed in steel.
Country of origin: Soviet Union
Projectile dimension: 380 mm 13: 1 L/d
Projectile weight (including sabot): 7.05 kg
Projectile weight: 4.85 kg
Muzzle velocity: 1700 m/s
Muzzle energy: 7.0 MJ
Penetration 500 mm at 0° at 2000 m, 250 mm at 60° at 2000 m,

3VBM17/3BM42 (3BM44)
 
Entered service in 1986. The projectile is a tungsten alloy core sheathed in steel.
Country of origin: Soviet Union
Projectile dimension: 452 mm 15: 1 L/d
Round weight: 20.4 kg
Projectile weight: 4.85 kg [3]
Projectile weight (including sabot): 7.05 kg
Muzzle velocity: 1700 m/s
Muzzle energy: 7.0 MJ
Penetration: 450 mm at 0° at 2000 m, 220 mm at 60° at 2000 m.

3VBM19/3BM42M (3BM44M "Lekalo")

Entered service in 1994 Utilising an improved penetrator and a new Sabot. Reported to be tungsten alloy.
Country of origin: Russia
Projectile dimension: 570 mm 22: 1 L/d
Round weight: ?
Projectile weight (including sabot): 6.95 kg
Muzzle velocity: 1750 m/s
Muzzle energy: 7.4 MJ (estimated - assuming 4.85 kg projectile)
Penetration: 650 mm at 0° at 2000 m

3VBM??/3BM46 (3BM48 "Svinets")

Entered service in 1991 Utilising a new Sabot. Reported to be Uranium alloy.
Country of origin: Russia
Projectile dimension: 546 mm : 22? L/d
Round weight: 4.85 kg
Projectile weight (including sabot): ?.?? kg
Muzzle velocity: 1700 m/s
Muzzle energy: ?.? MJ
Penetration: 650 mm at 0° at 2000 m, 300 mm at 60° at 2000 m

3VBM??/3BM46 (3BM48 "Свинец-2")

Entered service : Unknown. Utilising a new Sabot. Reported to be tungsten alloy.
Country of origin: Russia
Projectile dimension: ? mm
Round weight: Unknown
Projectile weight (including sabot): ?.?? kg
Muzzle velocity: 1700? m/s
Muzzle energy: ?.? MJ
Penetration: 750?? mm at 0° at 2000?? m

HEAT-FS

High-explosive anti-tank fin stabilised or HEAT-FS rounds. Typically used against lighter or older tanks and Armoured personnel carriers.

3VBK7/3BK12

Entered service 1962.
Country of origin: Soviet Union
Projectile dimension: 680 mm
Projectile weight: 19 kg
Max dispersion: 0.21 mil (0.21 mrad)
Muzzle velocity: 905 m/s
Charge: shaped charge, Steel liner, A-IX-1 (RDX phlegmatized with 5% wax), I-238 detonator
Penetration: 420 mm RHA at 0 degrees.

3BK12M

Entered service 1968. Uses improved 3V-15 detonator.
Country of origin: Soviet Union

3VBK10/3BK14

Entered service 1968.
Country of origin: Soviet Union
Projectile dimension: 680 mm
Projectile weight: 19 kg
Max dispersion: 0.21 mil (0.21 mrad)
Muzzle velocity: 905 m/s
Charge: shaped charge, Steel liner, phlegmatized 75% HMX, 25% TNT; 3V-15 detonator
Charge weight: 1.62 kg
Penetration: 450 mm RHA at 0 degrees.

3BK14M

Improved version, replacing steel liner with a copper liner.

3VBK16/3BK18

Entered service estimated 1975.
Country of origin: Soviet Union
Round weight: 29.0 kg
Projectile dimension: 680 mm
Projectile weight: 19 kg
Max dispersion: 0.21 mil (0.21 mrad)
Muzzle velocity: 905 m/s
Charge: shaped charge, copper liner, phlegmatized 75% HMX, 25% TNT; 3V-15 detonator
Penetration: 500 mm RHA at 0 degrees.

3BK18M

Improved warhead. Entered service estimated 1978. Introduces wave shaping booster.
Country of origin: Soviet Union
Projectile weight: 19.02 kg
Muzzle velocity: 905 m/s
Penetration: 550 mm RHA at 0 degrees

3VBK17/3BK21

Entered service estimated 1980. Enhancements to improve reliability of the copper jet formation.
Country of origin: Soviet Union
Projectile dimension: 680 mm
Projectile weight: 19 kg
Max dispersion: 0.21 mil (0.21 mrad)
Muzzle velocity: 905 m/s
Charge: shaped charge, copper liner, phlegmatized 75% HMX, 25% TNT; 3V-15 detonator
Penetration: 550 mm RHA at 0 degrees.

3BK21B

Entered service estimated 1982. Depleted uranium Liner to enhance penetration of advanced composite armours like Chobham.
Country of origin: Soviet Union
Projectile dimension: 680 mm
Projectile weight: 19 kg
Muzzle velocity: 905 m/s
Penetration: 750 mm RHA at 0 degrees.

3VBK21/3BK25

Entered service estimated 1985.
Country of origin: Soviet Union
Muzzle velocity: 905 m/s

3VBK25/3BK29

Entered service estimated 1988.
Country of origin: Soviet Union
Round weight: 28.4 kg
Projectile dimension: 680 mm
Projectile weight: 18.4 kg
Muzzle velocity: 915 m/s
Penetration: 350mm to 400mm RHA at 60 degree tandem charge

3VBK27?/3BK29M

First seen publicly in 1998. Reportedly a triple charge warhead.
Country of origin: Russia
Projectile weight: 18.4 kg
Charge weight: 1.62 kg
Muzzle velocity: 915 m/s
Penetration: Estimated at 800 mm triple charge HEAT.

