r/NonCredibleDefense Sex-Obsessed Beer Lover 9d ago

It Just Works Rods from God, and Cleaning up Surplus

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1.1k Upvotes

50 comments sorted by

140

u/TheirCanadianBoi 9d ago edited 9d ago

I'm not sure if an Abrams could reenter in one piece. The space around the turret and gun would basically act like a plasma cutter.

Does anyone know what the terminal velocity of an Abrams would be? I would assume it would fall front down, but it might also tumble.

It would be fun to try.

74

u/Defult_idiot <-Visited an Italian Army base 9d ago

Assuming a drag coefficient of 1,8 (Cd of the Eiffel tower because there was no Cd for the Abrams), air density 0,683 kg/m3 which is the average of air density between sea level and 17 km (because using density from ISS orbit where air density is negligible gives you double digits mach numbers even with something as un-aerodynamic as an Eiffer tower), and a surface area of 2,44 m x 3,66 m= 8,93m2

SEPv3 Mass: 66.8 tonnes= 66800kg

For acceleration to be equal to zero weight=drag so Drag= 66800x9,81= 655308N.

Using drag's inverse formula V= sqrt((2x655308)/(0,683x8,93x1,8))= 345,513m/s= 1243,84km/h

This entire thing was calculated using highschool math, assumptions and without taking into account deceleration from much higher reentry velocities (so it's as if we dropped an abrams at 17km up in the air instead of orbit) so feel free to go "Uhm akshually 🤓" if you get more accurate numbers

46

u/SpaceEngineX 9d ago

Turrets are only held in by gravity, drag would overpower it and eject it from the ring before the unique geometry would cause any weird heating hotspots.

58

u/SamtheCossack Luna Delenda Est 9d ago

That only applies to naval turrets on like battleships. Tank Turrets do have an attachment ring, they don't fall off when the tank flips.

... I mean it is still coming out on reentry though, it is just going to need to break some steel first.

9

u/leberwrust 9d ago

What you are saying is that we need a big drone that steals the turrets of your enemy right?

6

u/Meihem76 Intellectually subnormal 9d ago

IIRC there are 48 bolts holding on an Abrams turret. There's a video up on Youtube of some guys changing one out.

2

u/TheirCanadianBoi 9d ago

Great point.

6

u/Bubbly_Taro Plane Dropped Flechette 9d ago

They should be girthy enough to hit the enemy with a few tons of steel or molten slag.

18

u/TheirCanadianBoi 9d ago

You know, on top of every other problem with this. This would not be a precision weapon.

The only possible use I could think of is starting a forest fire in the most comically inefficient way possible.

9

u/hufenschwinger 9d ago

Have you tried using... more? Think of them as .00000714 gauge pellets.

11

u/TheirCanadianBoi 9d ago edited 4d ago

Ooo~ what if instead of Rods of God we had the Piñata of God?

A spinning mass of metal blocks with ceramic interlocking joints. Reenters and gains considerable thermal energy, then detonates and can spread hot slag over an area the size of Shanghai?

There could potentially be enough individual fires, that management of them will quickly become impossible.

If you hit it before detonation, good for you, you might be slightly less than optimally fucked.

2

u/Environmental_Sea72 Fruity Boeing Sentry 💅 8d ago

You,

I like how you think

1

u/TheirCanadianBoi 8d ago

Canadian practicality?

1

u/Environmental_Sea72 Fruity Boeing Sentry 💅 8d ago

perhaps

1

u/Dies2much 8d ago

Be thinking cement. Metal is too expensive

49

u/Blindmailman Furthermore, I consider Switzerland to need to be destroyed 9d ago

Anyone else remember the 2010 movie The A-Team where they fly a tank?

9

u/hufenschwinger 9d ago

Right over the Frankfurt Cathedral.

3

u/KlatchianCamel 9d ago

Which way to Berlin? : )

4

u/Youutternincompoop 8d ago

Absolute Cinema

2

u/RadialRacer 9d ago

2

u/k890 Natoist-Posadism 8d ago
  • Officer, should we bring Anti-Aircraft or Anti-Tank gun for that one?
  • Shut up Hans and call for 88 mm!

OK, I know this joke is beaten to pulp, but I still think it's obligatory related to Antonov A-40 tank project.

2

u/shoppingbaggins 8d ago

Are we forgtetting this Sub's mascot, the AeroGavin?

33

u/LovableCoward 9d ago

No one’s giving any orders. No one’s giving any anything. There’s no coordination. So the captain is the ultimate authority 6th Company has. That’s fine with Braellen. They’ll move in, deploy, secure. Rescue and secure, they’ve trained for that. And if it’s not an accident, if it’s an attack… They’ve trained for that too. He’s thinking that when things change and their plans change with them. It starts raining main battle tanks.

The first impact is surreal. Braellen sees it plainly. A Shadowsword super-heavy, almost perfectly intact apart from one trailing track section, drops out of the stained sky about sixteen hundred metres ahead of him. The tank’s hull plating is faintly glowing pink from re-entry. It hits. Hammer blow. Blinding light. Shock-wash. The impact creates an explosion akin to a primary plasma mine. Battle-brothers are thrown through the air like toys. Some bounce off transports or stacked freight.

