Daily Dose of Splodey

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10 thoughts on “Daily Dose of Splodey”

  1. Holy crap. Almost bit my tongue watching that.

    So do any of you military folk know how far away that was? That looked dang close…

  2. Hard to tell from the clip, but judging from the delay (I used a stopwatch and got a delay of just over half a second between light and sound) I’d estimate just over 500 feet. Seeing the effects of the shock wave, it was a lot closer than I would have liked to be.

    Such estimates, however, need to be taken with a grain of salt as you are approaching the limits of human reaction on timing such events. Also, I used 1100fps which the speed of sound at standard temp and pressure (68 deg F and 29.92 in Hg). Elevations in AFG are often 4-5000 feet, and I don’t know what teh elevation is. Still, I would expect the estimate to not be all that far off.

  3. 500 feet is close… that’s not even two football field lengths.

    So, that was a vibration from the shock wave, huh? I wondered whether it was a shock wave or just camera movement from an unsteady grip on the camera.

    Thanks, Quartermaster.

  4. I got roughly the same distance.

    IIRC, anything within 600 yards for artillery is “Danger Close” and troops really need to duck and cover. I would presume it’s even further for JDAMs and other aerial weapons.

    1. For any air-dropped bombs, they try and clear ground forces out to 2k, if possible, though that is just overkill. We did a fire coordination exercise on Fort Stewart once, including a B52 pass with multiple dumb 500 lb bombs impacting at about 1500m, which was pretty impressive, though nothing like the video! I have been within about 150 meters of a Hellfire impact, though that is substantially less oomph than a JDAM. I was mounted in a Bradley at the time and the worst ever missed video due to operator headspace and timing issues.

  5. So. Two football fields. Arghhhh!

    Well, at least the guy at the camera was behind that wall… kinda-sorta.

    1. No, Ma’am. Danger Close is SIX football fields.

      Admittedly, your chances of getting hit by shrapnel at that range are awfully slim, but why be the idiot that gets hit by friendly fire?

  6. Duh. Yea. Right.


    I blame my math error on doing too many things at once.

    …like doing HHD for Mare, blogging, FaceChimping, and watching the Food Network.

  7. IN the arty section of OCS we were told danger close was 500 meters. That comes to just a little less than 547 yards. A football field is actually 120 yards as the end zones are each 10 yards.

    My pubs from OCS were burned in a house fire, so I have no way of knowing if I’m misremembering from that long ago time in 1985.

    1. Danger close for mortars and artillery has always been 600m, and with naval gunfire, it starts getting to larger ranges.

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