interesting, if if had giant rifling it would probably screw into the tank.
@militarysimulationlab
Жыл бұрын
Exactly
@DarquosLeblack
3 ай бұрын
That sounds rather difficult to achieve. The rifling would negatively impact the integrity of the round (snapping a drill head is much easier than snapping a rod of the same material & diameter) and at those velocities it'll be difficult to guarantee the cutting edge won't shatter from the impact...
@rykehuss3435
3 ай бұрын
@@DarquosLeblack Drill head easy to snap because its attached to the drill and youre pressing on it. Spin doesnt mean anything
@me-fp6bf
Жыл бұрын
Wow! This is really interesting! I totally didnt expect the rotation to perform almost better. Maybe you should expand on this.
@militarysimulationlab
Жыл бұрын
Thank you!
@samuelloomis9714
3 ай бұрын
The added rotation is added energy, but it looks like it slightly reduced the penetrative capabilities in exchange for greater spalling.
@JoshuaNicoll
3 ай бұрын
I would say greater spallinh is a benefit, the projectile was able to transfer more engery into the fragmentation, crew and critical systems behind that are gone.
@madmexican1761
Жыл бұрын
the only problem hitting this specific stop on a tiger is that i believe the transmission would block most if not all the spall if hit towards the center, the tank would most likely be disabled due to damage of the transmission, but the crew would mostly fine
@burner33
Ай бұрын
Wrong
@Constance_tinople
Ай бұрын
I mean sure the crew is sort of fine but the crew are also going to abandon the tank
@burner33
Ай бұрын
@@Constance_tinople the crew will be dead, there is a massive amount of shell still coming through and the transmission and its cover is made of very soft steel compared to that used in the armour
@Constance_tinople
Ай бұрын
@@burner33 fair on the cover but I don’t think the transmission itself would be soft no? Definitely moreso than armor plate but still fairly tough in order to handle the strain of hauling a 40 ish ton tank around
@Kevin-mx1vi
25 күн бұрын
Fine theory, but the spalling and remains of the shell are travelling at huge speed and hence with a great deal of energy, so they don't simply stop upon striking something, but bounce around inside the tank until their energy is expended. Squishy things such as the crew don't stop them.
@atlas4733
3 ай бұрын
This principle is used in the 8.6mm blackout bullet to carry more energy while staying below the speed of sound.
@otaviocamanho1135
Жыл бұрын
It may seem like not spinning may increase penetration but we have to remember that the spinning gives stability/precision. I remember the chieftain talking about heat rounds before fin stabilization that the spin motion decrease its penetration, but shooting it on a smoothbore cannon (no spinning) and no fins its accuracy was horrible "couldnt hit the side of a barn being inside of it"
@ZETH_27
3 ай бұрын
HEAT works on different principles than a solid-core AP projectile. The spin of a HEAT projectile widens the jet generated by the shaped charge's detonation and reduces the warhead's penetrative capability. On an AP shell, the solid rigidity of the projectile prevents it from "spreading out" in the same way as the much softer liner of a HEAT shell does, and during penetration, the rotation doesn't to my understanding contribute to any reduction in effectiveness.
@otaviocamanho1135
3 ай бұрын
@@ZETH_27 Yes, i was talking about heat and for some reason forgot to even mention it
@o-hogameplay185
Жыл бұрын
Jerry! Forget about the AP shot, bring the oil drill!
3 ай бұрын
I mean rotation on the round reduces the armor penetration. And the explosive filler round can do better than a round that rotates without the expense of armor penetration.
@hi_-bz7wf
3 ай бұрын
The issue is that a round that isn't rotating won't hit anything. Explosive fillers also harm penetration performance.
@JoakimfromAnka
Жыл бұрын
Interesting stuff. What would be a more realistic rotation speed?
@militarysimulationlab
Жыл бұрын
Well.. I wasn’t able to find it. Somebody help me plz
@peasant8246
Жыл бұрын
@@militarysimulationlab Sure thing. I dont have data on the british 6pdr gun, but the german 75mm Kwk 40 L/48 had a uniform twist at 7°. Assuming muzzle velocity of 790m/s the outer surface of the shell would move as it leaves the barrel at 790 * tan(7°) = 97m/s. The circumference of a 75mm calibre shell is 0,236m. That's 412 RPS or 24720 RPM.
@goreboxz8474
5 ай бұрын
0:20 pov: ur the gunner and this is the last thing u see
@Akaeru
3 ай бұрын
The Golden Spin
@Real_Claudy_Focan
3 ай бұрын
Seems to fight the slope and get a better normalization
@Mycikakat
Жыл бұрын
It spalls the tank more, but i think it has less penetrating power, so, more spalling, less pen
@unofficial_computer
Ай бұрын
That's a cracked tank.
@RAYY_WILD
4 ай бұрын
seems like rotation is adding a lot of "friction" just add a bit of explosives into it and it will be a lot more effective, APHE was invented for a reason)
@signs80
3 ай бұрын
APHE isn't that useful for thicker armor because the fuze usually breaks if the shell can't get through very easily
@RAYY_WILD
3 ай бұрын
@@signs80 if armor is too thick there would be no difference if it breaks or not, but it has more potential at all
@signs80
3 ай бұрын
@@RAYY_WILD I'm not talking about armor too thick to penetrate, just armor that is close to being too thick
@RAYY_WILD
3 ай бұрын
@@signs80 if shell can make it through, broken fuze tip wont anyhow affect its performance
@signs80
3 ай бұрын
@@RAYY_WILD It effects the spall generated. The point is that on thicker armor the fuze breaks and the shell does not explode, it just acts like regular AP. Since AP vs. APHE is usually around a 10% difference in penetration power or so, it's questionable if the slight benefit in potential damage from an APHE shell is worth the reduced penetration
@peasant8246
Жыл бұрын
But what degrades the penetration of the Fast Rotating Shell (FRS) is not the rotation itself, its the yaw accompanying it. Perhaps a reasonable rotation speed would not be detrimental to its penetration capability.
