Wavy arrowheads

For Discussion concerning the construction and use of arrows and quivers.

Wavy arrowheads

Araverus
Registered User
Joined: 22 Apr 2017, 21:29

31 May 2017, 02:10 #1

I've done some research into arrowsmithing (thanks Archeryrob!) and I find the subject of arrowheads interesting. Since leverage and angle is the main problem, I have encountered two types of heads that fix 1 problem and agggravate the other:

​Teardrop heads: not so affected by leverage, but cutting force possibly reduced

​"Eiffel Tower" heads: Affected by leverage, badly, but one heck ​of a pierce effect.

​Ergo, for best balance of resistance and cutting edge, why not make a wavy head with a basic ratio of 7:3, similar to a kris.
"The best joke? Humans!"
--Lucifer
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Archeryrob
Registered User
Joined: 12 Feb 2003, 04:37

01 Jun 2017, 15:12 #2

I don't think the long pointed heads are the best unless made heavy and then you are throwing spine deflection issue changes. The long thin points are subject to failure when hitting bone. Bodkin points are long and thin, but made for Armour piercing and stout in their thickness.  Long points can curl as I have shown in the broad section. Stuff over 2:1 ratio is thinning the head too much.


A good sharp broadhead or a serrated head or even a stropped head is plenty sharp enough to cut arteries and lungs on a 500 grain arrow. I think you are "thinking" too much. Focus more on balance and being able to spin the arrow on it broadhead. If it can do that it will fly true and punch through a deer.


Here is the arrows I will be hunting with this year. 

Last edited by Archeryrob on 01 Jun 2017, 15:17, edited 3 times in total.
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Araverus
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Joined: 22 Apr 2017, 21:29

01 Jun 2017, 17:51 #3

it's 2 1/3:1 if simplified, I will just throw this out there for future reference.
"The best joke? Humans!"
--Lucifer
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Araverus
Registered User
Joined: 22 Apr 2017, 21:29

01 Jun 2017, 17:52 #4

I'll think about it; just maths background is showing again :P

I'm always trying to innovate; this thread is much like the 24" stave thread I think.
"The best joke? Humans!"
--Lucifer
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Araverus
Registered User
Joined: 22 Apr 2017, 21:29

01 Jun 2017, 18:09 #5

Serrations is close, though... *grins sheepishly*
Not fully designed yet. Hope I don't sound stuck up in this thread.
"The best joke? Humans!"
--Lucifer
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Archeryrob
Registered User
Joined: 12 Feb 2003, 04:37

01 Jun 2017, 19:44 #6

That would cut well, but I would reduce the tip to a triangle and maybe narrow it's width at the base of the tip. You have to consider hiting a rib, the scapula or the front leg. The point would worry me for a curl on bone and if it did you'd loose most of your energy pushing a curled tip. You also might need to square off the back as any rear facing tip could be considered a barb and illegal in many states.

I have no problem with new designs and I am a tinkerer also. I am always looking to redesign something. Have at it and people like me will just give you advice from what we think and our past experiences. 
Last edited by Archeryrob on 01 Jun 2017, 19:47, edited 1 time in total.
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gekitsu
Registered User
Joined: 16 Jul 2012, 16:14

02 Jun 2017, 10:44 #7

araverus, what you’re going for reminds me a lot of saxton pope’s experiments with steel vs. obsidian arrowheads, where he measured deeper penetration (i.e. better cutting ability) from stone arrowheads. sounds like that would be worth reading up on, and then experimenting with translating the stone head’s serrated edge geometry to a steel head. and, of course, trying to figure out whether the higher cost of manufacturing and keeping it sharpened vs. a straight-edged head is worth it.

raphael
“I’ve seen things you people wouldn’t believe. Attack ships on fire off the shoulder of Orion. I’ve watched c-beams glitter in the dark near the Tannhäuser Gate. All those … moments will be lost in time, like tears … in rain.”
—Roy Batty, Blade Runner
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