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Hatebag
Jun 17, 2008


Real hurthling! posted:

why do mortars make a cool fwump sound when they launch in movies instead of a boom?

Mortars have a muzzle velocity around 90 m/s, howitzers fire at 830 m/s. It's similar to how a silencer for a pistol reduces muzzle velocity below the speed of sound, so you could think of a mortar as a tiny silenced howitzer
Speed of sound is around 350 m/s

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Frosted Flake
Sep 13, 2011

Semper Shitpost Ubique

I knew the speed of sound was involved somehow, thanks.

Cuttlefush
Jan 15, 2014

gotta have my purp

Frosted Flake posted:

Wait, is the engine noise coming through cabin speakers in bmws? lol

lol yes, some of it. you can even change it in some

https://www.bmwblog.com/2020/03/13/bmws-new-reduced-interior-engine-noise-is-a-revelation/

Frosted Flake
Sep 13, 2011

Semper Shitpost Ubique


"BMW was one of the first brands to introduce artificial engine/exhaust sound into the cabin. Using speakers to play an artificial version of the car’s own engine noise, every modern BMW adds at least a little bit of engine noise to the cabin. This is due to the fact that customers expect quiet cabins but quiet cabins reduce the amount of engine noise you can hear. So if you want to have your cake and eat it, too, you need to use some fake engine noise. However, BMW has gracefully added a new feature to its performance cars and it makes a world of a difference — adjustable engine noise."

:psyduck:

jfc

Cuttlefush
Jan 15, 2014

gotta have my purp
lol yeah

Delta-Wye
Sep 29, 2005

you vs enemy artillery your commander told you not to worry about

Real hurthling!
Sep 11, 2001




when did they start putting the sound through the speakers i want to make fun of someone but i think their car is pretty old now

Cuttlefush
Jan 15, 2014

gotta have my purp

Real hurthling! posted:

when did they start putting the sound through the speakers i want to make fun of someone but i think their car is pretty old now

you can always make fun of bmws

Slim Jim Pickens
Jan 16, 2012

Shrecknet posted:

https://www.youtube.com/watch?v=yyUgqk6z7rY

This is a wild movie because it made 3 years after the war and includes actually bombing run footage but focuses almost entirely on the human cost in lives and (more importantly) shattered psyches. Absolutely insane what we did to our young men.

It also, coincidentally, loving slaps

The movies actually made/acted by guys who'd served in WWII tend to depict the war as this hazy and spaced out memory that debases everybody with industrial death. The naval equivalent of this is The Cruel Sea. For the army guys there's The Big Red One.

Turtle Watch
Jul 30, 2010

by Games Forum

Filthy Hans posted:

when I was a kid we went on several school class trips to decommissioned naval vessels (there are a ton of them in NJ) and one of the things that really struck me were how there were some interesting weapons systems that were never in the war movies I watched, probably because they just weren't exciting or cinematic



this is a "hedgehog" launcher, hedgehogs are basically small depth charges that would only ignite if they made direct contact with a submarine, they'd launch a bunch rapidly and were found to be more efficient (in terms of the ratio of number of attacks vs sub kills) than depth charges designed to detonate at certain depths and create much larger explosions that were close enough to damage subs with shockwaves

comparatively cheap, simple and effective but not sexy enough to compete for screen time with torpedoes and depth charges

Actually they made two movies about these.

Danann
Aug 4, 2013

https://worldpopulationreview.com/country-rankings/largest-navies-in-the-world

quote:

Top 10 Largest Navies in the World (by total number of warships and submarines - 2020):

China - 777
Russia - 603
North Korea - 492
United States - 490
Colombia - 453
Iran - 398
Egypt - 316
Thailand - 292
India - 285
Indonesia - 282

Modern navies and why "largest" does not mean "most powerful"

While the above data are helpful, it's vital to keep in mind that they can also be misleading. Size is one thing, but strength is something else entirely. Navies can be made up of a wide variety of ships, from antiquated 180-foot-long patrol boats to 500-foot submarines armed with nuclear missiles to state-of-the-art 1000-foot aircraft carriers laden with up to 90 fighter planes and/or attack helicopters. Yet, when totaling the number of ships in a country's navy, each of these three very different vessels counts as the same thing: one ship. This is akin to saying a squirrel is the same as a rhino, or a scooter is the same as an 18-wheel semi-truck. But it's what happens when navies are compared based solely on their total number of ships.

