Strv 103 BAR ARMOUR SIMULATION | T-62 vs S-Tank | 115mm 3BM3 APFSDS Armour Piercing Simulation 

Hi, a while ago I sent you an email offering OC armour design to test against APFSDS. Take a look at it if you're interested. 😊 Also dude, you definitely deserve Patreon page for your efforts on the channel.

Could you do T-62 vs Is7 please?

Extreme sloped armor is great but you have to make it thicker if you expect to survive against a MBT

@@hotlanta35 the thing is that this tank was designed in the 1950s while spicy needles were invented in the 60s. When this tank was designed, almost nothing could penetrate it from the front.

Could you do one with the Centurion mk. 5 AVRE where you pen the bulldozer blade and then the tank

I thought WW1 was more about "Make it thicker"?

@@thehammurabichode7994 lol WWI was just “make it move at a speed faster than I can walk”

@@thehammurabichode7994 WW1 is just "Make it"

Well, post ww2 rounds could go through like 300mm+ of RHA. So you'd start needing like a half metre thick metal box, which is kinda hard on the engine and transmission. So making the armor just thicker very quickly becomes impractical for anything that isn't a bunker.

@@sol2544 interwar is just, slap as many guns as possible on it

Slopege :D

they would still survive cuz it would hit the engine the crew compartment is more back

It's because it's sloped DUH

@@acog_is_good1650 thing would probably just slip right trough everything if it managed to pierce, idk tho i'm not a engineer and i dont design armored engines or heard of

and it wouldn't even kill the crew. the shrapnel would be stopped by the engine block and/or the internal armour shield. And since the vehicle has 2 engines, even if one is taken out of commission, the vehicle can still counter-fire or retreat.

Uniques: yes, totally worthless: yes

@@henrik3291 not wordless, for the porpoise it was build for

@@henrik3291 This tank is not used for head on combat, as it's a defensive tank. you probably wouldn't even notice the tank as it was very small as it was only 40 tons. Now for head on combat, yes it is worthless. Defensive? No, and the tactic with the tank was to ambush and retreat.

@@anhaltboyzrule1704 "Defensive tank" yeah that is the problem xD. Some Swedish officers thought it would better to redesignate as an assault gun or a tank destroyer.

@@henrik3291 really? Didn’t know that. Interesting

or maybe battleship?

@@kajetus0688 "YAMATO" kudasai.

thats not even that bad tbh, however I Draw the line at HULL AIMGING AHAHHAHHAHAHAHHHHHHHHH WHY GAIJIN

while its quite easy to simulate this.. just compare achieved penetration vs effective armor.. and amount of overmatch should determine amount of shrapnels generated... so in this case, relatively small amount...

It wouldnt do jack shit in Warthunder only damage the engine or do nothing as the swedish angle god can only be killed whit flanking

​@@JaM-R2TR4 The problem is War Thunder doesn't have any kind of over-matching process currently. This is why big calibres and HE don't work properly on angled surfaces in WT. I would love to see a proper over-match feature in War Thunder, it would be a game change for the big-boi guns. I'd also love to see deteriorating armour, shooting the same spot twice would send the round straight through the weakened armour.

Balanced by War Thunder ALSO saying, "My gunner, driver and commander are all dead? No problem - I, the loader, shall drive, aim and reload the entire tank all by myself!"

Tungsten darts also ricochet but they tend to deform more when doing so

@@a.e.richardson218 how can brittle tungsten deform more than steel?

@Ēriks A. I meant a ricochet without completely destroying the projectile.

@@Artemonim Projectiles will always be deformed/destroyed after a deflection.

@@Artemonim Considering the speeds and energy involved in these simulations, that’s not really possible unless it’s an extremely glancing hit.

There IS a simulation video on RU-vid that illustrates how a ricochet becomes the dominate result. The angle of obliquity is stepped up in multiple simulations, from around 81° to 83° in 1/4 degree increments.

it was installed against shaped charge warheads, yes, however it functions to destabilize APFSDS projectiles as well, which drastically reduces their penetrative power.

@@ZETH_27 Statistical armour through and through. Against APFSDS the projectile needs to hit the bars, and against RPGs it needs the warhead to go between them haha

It isn't specifically designed to defeat APFSDS, there's a lot of empty space the penetrator could slip through without hitting it. But if it does hit the bar, especially just to the side, it imparts an angular force into the projectile, which then causes it to change it's orientation, in relation to the directions of its force. If the penetrator is hitting off axis, then it is not able to support the leading edge, making it much more susceptible to fracturing and having the energy redirected.

@@dposcuro Yes, thought as much, and I'd guess it has a far higher chance to stop SC than KEP.

@@MaxRavenclaw it was designed for apds in mind not apfsds.

One of the worst military projects that Sweden has invested in

@@henrik3291 The STRV 103 was designed during a time where there were no T-72s, and would be used when there wouldn’t be many in service during the time. It’s main opponents were AP and HEAT rounds which it can stop fine

The Strv was a defensive tank, so i wonder if the t-72 would have noticed it by the time the strv had fired and retreated.

@@anhaltboyzrule1704 Again, what you are describing is a tank destroyer

@@henrik3291 Strv 103 is great for Sweden. Now shut up

it is welded on in this simulation aswell.. so yes.

Did you know that the Merkava tank was heavily influenced by the S-tank design. The Israeli even consulted some Swedish engineers during the development.

