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Old 05-05-17, 10:39 AM   #1
Gargamel
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Default Final Photograph

A US Army photo journalist was on a training mission, with an Afghan phot journalist she was training, and apparently a couple of Afghan soildiers as part of a mortar team It appears they both were trying to get a pic of when the mortar was launched, except that it exploded in the tube instead, killing all four. The photo's each took were both recovered, and released this week by the US army, with the families permission.


http://www.bbc.com/news/world-us-canada-39798988






These are amazing photos, strictly from a technical view. But the reality of what happened to these four soldiers is sobering.
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Old 05-05-17, 01:17 PM   #2
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Sad to think this is the last photo's their families will see of them.
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Old 05-05-17, 04:47 PM   #3
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I don't get it. I thought mortars have a minimum flight time and acceleration force needed before even arming? How can that go off in the tube then?
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Old 05-06-17, 05:49 AM   #4
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Quote:
Originally Posted by eddie View Post
Sad to think this is the last photo's their families will see of them.
True that

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Originally Posted by Schroeder View Post
I don't get it. I thought mortars have a minimum flight time and acceleration force needed before even arming? How can that go off in the tube then?
Hence the catastrophic fault/event.
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Old 05-06-17, 03:00 PM   #5
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I don't get it. I thought mortars have a minimum flight time and acceleration force needed before even arming? How can that go off in the tube then?
Correct, but incomplete

For the mortar's fusing to initiate the booster, you are correct, there needs to be a specific amount of movement before the fuse is armed.

However, in this instance, the fuse was not what initiated the booster. From the imagery, it is not clear that the mortar body actually exploded in the usual manner. What may have happened is that gun tube exploded because of the propellant not being able to be vented. This can happen if the mortar projectile itself becomes stuck in the tube.

This can also happen if too much propellant or damaged propellant is used.

The propellant burns, the gases expand, and having no way to vent through the top of the gun tube, as usual, there is a mechanical explosion with lots of heat, lots of pressure, and lots of fragments. This mechanical explosion can, but rarely does, cause a propagation into the more sensitive booster charge inside the mortar projectile itself.

Once that goes, the explosive main charge will function as designed.

This may have been, unfortunately, one of those times where propagation occurred.

Military actions, even in training, can be hazardous.
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Old 05-06-17, 05:10 PM   #6
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Thanks Platapus.
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Old 10-06-24, 09:21 AM   #7
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...in looking up why Gargamel has been scarce of late, (I'll PM him later)I came across this thread of his...and can only reflect upon the old expression: "hoist with his own petard!"...from Shakespeare's Hamlet.
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Old 10-12-24, 02:44 PM   #8
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^ He posted on my birthday thread last month...
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Old 10-12-24, 10:36 PM   #9
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well...in looking at his "last activity & posts' (12/22) and your birthday thred, I'm not seeing him.
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Old 10-12-24, 10:59 PM   #10
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So tragic, so sad!
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Old 10-13-24, 06:40 AM   #11
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Quote:
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^ He posted on my birthday thread last month...
Afraid not matey and according to my records his last activity was 12-08-22 11:47 PM
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Old 10-13-24, 10:26 AM   #12
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Afraid not matey and according to my records his last activity was 12-08-22 11:47 PM
Of course you're right - somehow I was confusing him with Gorpet. Do you think maybe the Smurfs carried him off?
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Old 10-13-24, 10:33 AM   #13
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Quote:
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Of course you're right - somehow I was confusing him with Gorpet. Do you think maybe the Smurfs carried him off?
GT probably made him lose the will to live
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Old 10-14-24, 11:08 AM   #14
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Hehehehe…. Thanks AK for the PM. I’m always meaning to stick my nose in, but never get to it. Saw a Bernard reference the other day, and the SO couldn’t figure out what I was laughing at.
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Old 10-14-24, 11:47 AM   #15
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Default Wecome back!

Gargamel !...those "U R overdue from patrol" PM's occasionally werke!
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Last edited by Aktungbby; 10-14-24 at 12:04 PM.
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