Braellen’s squad is at the edge of the blast force. They stay upright as their power armour auto-locks and braces, sensing the explosion. Inertial dampers straining. Braellen feels grit and micro-debris spattering off his armour like smallarms fire. The shock passes, the auto-lock relaxes. Discipline wavers for a second. No fear, just bemusement.

A tank doesn’t just fall out of the– A second one does. A Baneblade, this time. It’s tumbling end over end. It hits the company shelters a kilometre west, and causes an impact blast that splits the ground and triggers a landslip on the facing hill. Then two more, both Fellblades, in quick succession. One crushes a pair of parked Thunderhawks. The other hits just off the trackway a split-second later and punches a crater, but doesn’t explode. It actually bounces, disintegrating. It bounces and tumbles through a scattering line of battle-brothers, mowing them down, shedding torn plate and wheel assemblies.

More fall, all around. Like bombs. Like impossible hail. Like playthings tipped out of a child’s toybox. Some explode. Some fracture on impact and bounce. Some bury themselves in the open ground like bullets in flesh.

Braellen looks up into the sky. It’s almost blue apart from the smoke stains from the city. It’s full of falling objects: tanks, armoured fighting vehicles, troop carriers, cargo pods, lumps of debris. They turn in the air, catching the sunlight, glinting, spinning, some fast, some slow. Ash and metal-fibres rain down with them. Strands of cable. Wire. Optical leads. Pieces of haptic keyboard. Pieces of data-slate. Glass and brass splinters. Flakes of ceramite.

Somewhere, far above, a low orbit depot has broken up and the packed contents have spilled out like treasure from a sack. Enough war machines and equipment for a full division have been thrown down to be smashed by gravity. They’re too low to fully burn up. Air friction is simply heating them.

To his west, amongst the impossible skyfall, Braellen spots the flashing delta-shape of a Stormbird, rotating as it falls. Then he sees falling bodies too. They have not endured the drop as well as the machine parts. They have scorched and cooked. They land like bundles of wet branches, and burst. They do not gouge vast craters and explode like the falling armour, but their impacts are somehow far more devastating.

Know No Fear by Dan Abnett.

15

u/PhotonBarbeque 9d ago

Of course warhammer did it haha

4

u/Intergalatic_Baker Advanced Rock Throwing Extraordinaire 9d ago

Great read.

6

u/HowNondescript My Waiver has a Waiver 8d ago

Abnett always has had a way with words

2

u/Yintastic 8d ago

I saw shadow sword and my eyes went WIDE, I love 40k.

2

u/Princess_Actual The Voice of the Free World 4d ago

I was just about to quote it. Love that book.

1

u/kloudykat 5d ago

Nice choice of quote

Also excuse me, I need to step aside for a minute and pull-start my chainsword.

Heaven forbid I do a salute with a non-running chainsword!

8

u/SailToAndromeda 9d ago

Getting mild John Ringo/Eye of the Storm vibes from this...

2

u/[deleted] 6d ago

[deleted]

4

u/INTPoissible B-52 Carpetbombing Connoisseur 9d ago

Reminds me of when the Automatons would literally drop tanks on me in Evacuate High-Value Assets missions.

6

u/bocaj78 🇺🇦Let the Ghost of Kyiv nuke Moscow!🇺🇦 9d ago

What the fuck do you want to do with these beauties? They deserve to be loved!

4

u/Tomcat_419 Woodland camo is best camo 9d ago

Helldivers 2 theme intensifies

3

u/nYghtHawkGamer Cyberspace Conversational Irregular TM 9d ago

Two questions for OP:

  1. Where'd you get the art?
  2. Could I get an honorable mention for pointing out that uranium is already used as reentry shielding?

2

u/Usual_Philosopher355 9d ago

Oh no, Think of the vaporised DU, you might give an entire continent cancer 

2

u/Puzzleheaded-Yak5836 8d ago

Isn't this that Red Alert 3 thing the soviets have?

2

u/P3Abathur 8d ago

How vulnerable are they to interception by T-72/T-90 Surface-to-Space ballistic turrets ?

1

u/BitOfaPickle1AD Dirty Deeds Thunderchief 9d ago

Alexa, play Take a Ride by Don Felder.

1

u/User_joined_channel 9d ago

US Marines have figured out how to full send it on a combat drop in this new space age.

1

u/pieboy13371 8d ago

This picture sums up cod ghosts' ending pretty well.

1

u/ChemistRemote7182 I am Holden Bloodfeast 6d ago

Gonna spread that DU dust to make it extra spicy

1

u/BasalCellCarcinoma 4d ago

"Magnetic Satellite Ready"

"Orbital Dump Ready"

1

u/Common-Owl-8155 1d ago

This is why Abrams has spaced armor. 

0

u/Fofolito 9d ago

inb4 Rods from God wouldn't actually work

5

u/LightningController 8d ago

They would, but it would just be a worse MOAB in a predictable orbit.

1

u/Knoxx88 8h ago

///ALLIED DESTROYER JOINING SQUADRON. DEPLOYING M1 ABRAMS TO COMBAT ZONE///

https://www.youtube.com/watch?v=zcwOTjDf0UU