this post was submitted on 28 Mar 2024
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What would this do apart from annoying the tank?
Eh, I think you can definitely break a track or drivewheel with this. If your tank looks like the one in the image, you might even do a little more damage.
It's also a great way to scatter yourself over a wide area by means of high explosive.
Probably this. If a tank is in a narrow space and a tread is busted, it effectively becomes a stationary target with seriously limited usefulness.
Meh. Big stick fall on tank. ??? Nuthin.
Explosives on that stick is another matter.
The I-beam is heavier than that. It specifies heavy I-Beam.
Big stick smash between tracks/wheels of moving tank? Maybe immobilized in an urban area.
Tank crew unhappy.
“Your concussion is not service related”
Depending on the beam's weight, where it impacts, and what kind of tank it is, here are some possible effects:
Of all these possibilities, I think just trying to get the damn thing stuck in the wheels/tracks is the most likely to actually work, even on relatively modern tanks.
A steel beam weights 10 to 100 kg per meter, railway rail is 40 kg/meter, so I'll take 50 kg. Four story building in Europe is approximately 12m.
In the drawing, beam+timber are almost as long as the building is tall, so for simplicity we can assume 11m, of which 5m is the beam and 6m is the timber, and we can assume the pendulum being suspended at 1m above ground in resting position. Beam's centre of mass is located at half it's length, so 8.5m is our effective length. Angle at which the beam-timber are standing looks like, dk, 35°? Then, the beam is suspended ~5m above ground. A 250 kg beam would have potential energy of 12.5 kJ (close to .50 cal). Alternatively, I can guestimate a 100° swing arc and 32 kJ energy, which is slightly more than muzzle energy of 14.5mm anti tank rifle. With panzers 3 or 4 we're looking at something like 15-20mm side armour, 14.5mm B-32 bullet (steel core) could pen 32mm at range, probably closer to 40+? point-blank. Of course, a bullet concentrates this force on a small area, through an I beam could also hit with a corner, give or take bigger kinetic energy of the beam and the need to puncture (absolute best case scenario, ofc) 15mm instead of 40+, and the fact that the bullet doesn't expend all energy purely during pen, so required energy for penetration is even lower. Another interesting moment in considering impact to and near hatches, welds, riveted joints, etc, is that unlike a bullet, which penetrates and carries a significant portion of it's kinetic energy inside - even a steel beam which initially punctured the armour with it's corner would still get stuck and transfer all its energy to whichever it hit.
In conclusion, with an older/lighter WW2 tank the beam under optimal conditions could maybe perforate the armour, break some welds, or at least dent it. And if we're talking about a less armoured vehicle, like an APC or an armoured car- the beam can either go through or significantly bend the ppate, likely disabling the vehicle. Could even work against IFVs (BMPs are cardboard, there are areas on the side which can be penned with small arms), through it's hard to imagine how it would be worth the hassle in modern context. And in any case crew would get disorientated by their whole world turning into a bell.
Given the era of tank depicted: a lot of damage.
Many early tanks were designed to deflect small arms fire and shrapnel from artillery.
Even so: Aas anti tank weaponry and armor to match developed: tanks notoriously had weak armor when not being hit directly from the front. A swinging I-beam from an upwards sideways angle could definitely compromise a 1930s era tank in a critical fashion.
Hit the cannon with this and they can't shoot anymore
I'm sure the A-Team or Magyver could do that, normal people not so much.
Humans become dangerously inventive and resourceful in guerilla warfare. Its fun (and sometimes horrifying) reading old booby trap recipes that was shared around by Milorg here in Norway during WW2.