There have been multiple accounts created with the sole purpose of posting advertisement posts or replies containing unsolicited advertising.

Accounts which solely post advertisements, or persistently post them may be terminated.

verity_kindle ,

USS Constitution is a warship and still listed on the Naval Register. Fling her and the math gets much easier, nerds, get to crunching. She weighs around, what, 400 tons fully ballasted? Imagine the impact of the mainmast, smashing through the roof of that "civilian administration* building we memed about in March 2022, the one with anti aircraft on the roof. ANTI-AIRCRAFT. They’re fooked!

Rentlar ,

Ze French had ze right idéa!

https://c.tenor.com/bOC38kVMzH8AAAAC/tenor.gif

PugJesus ,

Are we stupid?

Yes

Atelopus-zeteki ,
@Atelopus-zeteki@kbin.run avatar

Are we crazy?

gravitas_deficiency ,

Also yes

hemko ,

I wonder how much energy it would require to fling a warship from, say, NATO lake to Moscow.

FiskFisk33 ,

at least 3

CanadaPlus ,

Probably depends entirely on the aerodynamics involved, if we’re assuming it’s approaching as an aircraft. This is kind of an intermediate range, and it has shitty ballistics, so the energy to just get it off the ground will be dwarfed.

floquant ,

I would say a rock is a better approximation than an aircraft lmao

CanadaPlus ,

If you throw it, and it doesn’t go into space, a rock is an aircraft.

Source: Am an airforce geologist. ^/s^

hemko ,

This is NCD, ignoring air resistance or at very minimum using wildly incorrect values is expected

CanadaPlus ,

Shit. So I should have gone with the “oversized hyperloop” idea and just said zero. My bad.

hemko ,

So I did some math, and I’m assuming we need about 1/3 of LEO velocity, it would take 707 SpaceX Starship launches to throw USS Abraham Lincoln to Kremlin.

This is of course ignoring air resistance, other physics and common sense + we’re assuming spherical aircraft carrier

Atelopus-zeteki ,
@Atelopus-zeteki@kbin.run avatar

I did some math once. The hangover the next day was incalculable.

CanadaPlus , (edited )

Did you get the 1/3 number somewhere? St. Petersburg is on the Baltic, and Moscow is only like 600 km away.

I’m sorry, I’m sorry. I can’t stop.

hemko , (edited )

Yeah I did some research and calculations, and pulled that number out of my ass

Edit:

Based on this guys math which I trust as much as anything in this community, you’d need 9522km/h velocity, which is pretty damn close to 1/3 LEO velocity (28000km/h).

This makes my ass scientifically proven

Atelopus-zeteki ,
@Atelopus-zeteki@kbin.run avatar

Remember your college physics: First Rule - we can ignore aerodynamics.

Skua ,

For these purposes I am, of course, assuming that air resistance doesn't exist. Which would probably increase this answer by a lot.

Narva bay to Moscow = 713 km
Fully loaded Arleigh Burke destroyer displacement = 8,432,800 kg

v = launch velocity
d = horizontal distance = 713000 m
θ = angle we're launching the ship at = 45 degrees
g = acceleration (from gravity) = 9.81 ms^-1

Range of a projectile equation:

d = (v^2 sin(2θ)) / g

Rearrange to find v:

dg = v^2 sin(2θ)
dg / sin(2θ) = v^2
v = (dg / sin(2θ))^0.5

Plug our numbers in:

v = (7130009.81 / sin(245))^0.5
v = (6994530 / 1)^0.5
v = 2644.72 ms^-1

So we need to launch at 2,645 metres per second (9,522 kph, 5,917 mph). To get the energy, we use the kinetic energy equation:

e = 0.5 m v^2
e = 0.584328002644.72^2
e = 29,491,794,808,885.76 joules
e = 29.5 terajoules

For comparison, the nuclear bomb dropped on Hiroshima exploded with about 60 terajoules of energy. So once you account for air resistance you're probably looking at a nuke of energy.

hemko ,

Honestly that sounds pretty good actually. We get to nuke something AND we get to throw a fucking ship to Moscow

CookieOfFortune ,

So let’s you want to yeet this over 1000km from a NATO country to Moscow.

You’d need at least 3000 m/s of velocity to do this (a ton more since this without air resistance).

A fletcher class destroyer is around 2000 tons.

So you’d need more than 8 terajoules or 2 kilotons of TNT.

CaptDust ,

Damn, that’s a high quality simulation. Those tasteful fractures, wonderful.

Tar_alcaran ,

Is it? I feel like the ship would basically pancake in on itself at first impact.

CaptDust ,

Dunno, I haven’t catapulted a warship recently but it feels right?

A_Very_Big_Fan ,

I haven’t catapulted a warship recently

Slacker.

Sarsoar ,

Yea the first impact is not pancakey enough. And the second impact is too stone crumbly.

Also the chain is uncanny.

But this is still amazing and way better than anything I could do in 100 lifetimes.

istdaslol ,

Because they could use a trampoline to fling them back and we’d end up the the biggest game of tennis

NegativeInf ,

I’d watch that.

NOT_RICK ,
@NOT_RICK@lemmy.world avatar

They said why not, they didn’t ask for you to give extra reasons why we should

setsneedtofeed ,
@setsneedtofeed@lemmy.world avatar

That’s why we have to start flinging them now. Before the Zs close the trampoline gap. Sure they’d fling a few warships back now. I’m not saying we wouldn’t get our hair mussed, but it would be minimal casualties. 30 or 40 million tops. Depending on the breaks.

  • All
  • Subscribed
  • Moderated
  • Favorites
  • [email protected]
  • random
  • lifeLocal
  • goranko
  • All magazines