New TWA Flight 800 film coming out - Page 67

sts60 · Yesterday, 09:27 AM

Originally Posted by mikegriffith1, elsewhere

… But, in general and generic terms, and realistically speaking, an ICBM most certainly is a type of surface-to-air missile because it is launched from the surface into the air.

Oh, dear Lord, that’s hilarious.

mikegriffith1, on that other board you said you were “undecided” but in another post you mentioned two missiles from Navy vessels.

Can you specify what kinds of missiles were involved, and how many of each kind? Because otherwise you haven’t really defined your claim.

Dread Pirate Roberts · Yesterday, 09:34 AM

Originally Posted by sackett

wrote that is mixing metaphors that have never been mixed before.

He must be shooting craps with about 25 cards left in his bag.

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I AGREE

sackett · Yesterday, 09:49 AM

I just read the G. Keilllor thing and there's not a marble in it.

Or was that the point? ETA: Goddammit, Jay!

Anyway, I have a Real Question: Why are the cavities of shaped charge warheads lined w/ metal, often copper? Or is my layman's knowledge obsolete?

JayUtah · Yesterday, 09:57 AM

Originally Posted by Garrison Keillor

Should a Lutheran play the bassoon? Not if you want to be taken
seriously, I don't think so. The name kind of says it all: bassoon.
It's an instrument that isn't playing with a full deck of marbles.

https://rec.music.classical.guitar.n...rrison-keillor

Do your very best to find the audio recording of this. It's priceless.

JayUtah · Yesterday, 10:12 AM

Originally Posted by sackett

Why are the cavities of shaped charge warheads lined w/ metal, often copper? Or is my layman's knowledge obsolete?

Your knowledge is not at all obsolete. The copper lining is an explosively-formed penetrator (EFP). Cue the 14-year-old's giggle. Strictly speaking, it doesn't need to be there in order for the shaped explosive to create the jet of very hot gases. But it gives those gases something very narrow to propel at hypersonic velocity, in order to penetrate target armor mechanically instead of just thermally and gaseously.

The initial stage of the explosion squashes that cone together to form a long, narrow copper stick. That's the "explosively-formed" part. By geometrically arranging the explosive and the penetrator, you can arrange for it to take on any number of shapes. Other metals besides copper work too, but copper is the most common. The advantage here is that entrainment (dragging something along in a fluid) occurs at the stage when the penetrator is still spread out, and you can generate a lot of kinetic energy in the projectile. Then after it has all that energy, it becomes long and hardened so that it can enter heavily-defended target regions.

Despite its aerodynamic instability, the penetrating power of an EFP generally extends for a greater range than the jet itself, which peters out (as we mentioned) after only a few centimeters. This is its tactical advantage.

sackett · Yesterday, 11:59 AM

So the EFP, being long and of small diameter, has high sectional density. That means it will penetrate as efficiently as possible for a given weight.

After all these decades, I finally make the connection between shaped charges and the more latter-day (cue LDS tut-tutting) EFPs. (It helps to have been brought up a handloader too.) Thankee kindly.

W.D.Clinger · Yesterday, 12:01 PM

Originally Posted by JayUtah

https://rec.music.classical.guitar.n...rrison-keillor

Do your very best to find the audio recording of this. It's priceless.

rmcg, a blast from the past.

(It seems like years since I played an oboe, but it's only been a few decades.)

smartcooky · Yesterday, 01:18 PM

Originally Posted by sts60

Oh, dear Lord, that’s hilarious.

mikegriffith1, on that other board you said you were “undecided” but in another post you mentioned two missiles from Navy vessels.

Can you specify what kinds of missiles were involved, and how many of each kind? Because otherwise you haven’t really defined your claim.

They were Polaris missiles launched from a submarine... after all, they were launched from the surface and went into the air... amrite?

JayUtah · Yesterday, 01:50 PM

Originally Posted by smartcooky

They were Polaris missiles launched from a submarine... after all, they were launched from the surface and went into the air... amrite?

No, it's because all missiles look like poles.

Yesterday, 09:27 AM	#2641
sts60 Illuminator Join Date: Jul 2007 Posts: 4,053	Originally Posted by mikegriffith1, elsewhere … But, in general and generic terms, and realistically speaking, an ICBM most certainly is a type of surface-to-air missile because it is launched from the surface into the air. Oh, dear Lord, that’s hilarious. mikegriffith1, on that other board you said you were “undecided” but in another post you mentioned two missiles from Navy vessels. Can you specify what kinds of missiles were involved, and how many of each kind? Because otherwise you haven’t really defined your claim.
sts60 Illuminator Join Date: Jul 2007 Posts: 4,053

Yesterday, 09:49 AM	#2643
sackett Philosopher Join Date: Aug 2003 Location: Detroit Posts: 8,302	I just read the G. Keilllor thing and there's not a marble in it. Or was that the point? ETA: Goddammit, Jay! Anyway, I have a Real Question: Why are the cavities of shaped charge warheads lined w/ metal, often copper? Or is my layman's knowledge obsolete?
	__________________ If you would learn a man's character, give him authority. If you would ruin a man's character, let him seize power. Last edited by sackett; Yesterday at 11:48 AM. Reason: To add cursing, goddammit!