HE-FRAG-FS

High Explosive Fragmentation Fin Stabilised. General purpose rounds, for use against infantry, bunkers and light vehicles and other 'soft' targets.

3VOF22/3OF19
 
Entered service in 1962. Uses the 3V-21 detonator (mass = 0.431 kg, reliability = 0.98). The 90% lethal zone for infantry is reported to be 40 m wide and 20 m deep.[3]
Country of origin: Soviet Union
Round weight: 33.0 kg
Projectile weight: 23.0 kg
Muzzle velocity: 850 m/s
Max dispersion: 0.23 mil (0.23 mrad)
Charge weight: 3.148 kg
Charge: TNT

3VOF36/3OF26
 
Entered service in 1970. Uses the 3V-21 detonator (mass = 0.431 kg, reliability = 0.98). The projectile creates between 600 and 2,000 fragments.
Country of origin: Soviet Union
Round weight: 33.0 kg
Projectile weight: 23.0 kg
Muzzle velocity: 850 m/s
Max dispersion: 0.23 mil (0.23 mrad)
Charge weight: 3.148 kg
Charge: A-IX-2 (73% RDX, 23% aluminium powder, phlegmatized with 4% wax) 3.4 kg

ATGW/ATGM

9M112 Kobra
 
The 9K112 Kobra (NATO reporting name is AT-8 Songster) is also fired from the 125 mm main guns of the T-64 and T-80 series of tanks.[6]
Country of origin: Soviet Union
Projectile weight: 23.2 kg
Warhead weight: 4.5 kg
Guidance system: Radio-command guided
Range: 100 – 4000 metres
Penetration: Estimated at 600 millimetres (24 in) tandem charge HEAT.

9M119 Refleks

The 9M119 Svir and 9M119M Refleks (NATO reporting name: AT-11 Sniper) anti-tank guided missile has semi-automatic laser beam-riding guidance and a tandem hollow-charge HEAT warhead. It has an effective range of 75 m to 5000 m, and takes 17.6 seconds to reach maximum range. Refleks can penetrate about 900 millimetres (35 in) of steel armour and can also engage low-flying air targets such as helicopters.[6]
Country of origin: Soviet Union
Projectile weight: 16.5 kg
Warhead weight: 4.5 kg
Guidance system: Laser-beam riding
Range: 75 – 5000 metres
Penetration: Estimated at 900 millimetres (35 in) tandem charge HEAT.

https://en.wikipedia.org/wiki/125_mm_smoothbore_ammunition

[Vladimir Ivanović]

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Ovdje se vide dva različita pristupa potkalibarnom zrnu.

[kukimiro]

Žiroskopi C, A, B
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[Vladimir Ivanović]

Gdje si ovo iskopao.

Na lijevom žiroskopu, žiroskopu bočnog valjanja tenka, sa lijeve strane vide se dva klatna. Za uzdužni i bočni nagib tenka.

Koliko mi se čini, vide se tragovi skidanja ograničavača hoda jarma žiroskopa. Krivljenje ograničavača hoda jarma žiroskopa je veoma čest kvar na žirobloku, i to ako je neispravna kočnica topa kod opaljenja, odnosno, ako nema dovoljno ulja u kočnici.

I to sam mijenjao na svoju ruku gdje sam stavljao čiviju iz tvrđeg materijala.

Pozdrav

Vlado

[Vladimir Ivanović]

 Leningrad Mechanical Plant

Izrada potkalibarnog zrna

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[coaveliki]

Suvenir potkalibarna
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Jednog dana nabi se cijev u zemlju, vozač vrhunski. Marševski položaj bez stabilizacije ne bi nam Vladin sistem pomogao. Izvukao sam zemlju koliko sam mogao rukom al ostadoše trunke nedohvatljive. Riješenje da ispalimo barutno punjenje i izduvamo smeće. Nije bilo vremena hopa, hopa, hop mi čistimo top. Mislim da je dobro rešenje, ali nije zgoreg i vaše mišljenje. I tako ostade suvenir, jasno vam je zašto nije kumulativna ili trenutno fugasna. Poslije je bilo igrarije sa štapićima i kartončićima. Kafa na šporetu nikako da prokuva. Ubacim komad kartončića, kad u milisekundi voda iskače iz džezve a iz šporeta gdje god sastav izbija plamen. Prilično su šuplji šporeti.
Bilo je u zadnje vrijeme zanimljive rasprave, uglavnom sam posmatrač, ali gledaću da upadnem malo u priču. Nisam bio u nekim trenutcima, ali možda se vratim na neke tematike. Dodam mišljenje i upitam pitanje.
Usput, je li iko zna od koje je puške bajonet?

Pozdrav!

[atma]

Usput, je li iko zna od koje je puške bajonet?

Pozdrav!

Neka od verzija H&K G3?

[dzumba]

Према облику ножнице (јасније би се видело да је нож окренут "пљоштимице") пре бих рекао да је у питању нож за неки старији карабин или можда аутомат М-57 само што је рукохват мало измењен.

[Bozo13]

H&K G3, Iranski?

[coaveliki]

Bila neka rupa u zemlji.Nađemo vjetnamku maskirnu (alfa), rakiju (šljiva) i bajonet (nepoznatog porijekla). Evo rakijeeee i odjednom svima osmjeh na licu.
Moguće da je iranski, nož je crn (šminkeraj), nema oštrice, nije za krmokolja.
Pozdrav!