What's more, different sources have contrasting guidelines about which types of ship they consider part of a country's navy. For instance, China's navy includes more than 100 hovercraft, which sources may or may not consider navy ships. Also, most modern navies incorporate not just commissioned ships on active duty, but non-commissioned ships, support vessels, reserve fleets, and even under-construction ships, which some sources count and others do not. The way a given source handles variables such as these can have a massive effect on the total number of ships a country's navy is estimated to have.

For example, the producers of the list above estimated that in 2020, the United States Navy had 490 ships and China's navy had 777 ships. By comparison, the United States Department of Defense's official assessment for 2020 considered China's navy the largest in the world with 355 ships and counted the United States as having only 293. Why are those estimates so different? Most likely, the DoD estimate included fewer classes of ship. Case in point: The DoD report states that its China total "does not include 85 patrol combatants and craft that carry anti-ship cruise missiles (ASCMs)", and appears to also exclude more than 100 non-commissioned support ships operated by the U.S. Military Sealift Command. Other sources may well include both of these categories and more.

Because of these complications, any estimate that includes only a total number of available ships, with no accounting for ship type or condition, will fall far short of telling the full story. In an attempt to better estimate the overall power of a given navy, some analysts turn to tonnage, which is a measure of the amount of water a ship displaces or the amount of cargo it can carry, which are both indirect measurements of a ship's overall mass.
Top 10 Most Powerful Navies in the World (by total tonnage - 2014):

United States - 3,415,893
Russia - 845,739
China - 708,886
Japan - 413,800
United Kingdom - 367,850
France - 319,195
India - 317,725
South Korea - 178,710
Italy - 173,549
Taiwan - 151,662

While these numbers are due for an update, the tale they tell is still meaningful. North Korea falls short of the top 10 thanks to the fact that many of its ships are small, old, "brown-water" craft, meaning they are most effective in rivers, lakes, and coastlines, and perform poorly (if at all) when more than 50 miles from shore. Although North Korea’s navy has more craft than almost any other navy in the world, it still falls far short of becoming a global naval power. On the other hand, countries including the United Kingdom, Japan, and South Korea have risen up the list because although their navies are smaller, they include larger, newer, more capable vessels.

https://twitter.com/CBSEveningNews/status/1629301872615100416

"China has the largest navy in the world but they don't count because they're the wrong kind of warships!" is a pretty funny take especially with the recent think-tankery about how it's possible to win a fight over Taiwan.

gradenko_2000
Oct 5, 2010

HELL SERPENT
Lipstick Apathy

quote:

“Our Navy now is smaller than any time since 1917. The Navy said they needed 313 ships to carry out their mission; we’re now down to 285. … That’s unacceptable to me.”

quote:

“You mentioned the Navy, for example, and that we have fewer ships than we did in 1916,” Obama said. “Well, Governor, we also have fewer horses and bayonets, because the nature of our military’s changed.

“We have these things called aircraft carriers, where planes land on them. We have these ships that go under water, nuclear submarines,” he said.

Obama even evoked a children’s military role-playing board game, “Battleship,” to bash his rival.

“The question is not a game of Battleship, where we’re counting ships,” he said.
Lol at Obama being a patronizing rear end in a top hat while Mitt was right

Filthy Hans
Jun 27, 2008

by Fluffdaddy

(and can't post for 10 years!)

Frosted Flake posted:

"BMW was one of the first brands to introduce artificial engine/exhaust sound into the cabin. Using speakers to play an artificial version of the car’s own engine noise, every modern BMW adds at least a little bit of engine noise to the cabin. This is due to the fact that customers expect quiet cabins but quiet cabins reduce the amount of engine noise you can hear. So if you want to have your cake and eat it, too, you need to use some fake engine noise. However, BMW has gracefully added a new feature to its performance cars and it makes a world of a difference — adjustable engine noise."