Yesterday, 10:12 AM	#2645
JayUtah Penultimate Amazing Join Date: Sep 2011 Location: The great American West Posts: 22,411	Originally Posted by sackett Why are the cavities of shaped charge warheads lined w/ metal, often copper? Or is my layman's knowledge obsolete? Your knowledge is not at all obsolete. The copper lining is an explosively-formed penetrator (EFP). Cue the 14-year-old's giggle. Strictly speaking, it doesn't need to be there in order for the shaped explosive to create the jet of very hot gases. But it gives those gases something very narrow to propel at hypersonic velocity, in order to penetrate target armor mechanically instead of just thermally and gaseously. The initial stage of the explosion squashes that cone together to form a long, narrow copper stick. That's the "explosively-formed" part. By geometrically arranging the explosive and the penetrator, you can arrange for it to take on any number of shapes. Other metals besides copper work too, but copper is the most common. The advantage here is that entrainment (dragging something along in a fluid) occurs at the stage when the penetrator is still spread out, and you can generate a lot of kinetic energy in the projectile. Then after it has all that energy, it becomes long and hardened so that it can enter heavily-defended target regions. Despite its aerodynamic instability, the penetrating power of an EFP generally extends for a greater range than the jet itself, which peters out (as we mentioned) after only a few centimeters. This is its tactical advantage.
	Last edited by JayUtah; Yesterday at 10:17 AM.

Yesterday, 11:59 AM	#2646
sackett Philosopher Join Date: Aug 2003 Location: Detroit Posts: 8,302	So the EFP, being long and of small diameter, has high sectional density. That means it will penetrate as efficiently as possible for a given weight. After all these decades, I finally make the connection between shaped charges and the more latter-day (cue LDS tut-tutting) EFPs. (It helps to have been brought up a handloader too.) Thankee kindly.
	__________________ If you would learn a man's character, give him authority. If you would ruin a man's character, let him seize power.

Yesterday, 12:01 PM	#2647
W.D.Clinger Illuminator Join Date: Oct 2009 Posts: 4,809	Originally Posted by JayUtah https://rec.music.classical.guitar.n...rrison-keillor Do your very best to find the audio recording of this. It's priceless. rmcg, a blast from the past. (It seems like years since I played an oboe, but it's only been a few decades.)
W.D.Clinger Illuminator Join Date: Oct 2009 Posts: 4,809

Yesterday, 09:57 AM	#2644
JayUtah Penultimate Amazing Join Date: Sep 2011 Location: The great American West Posts: 22,411	Originally Posted by Garrison Keillor Should a Lutheran play the bassoon? Not if you want to be taken seriously, I don't think so. The name kind of says it all: bassoon. It's an instrument that isn't playing with a full deck of marbles. https://rec.music.classical.guitar.n...rrison-keillor Do your very best to find the audio recording of this. It's priceless.

Yesterday, 01:18 PM	#2648
smartcooky Penultimate Amazing Join Date: Oct 2012 Location: Nelson, New Zealand Posts: 23,075	Originally Posted by sts60 Oh, dear Lord, that’s hilarious. mikegriffith1, on that other board you said you were “undecided” but in another post you mentioned two missiles from Navy vessels. Can you specify what kinds of missiles were involved, and how many of each kind? Because otherwise you haven’t really defined your claim. They were Polaris missiles launched from a submarine... after all, they were launched from the surface and went into the air... amrite?
	__________________ What is Woke? It is a term that means "awakened to the needs of others". It means to be well-informed, thoughtful, compassionate, humble and kind. Woke people are keen to make the world a better, fairer place for everyone, But, unfortunately, it has also become a pejorative used by racists, homophobes and misogynists on the political right, to describe people who possess a fully functional moral compass.

Yesterday, 01:50 PM	#2649
JayUtah Penultimate Amazing Join Date: Sep 2011 Location: The great American West Posts: 22,411	Originally Posted by smartcooky They were Polaris missiles launched from a submarine... after all, they were launched from the surface and went into the air... amrite? No, it's because all missiles look like poles.