Forearm mounted hoopack

For those who live in areas where firearms are not an option and those that are smart enough to have a back up.

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JoergS
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Forearm mounted hoopack

Post by JoergS » Sat Sep 15, 2012 11:56 pm

As I am currently investigating the "David sling" concept, I became a member of slinging.org. A great website and forum with a ton of information about that ancient weapon type.

"Curious Aardvark", the admin of that site, suggested I look into a weapon called a "hoopack". It is basically a staff sling with a forked tip. Advantages are less band entanglement and also a slight spin given to the ammo.

Interesting concept for sure!

I made a test device yesterday, basically a forearm mounted short hoopack with adjustable "loop launcher" and a manual loop retainer.

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The adjustable loop launcher allows you to change the angle. This way you can adjust the launch timing, in order to get just the right throwing distance.

The loop retainer makes sure that the loop does not slip of before you want to. You press down the "trigger" when you start the swing towards the target. The loop releases automatically once the hook is in the right position.

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Will see how it shoots! It was already dark when I finished the weapon yesterday.
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Fletch
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Re: Forearm mounted hoopack

Post by Fletch » Sun Sep 16, 2012 12:10 am

Hoopak.... as in the weapon used by kender in dragonlance books?


AWESOME :clap:
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JoergS
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Re: Forearm mounted hoopack

Post by JoergS » Sun Sep 16, 2012 11:42 am

Exactly! Here is the video.

Hitting my catch box with that 60mm steelball, weighing more than 2lb, is utterly satisfying.

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Tetra Grammaton Cleric
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Re: Forearm mounted hoopack

Post by Tetra Grammaton Cleric » Sun Sep 16, 2012 12:02 pm

:shock: :awesome:

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offcamber
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Re: Forearm mounted hoopack

Post by offcamber » Sun Sep 16, 2012 12:19 pm

I always look forward to your new posts. As per usual, great work!

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2now
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Re: Forearm mounted hoopack

Post by 2now » Tue Sep 18, 2012 2:25 am

It looks like in its basically a release control mechanism at this point. but it you made it a foot or two longer, you would get a dramatic increase in power. What do you think?
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JoergS
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Re: Forearm mounted hoopack

Post by JoergS » Tue Sep 18, 2012 3:27 am

Well, I could always make the string longer. But that 60mm steel ball is heavy, at some point it will be tough to get it up to speed.

The device also eliminates wrist movement, making it much easier to hit with it compared to a conventional sling.
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nathat
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Re: Forearm mounted hoopack

Post by nathat » Tue Sep 18, 2012 7:30 am

I was in peru on a mission trip and there were several young kids who were awsome with slings. They were knocking cans off of a wall with no trouble. They would spin it around one complete rotation (more like one and a half I suppose) to build speed, and then release. They kept one finger between the strings to stop it from spinning/tangling, but wouldn't that give you more power if you gave rotational inertia? Correct me if I'm wrong because I don't really know the best way, it is just what I saw.

JoergS
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Re: Forearm mounted hoopack

Post by JoergS » Wed Sep 19, 2012 2:59 am

The rotation can make sense IF you can not reach your top swinging speed without it. This depends on your personal strength, the length of the sling and the weight of the ammo.

My new device is still basically a staff sling. Those have the advantage that it is far easier to be accurate, and you have a lever that increases power, but the wrist is immobilized - so you can't rotate. The so called "Apache" technique I employed in the video is the only choice.
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