:psyduck:

jfc

they claim it's because of cabin insulation but the real reason they had to add "engine noise" is because BMW went from naturally aspirated straight-6 motors that sounded great to turbo-4s and turbo-6s that sound like stifled farts

Cerebral Bore
Apr 21, 2010


Fun Shoe

Danann posted:

https://worldpopulationreview.com/country-rankings/largest-navies-in-the-world

https://twitter.com/CBSEveningNews/status/1629301872615100416

"China has the largest navy in the world but they don't count because they're the wrong kind of warships!" is a pretty funny take especially with the recent think-tankery about how it's possible to win a fight over Taiwan.

strong middle aged dude with receding hairline who constantly brags about his muscle car energy right here

Slim Jim Pickens
Jan 16, 2012
lol that Japan has more tonnage that the UK

Palladium
May 8, 2012

Very Good
✔️✔️✔️✔️

Cerebral Bore posted:

strong middle aged dude with receding hairline who constantly brags about his muscle car energy right here

several $10000 mines later

Regarde Aduck
Oct 19, 2012

c l o u d k i t t e n
Grimey Drawer

Slim Jim Pickens posted:

lol that Japan has more tonnage that the UK

well as it's basically wasted money jokes on Japan

Slavvy
Dec 11, 2012

One thing the Chinese don't have: trillion dollar floating targets

Pidgin Englishman
Apr 30, 2007

If you shoot
you better hit your mark

Slim Jim Pickens posted:

lol that Japan has more tonnage that the UK

Look at their 20th century battle records, the UK haven't had game in centuries next to Japan.

I'm not sure if I'm joking

Ardennes
May 12, 2002

Danann posted:

https://worldpopulationreview.com/country-rankings/largest-navies-in-the-world

https://twitter.com/CBSEveningNews/status/1629301872615100416

"China has the largest navy in the world but they don't count because they're the wrong kind of warships!" is a pretty funny take especially with the recent think-tankery about how it's possible to win a fight over Taiwan.

It's also useless information since between 2014 and now there has been a massive capital ship building program in China. Also, China actually has carriers, 2 are commissioned and another one is fitting out for sea trials.

Filthy Hans
Jun 27, 2008

by Fluffdaddy

(and can't post for 10 years!)

Ardennes posted:

It's also useless information since between 2014 and now there has been a massive capital ship building program in China. Also, China actually has carriers, 2 are commissioned and another one is fitting out for sea trials.

the new one has a catapult launcher so it should be able to launch heavier aircraft than the first 2 carriers

GlassEye-Boy
Jul 12, 2001

Filthy Hans posted:

the new one has a catapult launcher so it should be able to launch heavier aircraft than the first 2 carriers

Will see if they get their EMALS working faster than the US did on the new carrier.

Lostconfused
Oct 1, 2008

Slim Jim Pickens posted:

lol that Japan has more tonnage that the UK

Japan has been building new ships.

The Oldest Man
Jul 28, 2003

gradenko_2000 posted:

Lol at Obama being a patronizing rear end in a top hat while Mitt was right

I have some news about pretty much every one of Obama's 'smartest guy in the room' moments

Motherfucker had poisoned West Wing brain

Cao Ni Ma
May 25, 2010



Danann posted:

https://worldpopulationreview.com/country-rankings/largest-navies-in-the-world

https://twitter.com/CBSEveningNews/status/1629301872615100416

"China has the largest navy in the world but they don't count because they're the wrong kind of warships!" is a pretty funny take especially with the recent think-tankery about how it's possible to win a fight over Taiwan.

Did they tell the readers that the chinese navy is basically built to hard counter carrier battle groups?

gradenko_2000
Oct 5, 2010

HELL SERPENT
Lipstick Apathy

GlassEye-Boy posted:

Will see if they get their EMALS working faster than the US did on the new carrier.

Trump telling the navy to go back to goddamn steam was unequivocally right

GlassEye-Boy
Jul 12, 2001

gradenko_2000 posted:

Trump telling the navy to go back to goddamn steam was unequivocally right

Surprisingly yes

lobster shirt
Jun 14, 2021

GlassEye-Boy posted:

Will see if they get their EMALS working faster than the US did on the new carrier.

given the maintenance bullshit with emals, i think steam catapults are the superior system

Remulak
Jun 8, 2001
I can't count to four.
Yams Fan
Eh eventually electromagnetic will be better than steam and it won’t get there without a lot of work and a lot of Virginia McMansions.

Steam catapults are a mature technology now, but didn’t arrive overnight.

