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Post by joe_meadmaker on Mar 30, 2021 13:19:31 GMT
I'm into slings just as much as swords (probably a bit more to be honest). For a while I've been curious about the impact of a sling projectile on a shield. At this point I've made a few videos on this. Not anything scientific, just a little playing around. I am somewhat limited because I need to act as the slinger as well as the shield bearer. I thought some folks here might enjoy this. There are some nice shield impacts. Slinging - Ice vs. Shield: Slinging - Pumpkin vs. Shield: Slinging - Ice vs. Shield: Frontal Attack (this one uses a pitchback net)
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pgandy
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Post by pgandy on Mar 30, 2021 15:46:44 GMT
Thanks for sharing. That was interesting. I love your playground although I'd probably feel differently come grass cutting time.
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Post by joe_meadmaker on Mar 30, 2021 23:35:36 GMT
Ha! Yep, I have just a bit over an acre. Mowing is usually about a three hour chore, even with a lawn tractor. It's not too bad though as long as I don't let the grass get too high.
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Post by Murffy on Mar 31, 2021 14:40:46 GMT
Amusing video. I'm not clear on the point. Does a falling projectile simulate the striking power of a sling projectile?
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Post by joe_meadmaker on Mar 31, 2021 19:58:19 GMT
Hi Murffy. The short answer is yes. The long answer is yes, but it would be a slow moving projectile. I pulled up the original recording of the first video and did some frame counts. It looks like the ice balls were traveling somewhere in the neighborhood of 20 m/s at shield impact. Most slingers will be able to throw faster than that. And some quite a bit faster than that.
I am limited because a person cannot throw (straight) up as fast as throwing forward. There is too much body movement lost in the motion.
Another thing to keep in mind is the projectile itself. It's not just the mass that's important, but also structural stability. The ice balls shatter on impact. So a lot of the force is lost. The pumpkins were closer to a real projectile because most of them held together for multiple impacts. This was a contributing factor to their larger impact force, in addition to them being heavier.
The point of this activity (other than to have some fun) was just curiosity. Even with the impact being much weaker than what someone could expect to encounter on a battle field, I wanted to experience what it felt like. I'm planning some more experiments along this line. Soon I'm going to be doing some tests to see if I can take this to another level while still remaining as safe as possible.
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Post by Murffy on Mar 31, 2021 21:13:29 GMT
I wonder if you could mount a shield on something flexible to simulate a person holding it.
The ancients often used lead bullets that, I believe, were oblong and about the size of .50 flintlock ball. I suspect one of those wielded by an expert slinger might punch through a shield, at short range anyway.
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Post by joe_meadmaker on Mar 31, 2021 22:10:10 GMT
Your thinking is pretty much inline with mine. Although for testing I'm just planning to use boards (at least initially). Way cheaper and easier to work with than a completed shield. But as you mentioned, some of the larger and denser projectiles could have possibly caused some problems when put up against shields and armour. Here's a pretty large one: www.britishmuseum.org/collection/object/G_1865-0720-106.
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Post by Sir Thorfinn on Apr 1, 2021 13:51:44 GMT
I think Tod Cutler did a sling video of him punching thru plywood with sling stones. Its on YouTube somewhere...
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pgandy
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Post by pgandy on Apr 1, 2021 15:31:59 GMT
I found one with him slinging lead (3 g?) through ½” flake board but failed with ½” birch plywood. I failed to find the video the second time.
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Post by joe_meadmaker on Apr 1, 2021 18:14:25 GMT
I've seen Todd's videos. What I would like to do is a similar concept, but covering some other aspects and with a different goal in mind.
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Post by Murffy on Apr 2, 2021 1:26:31 GMT
I'm curious to know how your project goes.
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Post by joe_meadmaker on Apr 2, 2021 14:51:06 GMT
Thanks! I appreciate the interest.
I'll be posting everything on YouTube, so I can definitely drop the links here as I go. At the the moment I have three videos (of testing) planned. There is also a fourth I want to do (which is the point of the whole thing), but I'll need to see the results from the others before proceeding. All this should be happening over the next month or two.
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Post by joe_meadmaker on Dec 6, 2021 18:22:49 GMT
It took a long time to get to this, but I finally reached the point I was comfortable doing some shield and stone tests. This was quite an experience.
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Post by Sir Thorfinn on Dec 6, 2021 21:12:47 GMT
So many things! Shield: at 14 lbs, it will absorb a LOT of force without a rock punching thru the way you made it. So, is it me, or were you being a big kid catching lawn darts? As an old time SCA member, who has taken a 3lb ballista bolt to the head, please put on a face shield of some sort. It might break your nose, but that is far better than a facial fracture. Also...where do you live? That looks a lot like rural Ohio...
And last but not least...I WANT TO PLAY TOO! That looked like a lot of fun.
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Post by joe_meadmaker on Dec 6, 2021 21:43:43 GMT
It is an absolute blast!
That was the exact reasoning for a big heavy shield. So it would cover me up, and absorb most of the impact force.
I did consider a helmet with a full face guard. I ultimately decided against it so I could keep my vision completely open. Whether that trade off was worth the additional risk, I can't say for certain. But that was the reasoning behind it.
And damn! You've got the location really close. I'm in western PA. About a half hour drive north of Pittsburgh.
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Post by Sir Thorfinn on Dec 7, 2021 14:59:23 GMT
So...you are close to where the SCA does Pennsic...got it
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Post by wstalcup on Dec 28, 2021 16:02:37 GMT
very cool videos! makes me want to try it.. although my videos would probably end with a call to 911.. LOL
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Post by Sir Thorfinn on Dec 28, 2021 16:57:33 GMT
very cool videos! makes me want to try it.. although my videos would probably end with a call to 911.. LOL That's why I'd do it with Bacon balls...then you have a reason to catch them in your teeth...
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Post by joe_meadmaker on Dec 28, 2021 19:56:10 GMT
very cool videos! makes me want to try it.. although my videos would probably end with a call to 911.. LOL Thanks! If you do try it, definitely start with something safe, like tennis balls. Or bacon balls. ;)
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Post by karmasoft on Feb 7, 2022 20:58:14 GMT
To the December 5 test --
Just awesome stuff, super fun to watch - the youtuber who commented, "thanks for taking one for the team," was spot-on.
Shield is killer - especially the caveman drawing (slinger-guy, lol).
How high does the stone go?
At 15 minute mark, that object falling in slo-mo... looks super deadly.
Did you have any soreness in your arm later?
Do you think a convex shield would absorb more force?
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