Will do at some point

Вы когда-нибудь видели ствол Калашникова в замедленной съемке при стрельбе?

far from a beast. mediocre, 3bm3 entered service 5 years before the strv 103 (for 103c its like 20 years) and it perforated, disabled the engine and could have gone into the crew compartment. also somehow despite having only 40mm of armor it weights more than a t72 and the same as a t80B

A concept never tested in action in fact. The only planned purpose was ambushing other tanks being entrenched. Well a tank has zillions of others purposes besides that

@@dsheshin Test made in Sweden showed that it could respond and turn to engage a target as fast as a turret tank could only disadvantage was it could not move and fire but in 1956 that was not a problem

@@dsheshin "The only planned purpose was ambushing other tanks being entrenched" Completely wrong. It was intended to be used like any other tank, which in case of Sweden meant aggressive attacks against beachheads and air landings.

Dead Soviet t62 column right there ;)

~shotgun

OP AF

@@axeavier And the entire engine compartment betwen the front and the crew.

As mentioned by others already between that penetration and the crew compartment you have the Gearbox, the Engines, and lastly a Spall shield separating the crew compartment from the engine compartment. So i don't think any of those fragments would penetrate the crew compartment.

@@Mattebubben the spall shield is 30mm(or 20 cant remember)

it doesn't matter tbh since the vehicle would be disabled anyway. Without engine it's just as useful as dead horse considering the fact this thing has no horizontal traverse whatsoever

@@einar8019 Yeah, WT (which few like to admit is their source), has the internal shield modelled wrong. IIRC it was 30mm yeah, but I'd have to look it up to be sure.

Thanks, but this is showing an impact between the horizontal bars so they don't need to be modelled

AP and APHE are two very different rounds.

There was plane to make a next generaltion of the S-tank, Stv 2000, but it was to expensive so Sweden did buy Leopard 2 instead.

@@kirgan1000 Strv 2000 was a conventional (well, by Swedish standards) turreted layout, as it was well recognized that fully stabilized guns had made the strv 103 concept obsolete.

@@BPo75 Yes you are right, think it was a very early starge of Strv 2000 that was a bigger and meaner Strv 103, and the late from of Strv 2000 did have a turret.

Нет, решетка должна была защищать от кумулятивных зарядов большого калибра, которые были распространены в машинах и ракетах Варшавского договора в то время для дальнего боя.

At 1000m its upto chance if it hits a bar or not

The HEAT-grid was never intended to do anything against AP rounds, so if it had any effect at all it would be a lottery win.

They did test it on later models. :)

Because of the HEAT-grid, it wasn't deemed necessary.

Do you mean the bars or things on the plate? For the bars, 500bhn would be better than RHA for its weight but can only be achieved on thin plates. As for the tracks and other things, no, it is weaker than rha

Автор в мультики обыгрался. Эту картонку подкалибер насквозь прошьет. А у него на мульте фольфрамовый наконечник заменён на жевательную резинку.

That is if the 103 is spotted, which it won't be

It's not a warhead, just a projectile, or rod, or whatever you wanna call it. Regardless, it doesn't have any explosives so it isn't a warhead.

Not so much the cap, as it's a kinetic penetrator, but it definitely destabilized the round making it far harder for it to penetrate sloped armor

Correct, it was original equipment (and not added later) but only revealed and mounted in case of national mobilisation.

Yeah then solve logistics and production costs, oh and also you need a better engine so replace the 2 existing engines for another 2 more powerful ones probably imported because its the best engines they had anyway, and don't forget to enlarge the tank to fit everything back again. good luck with that..

instead of making it 100 mm doing it 60 mm would be more than enough

Only way you'd be able to do that would be to either remove the engines or the gun, as the weight limit was absolute.

I think it depends if it hits the drive train/transmission, the STRV has 2 engines so theoretically if one was knocked out they could rely on the other to stay mobile

@@imagifyer good to know.

"The simulation shows the 3BM3 impacting the Strv 103 at 1km range, at a lower portion of the upper plate." Difficult to say. This is where the front fuel tank and the brakes are located. A hit in this area wouldn't damage any of the two engines or the transmission but brakes or clutches.

Yes, just for simplicity. It wouldn't affect it as the bar has barely bent by the time the projectile has passed it, so the projectile wouldn't see the difference between fixed/realistic

It has two engines, nevermind that the projectile has too little force left to damage one of them

I hope i can simulate that one day; my current pc isn't powerful enough

@@SYsimulations what software are you using for this? You may have the ability to outsource the "work" to cloud computing platform, like a "render farm". So you setup the sim and the processing part of it actually gets sent out and done on a server that's "rented" and you're returned the rendered product. Some programs have a link within them so you don't send the file over with instructions but it literally just processes on the communal server via net link rather than your PC's hardware. It's great for video editing and 3D model rendering, can still use your computer while waiting for the renders to complete because they don't use up any of your physical pc resources.

This ^ see if it really helps or if it increases penetration due to a longer standoff range letting the jet develop.

HEAT won't do muh against the front or back of the STRV as it has an spall shield

@@Litium_Greinder exactlyyy

@@Litium_Greinder eh, most HEAT munitions actually increases their penetration power when they're detonated up to a meter or more away from the armour, so "spaced armour" actually has the opposite effect from what one might think.

I would love to but don't have the pc power for shaped charges

They're only present higher up, if you look at the image at the beginning of the video you can see where they start

Please read the description and see the image at the beginning; the ribbed armour only starts 1/3rd of the way up the plate (the impact is below that point)