Frosted Flake
Sep 13, 2011

Semper Shitpost Ubique

Remulak posted:

Eh eventually (Science Fiction) will be better than (equipment in service) and it won’t get there, but will buy a lot of Virginia McMansions.

(working equipment) are a mature technology now, but didn’t arrive overnight.

Development began in 1946, and the first operational steam catapult to be installed on a warship was in 1950.

This is what they have said about every boondoggle for the past 30-40 years including chemical lasers, rail guns, Electrothermal-chemical technology, Bulk loaded liquid propellants etc. etc.

The Oldest Man
Jul 28, 2003

Better question is whether heavy fixed-wing carrier aviation is really going to be of strategic importance in the future. Drones (or, rather, fundamentally disposable aircraft) obviously do, and it's hard to imagine a world in which imperialistic forces wouldn't be interested in amphibious warfare, but carriers for big, heavy, manned fixed wing strike and fighter aircraft are big fat targets in a world that includes ballistic anti-ship missiles. Like does it matter whether your aircraft carrier uses the new hotness aircraft launching technology when the billions and billions you've invested in it, its air wing, pilot training, etc. gets pasted by a missile if it comes within striking distance of a hostile coastline?

yellowcar
Feb 14, 2010

i would go even further and say that any surface vessel is basically a big fat target for the cheaper anti-ship ballistic missiles

Frosted Flake
Sep 13, 2011

Semper Shitpost Ubique

yellowcar posted:

i would go even further and say that any surface vessel is basically a big fat target for the cheaper anti-ship ballistic missiles

People have said that about submarines since a U-Boat bagged 3 cruisers in September 1914, aeroplanes since 1941 with Taranto, Pearl Harbour and Force Z, and anti-ship missiles since HMS Zealous in 1967. There are many things you need warships for, and the utility of those roles will keep them in service.

In war, nothing is invulnerable and everything is a target, you just have to do what you can.

mawarannahr
May 21, 2019

yellowcar posted:

i would go even further and say that any surface vessel is basically a big fat target for the cheaper anti-ship ballistic missiles

Your analysis has deep flaws. You hit an issue where the combat modelling within what was a high-level political/strategic wargame used some very simplistic assumptions for speed, rather than doing a realistic analysis of the tactical battle (which can be done, and in considerable detail, but takes a day or two at least to tailor and run for the specific engagement… which makes the turns too slow). Red didn't have to provide any information of how this massive missile armada was being assembled, briefed, positioned, targetted and delivered in a precise simultaneous time-on-target raid; in less than a day; without using radio; let alone the very real problems of mutual interference (how many missiles are trying to use the same radar frequency to detect and home on their targets?)

One version described was that rather than go for a realistic "an AEGIS cruiser can defeat <very many> incoming missiles" representation - which was the job they were specifically designed for, but basically made Red's antiship missiles of very limited value - a much lower value was assumed to overwhelm the defenses if the ship was caught flatfooted at short range, or left confused by a deceptive tactical picture. However, the much simpler and clearer situation of "Bruisers, sah! Faaaarsands of 'em!" where it's clear and obvious that a major attack is underway, and the AEGIS system is turned loose in automatic mode to do what it's designed to do. Again, having found a specific opportunity in the rules, Van Riper was very upset when it was challenged and questioned.

Similarly, the carrier was "destroyed" by suicide-crashing an aircraft onto its deck, using the claim that a small single-engined Cessna would be able to get close enough without being shot down to then make a sudden, destructive kamikaze dive. Again, though, this hits the problem that the aircraft used weighs about a ton at most, and has a VNE (formally 'never exceed velocity', informally 'wings fall off very soon after passing this speed') of about 160 knots. The carrier regularly survives twenty- and thirty-ton aircraft crashing down onto its deck at similar speeds many times a day - it's called "landing" for its air wing - without damage, and historically (much smaller, less well defended, less well armoured) British carriers hit by real kamikazes in 1945 had been back at flying stations within minutes. The model didn't include a rule for this sort of action, so Van Riper claimed "sunk" and then protested unfairness when this was challenged.

Ardennes
May 12, 2002

Frosted Flake posted:

People have said that about submarines since a U-Boat bagged 3 cruisers in September 1914, aeroplanes since 1941 with Taranto, Pearl Harbour and Force Z, and anti-ship missiles since HMS Zealous in 1967. There are many things you need warships for, and the utility of those roles will keep them in service.

