AuthorTopic: 🏹 Primitive Weapons: Spear Thrower  (Read 1995 times)

Offline Palloy

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🏹 Primitive Weapons: Spear Thrower
« on: October 15, 2016, 10:16:07 PM »
https://www.youtube.com/embed/rrlr02YDr5A

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Published on Oct 7, 2016

A spear thrower is a simple tool that allows the user to throw a spear further than by hand alone. It is a small length of wood with a hook in the end that fits into a notch in the back of the spear. The extra power and distance gained by the thrower is due to the extra leverage it gives.

I cut a small branch with a minor branch coming off the side. I shaped the minor branch into a spur to fit into the end of the spear. The thrower was about 65 cm long.

For the spear, I cut a thin sapling approximately 2 m long and about 1.5 cm thick. I carved a cup in the end of the spear for the spur to fit into. Then I bound the back of the spear with bark fiber to prevent the wood from splitting. The head of the spear was simply charred in the fire and scrapped against a rock to sharpen it (during practice the head regularly breaks so only a sharpened tip is used to save work).

To use the spear thrower, the spur of the thrower is inserted into the cup of the spear. The spear and thrower are held at about shoulder height. The thrower is quickly flicked forward and the spear propelled towards the target. As the spear leaves the thrower it bends slightly storing energy until it jumps of the spur. During flight, the flexible spear wobbles and oscillates paradoxically giving the spear some stability in flight.

The throws in the video show what can be done in one afternoon of practice (my arm got sore and I wanted to start on other projects). I hit the target a few times at a distance 15 m. It is more powerful than a spear thrown by hand alone but is difficult to learn. The spear I made could have been a fraction lighter and so would have greater speed. Another improvement would be to add flights to the spear so it would be more accurate and fly straighter (like an atlatl).

The extra energy gained from a Woomera's (Australian spear thrower) use has been calculated as 4 times that of compound bow (Wikipedia). It's easy to make (this took less than a day) but requires lots of training to become accurate.
« Last Edit: June 18, 2019, 06:54:24 AM by RE »
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Offline RE

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Re: Primitive Technology: Spear Thrower
« Reply #1 on: October 16, 2016, 01:52:03 AM »
Have you tried making one?
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Offline Palloy

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Re: Primitive Technology: Spear Thrower
« Reply #2 on: October 16, 2016, 07:01:01 AM »
No, not yet.  But I shall keep my eyes open for a straight piece of wood for the spear.  I'm still looking for wood for the heavier spear for the spear-heads I bought.  I've been trimming side branches off saplings, trying to encourage them to grow tall and straight, but they don't seem to understand.
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Offline Palloy

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Re: Primitive Technology: Spear Thrower
« Reply #3 on: October 26, 2016, 02:47:07 PM »
I went back to a young tree I had been assessing for spear-worthiness, and found I had already ring-barked it.  So I harvested it, cut out the spear portion (71 inches), and planed it down to make the basic pole.  It's still got a lot of drying out to do.



The plane is a lovely tool.  Clamp the pole in wooden jaws at the appropriate height, and use two hands on the plane.  You could work for ages and not get tired.  Makes you realise just how not straight the pole is, with local bumps and dips.  As the outer wood is resinous, clean the tool with kerosene before it hardens.

This spear is for defending/attacking feral pigs while you hold it - you could throw it I suppose, but not very far, as it is a hardwood and very heavy.  The section of tree from below the spear section should make a good club, and the section from above it might make a reasonable dart for the spear-thrower.
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Offline Petty Tyrant

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Re: Primitive Technology: Spear Thrower
« Reply #4 on: October 26, 2016, 03:18:55 PM »
Well lets see it then? Come on lad, we dont got all day.
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Offline azozeo

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Re: Primitive Technology: Spear Thrower
« Reply #5 on: October 26, 2016, 03:56:14 PM »
Well lets see it then? Come on lad, we dont got all day.


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I know exactly what you mean. Let me tell you why youíre here. Youíre here because you know something. What you know you canít explain, but you feel it. Youíve felt it your entire life, that thereís something wrong with the world.
You donít know what it is but its there, like a splinter in your mind

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Re: Primitive Technology: Spear Thrower
« Reply #6 on: October 26, 2016, 05:17:56 PM »
I was going to wait until the whole project is finished, but clearly you can't contain your excitement.   :icon_sunny:
So here are the two trees, Syzygium sp., that were growing too close together, so one harvested,
and the spear planed, with the club unprocessed as yet.

   
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Offline azozeo

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Re: Primitive Technology: Spear Thrower
« Reply #7 on: October 26, 2016, 05:29:10 PM »
Thank you Palloy.
Gold star on your forehead.   :icon_sunny:
Thanks for sharing   :emthup:   :emthup:
I know exactly what you mean. Let me tell you why youíre here. Youíre here because you know something. What you know you canít explain, but you feel it. Youíve felt it your entire life, that thereís something wrong with the world.
You donít know what it is but its there, like a splinter in your mind

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« Reply #8 on: June 18, 2019, 06:52:28 AM »
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🏹 HEAVY Medieval 1250lbs Windlass Crossbow
« Reply #9 on: June 27, 2019, 03:50:18 AM »
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« Reply #10 on: July 29, 2019, 09:11:20 AM »
I gotta Prep Up with some Kevlar.  This shit looks too heavy for Cripples.  Maybe I could Armor Up my Cripple Cart though? My Chariot!  :icon_sunny:

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RE Races his Chariot after SHTF Day arrives! ;D

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I got plans for an air-powered RPG launcher.  I'm going to use the Oxygen Tank holder that came with the Storage Unit Cripple Cart Tank I just scored.  Also useful for launching Tear Gas Grenades back at the Gestapo.  I have my BBQ Hot Gloves to pick them up with already.

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