@militarysimulationlab
Жыл бұрын
You mean the penetration performance degrades? That would make sense because the performances were not particularly different in two cases.
@peasant8246
Жыл бұрын
@@militarysimulationlab it looks like the FRS had less residual velocity after perforating the armour, which means it would need higher initial velocity in the first place.
@chrisdiehlcannon5812
2 ай бұрын
More shrapnel with the rpm
@ThatRavenGuyYT
6 ай бұрын
though of cours to make it spin requires energy which is taken from velocity
@_Rudi_666
Жыл бұрын
Well, both rounds have the same speed, one with no rotation and one with 300000 rpm. The rotation needs extra energy which has to be provided by a much heavier load of propellant. Rotation is bad for penetration. Use the same amount of energy this round needs for its 300000 rpm (+ the velocity) and convert it into velocity of a round with no rotation. Penetration will be much deeper.
@militarysimulationlab
Жыл бұрын
Exactly. Actually, it is known that rotational motion is not good for penetration performance because it increases the energy loss by friction.
@talonway3735
Жыл бұрын
Funny spin, will a shell do more damage if it had drill like threads on its surface? And could you try diamond skull against some NATO round?
@militarysimulationlab
Жыл бұрын
Good idea. I was already preparing a vid on the shot with a spiky skin. And I’m also studing how I can do more realistic simulations on the diamond materials than the previous vids. If it’s done, I will give you more vids on the diamond things.
@militarysimulationlab
Жыл бұрын
@TaWay Here's what you requested: kzitem.info/news/bejne/qm1_n4p3sHyDYKw.
@NK-qn6pq
Жыл бұрын
wait...a full caliber 6pdr can penetrate a tiger??? I thought it needed APDS to do that!
@militarysimulationlab
Жыл бұрын
I think that depends on the muzzle vel. Please refer to the performance chart given in the vid. If I misunderstood something in the chart, please let me know.
@otaviocamanho1135
Жыл бұрын
It really depends on the ammount of gunpowder and the lenght of the barrel. Remember that a 75mm could be a reaaaaly short barreled early pz4, could be a late decent cannon pz4, could be a sherman, could be a panther with far superior performance
@idontlikecommunists9677
4 ай бұрын
Yeah 57mm can penetrate a tiger from quite decent ranges
@notlistening6499
3 ай бұрын
Simulation: Shell Penetration Mind: "Burrito"
@ValentineC137
3 ай бұрын
I read that as rounds per minute
@0100001101001110
7 ай бұрын
My dumbass thought you were going to be shooting a Tiger at 300k rounds per minute.
@GuuMonster
4 ай бұрын
Now we gotta figure how to spin a tank shell at that speed xdd
@adeildojr2082
3 ай бұрын
Now do a 300000 m/s AP round hitting the Tiger 2 frontal plate
@shakal_
3 ай бұрын
why does it matter what temperature spall is? isn't the speed and mass what kills? like if spall was -100 degrees it'd still kill all the same
@sasin2715
3 ай бұрын
theres a pretty big difference between room temperate steel touching your skin and 500°C shrapnel bring thrown at you
@CanardCubique
3 ай бұрын
I dont think so, you'll die anyways just as fast@@sasin2715
@brunoscarlatto4679
Жыл бұрын
Pz4 g vs Tiger.
@chasebh89
3 ай бұрын
I cant tell if this was more or less effective
@OscarEXA
6 ай бұрын
I honestly thought that you were going to shoot a tiger using a 300000 rpm 6-pdr lol.
@LCKYGHST
2 ай бұрын
It won't penetrate if you angle the tiger...
@sillyfisheee1084
2 ай бұрын
what app is this?
@unknown185
3 ай бұрын
Dat spalling tho
@BARelement
6 ай бұрын
So the spin does more damage I see
@mmmyes9353
Жыл бұрын
whats with the unrealistically brittle armor
@militarysimulationlab
Жыл бұрын
That’s because high strength armor gets brittler than usual metal.
@mmmyes9353
Жыл бұрын
@@militarysimulationlab tiger 1 was not brittle. Was quite ductile due to the steel grade at the time actually. Search it up. You can see the petaling of armour of tiger 1 penetration holes
@militarysimulationlab
Жыл бұрын
Thank you for your comment. As you know, the structural behavior in the simulation strongly depends on the parameter I put. Let me reduce the brittleness in the next vid.
@landonscharms2664
Жыл бұрын
Anyone know what these are called I would love to play around with a sim like this
@militarysimulationlab
Жыл бұрын
This is called finite element analysis.
@landonscharms2664
Жыл бұрын
@@militarysimulationlab W man
@MsciwojzPolska
3 ай бұрын
This mesh is atrocious. It does not simulate anything. It is impossible to capture physics with so low quality mesh.
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