In war, nothing is invulnerable and everything is a target, you just have to do what you can.

The solution is probably going to be jam as many missiles on a vessel large enough to stay a decent amount of time at sea, more or less the "super frigate" concept that has been getting more trajection in recent years. I don't know if I want to call it for aircraft carriers yet, they still have range, but again the US has probably placed far too much confidence in its rapidly aging fleet.

Frosted Flake
Sep 13, 2011

Semper Shitpost Ubique

Ardennes posted:

The solution is probably going to be jam as many missiles on a vessel large enough to stay a decent amount of time at sea, more or less the "super frigate" concept that has been getting more trajection in recent years. I don't know if I want to call it for aircraft carriers yet, they still have range, but again the US has probably placed far too much confidence in its rapidly aging fleet.

Well you touched on an issue that comes up at every naval architects convention on warship design. Whatever the ideal surface combatant and related doctrine is, it's not one that the MIC as it exists now can or will produce, so naval planners are stuck trying to fight a war with the last functioning surface fleet that the state was able to deliver before the 2000's. Remember too that the US is trying to equal the Royal Navy at its peak in terms of dominance and force projection without allocating 40% of the national budget or having taxes anywhere near the level they did, let alone direct control over production and procurement. It's a deeply compromised system, and every strategic, operational or tactical problem flows from that because those high level political and socio-economic problems are not up for discussion.

So, considering that alternatives to "the navy of the 80's, give or take ships and aircraft retiring from age" (F-14, A-6, A-7, S-3, OHP etc.) require political will or industrial capacity that can't or won't be mustered, or reliability and functionality that the MIC can't or won't deliver on, they do sort of have to limp along with, to borrow from the first time we saw how the rot had set in, the navy they have, not the navy they might want or wish to have at a later time.

If you rewind the clock, it took the USN a long time to come to grips with the emergence of Soviet nuclear cruise missiles, submarine and air launched cruise missiles, anti-ship missiles, conventional warhead cruise missiles etc. they never satisfactorily solved the problem of the Backfire or Soviet SSBNs launching from bastions in Soviet waters, that that was probably the most functional the USN ever was, aside from 1943-45.

For the navy now to respond to an emerging tactical, operational or strategic problem requires a state that can facilitate that. There are naval designers and maritime architects with all sorts of interesting responses, from a focus on ECM and EW, possibly to the degree that there's a partial return to gun armament as missiles become inoperable, to much larger warships, larger missile batteries, new types of missile and CIWS etc. but where steam catapults went from a brand new theory to operational on a major warship in 4 years, even introducing a new gun into service will probably be a 20 year boondoggle.

Frosted Flake has issued a correction as of 23:16 on Mar 29, 2023

atelier morgan
Mar 11, 2003

super-scientific, ultra-gay

Lipstick Apathy

Frosted Flake posted:

So, considering that alternatives to "the navy of the 80's, give or take ships and aircraft retiring from age, and also unmaintained and covered in rust" (F-14, A-6, A-7, S-3, OHP etc.) require political will or industrial capacity that can't or won't be mustered, or reliability and functionality that the MIC can't or won't deliver on, they do sort of have to limp along with, to borrow from the first time we saw how the rot had set in, the navy they have, not the navy they might want or wish to have at a later time.

Frosted Flake
Sep 13, 2011

Semper Shitpost Ubique


It's loving insane to me that the most basic element of life in a steam navy is being neglected. I mean, the Victorians took it a little far by requiring captains to buy their own paint beyond the provided I think 4 coats a year, and the amount of brass that needed to be polished, the buff and white paint in tropical waters, but letting major warships rust is ...lol.

Centrist Committee
Aug 6, 2019

Frosted Flake posted:

It's loving insane to me that the most basic element of life in a steam navy is being neglected. I mean, the Victorians took it a little far by requiring captains to buy their own paint beyond the provided I think 4 coats a year, and the amount of brass that needed to be polished, the buff and white paint in tropical waters, but letting major warships rust is ...lol.

no one ever got passed up for promotion by reducing maintenance costs, I assume

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Delta-Wye
Sep 29, 2005
imagine leaving your planes out in the rain to get rusty smdh

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