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gatorfan's picture
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Location: Chula Vista, CA
Joined: 10/01/2010
Posts: 465
Straight vanes or helical?

I had an unfortunate mishap a couple of weeks ago in that I hit a buck and wasn't able to find it (long story, still bummed) and when I posted the story on one of my local forums, one of the guys suggested that I should put a helical on my fletching in order to increase accuracy.  Although I don't attribute the lost buck to inaccuracy (it was just over 20 yards and I split fletching and arrows at that range when I practice), it did get me thinking about putting a helical on my fletching.

The more I think about it though, I keep asking myself what affect a spinning arrow with a fixed head would have on penetration.  I just can't help but think that if a fixed head is spinning when it hits an animal, if the exposed blades are spinning on impact, wouldn't it slow the arrow down when the spinning blades hit the animal?  The energy from the spinning action would come to a sudden stop for the most part.....right?

Since I've never had any experience shooting anything except straight vanes, I am looking to hear from any of you that have experience with both straight and helical vanes.  Did you notice any difference in penetration?

 Edit:

OK, I was just uploading a couple of pictures to one of my albums and I noticed a picture of my bow from several years ago that actually has an arrow on it with helical.  I can't remember when I changed to straight vanes now....

I buy my arrows in bulk with the vanes on them and I just cut and assemble them myself so depending on my pending decission, I might invest in a fletching rig and start ordering them bare.

GooseHunter Jr's picture
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Location: Colorado
Joined: 09/28/2005
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As far as penetration goes I

As far as penetration goes I do not think you would find muych difference.  I use a slight helical on my blazer vanes and the one thing it did fior me was make me more consistent.  As far a penetration would go I would have to ask you how much your arrows weigh?  Too light and arrow and it will effect you KE and thus your penetration.  I ask but I am sure you had sharp broadheads?  Also were you shooting a mechanical BH or a fixed blade...not that matter I am just curious.  IMO I still believe that arrow weight is a big factor in penetration.  I shoot the Easton Full metal jackets with a 100 grain BH and they weigh 460 grains....the hit like a truck and make a pretty good whack sound when they hit something.

gatorfan's picture
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Location: Chula Vista, CA
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Posts: 465
Thanks for the response! 

Thanks for the response!  It's been so long since I have been to the bow shop, I can't remember exactly what my arrows weigh.  I am shooting GT Hunter XT 7595 cut to 29" tipped with 100 grn SlickTrick Standards and my DW is set at 65#.  I do remember weighing them at the shop when I decided on this combination and it seemed like a good match.  I think I'll give the helical a try in the off season and see if it helps!

 

Thanks again!

GooseHunter Jr's picture
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Location: Colorado
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 do not know excatly what

 do not know excatly what that arrow weighs per inch but by reading you setup and that i sed to shoot the same arrow in 6075..I would venture to guess that your arrows weigh right around the 400 grains area so that should be pleny heavy enough.  Try the Helical...you will notice some difference.  I had to adust my sights slightly...only because I think it made m e more consistent.

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