Arrow Build. Vanes?

[woodsdog2]

Didn't someone along the way say that feathers are noisier than vanes? Just wondering for my own edification since I'm about to place an order.

Red Beard, in answer to your question about the noise of feather fletches vs. vanes, everything else being equal (size of the fletching, amount of helical, height of the fletching etc.) feathers are noisier in flight than vanes in my experience. However, vanes which are longer, higher, fletched at a greater helical etc.) may be "louder" in flight than smaller feathers. Ashby recommends diminutive feathers, fletched straight with a "turbulator" (sp?) in EFOC and UEFOC arrow builds because the high FOC pulls the arrow like a weighted dart towards the target with minimal paradox. He goes with the small feathers because he wants to ensure the lightest nock end of the arrow. However, he fletches straight (to minimize in flight noise) and more-so because the helical twist is completely unnecessary with the EFOC/ UEFOC arrow builds. In other words, the helical fletching will not add appreciably to stabilizing the arrow so why slow it down any more by adding helical to it.

 

[BTaylor]

DUDE! Had another cup of coffee and thought about this again. This is why I was having so much trouble tuning my bow!

A bit of history: Frustrated with the marginal performance I've had for the past year out of my proshop "tuned" bow, I began tuning my own bow a month or two ago with @Gamover06 's help. He urged me to go to a lower deflection but I wanted to stick with my current Carbon Express Maxima BLU RZ 250 arrows (yes, actually a .400 spine) because I had so many of them and they seem to be within spine spec for DL/DW (based on Carbon Express' spec calculations). I added 300gr to the front of them and was COMPLETELY BAFFLED as to why they were showing symptoms of being over-spined according to Easton's guide (thanks @Weldabeast). I eventually gave up on the Carbon Express' altogether and began testing with the .350s I mentioned above and had great results with that same 300gr up front. It was really confusing that the .350s tuned when the .400s showed over-spined.

…… the RZ 250s cut at 26 1/8" weren't really a .400 spine!

No they were considerably stiffer than 400.

 

[Red Beard]

No they were considerably stiffer than 400.

Is there some kind of calculation that could be run to figure out what they are?

Or is there someone with a spine tester that I could mail one to in order to figure it out? It would be interesting to see what they are.

 

[BTaylor]

Is there some kind of calculation that could be run to figure out what they are?

Or is there someone with a spine tester that I could mail one to in order to figure it out? It would be interesting to see what they are.

There seems to be a math formula for durned near everything so if there's not a calculation out there already, I assume there could be. Some bow shops have spine testers and a good many traditional archers either have store bought or DIY versions. I built one years ago but repurposed the materials year before last.

 

[BTaylor]

Is there some kind of calculation that could be run to figure out what they are?

Or is there someone with a spine tester that I could mail one to in order to figure it out? It would be interesting to see what they are.

Maybe someone else will know the answer to this but I guess the online arrow calculators have that math built into them because they allow you to set arrow length less than 28" and they are generally pretty close whether they indicate optimal or weak or stiff. Dont remember if they actually show the static spine if given a less than 28" parameter. maybe someone with OT2 can answer that.

 

[Weldabeast]

Feathers are noisier than vanes to my ears.... you don't need to helical fletch feathers because of the natural curve of the feather. I don't know 100% but I would think the more helical angle put on feathers the noisier they would become

 

[Weisman125]

Am running an Easton axis 340 as well with a 75 grain brass insert and 100 grain g5 strickers, with the 3 inch heat vanes. They seem to shoot like practice points up to 40yrds haven't shot a whole lot past that as far FOC there like 16.5%. You may have a hard time destroying them there a pretty tuff arrow in my opinion.

Do you run the heat vanes in a 3 or 4 fletch? I shot strikers for a year and wasn't super impressed with their flight with blazers in 3 fletch. I've shot Axis arrows for somewhere around 8 years. Love them. You're right, they are tough to break.

 

[YotaboyPatrick]

Do you run the heat vanes in a 3 or 4 fletch? I shot strikers for a year and wasn't super impressed with their flight with blazers in 3 fletch. I've shot Axis arrows for somewhere around 8 years. Love them. You're right, they are tough to break.

I fletched them in a three fletch. I'm fairly new to shooting fixed heads, and have not tested that set up with others, so therefore I do not know how much better or worse they are. I did work on my bow and arrows all summer to get it perfectly paper tuned tho. Because I saw a big difference before and after I got it all shooting straight.

 

[Red Beard]

So sorry I've taken this thread off course. But... take a look at the article below. Very good info regarding spine deflections.

Carbon Arrow Spine Charts & Deflection Data, Research Guide | Chapter 2

www.huntersfriend.com

 

[weekender21]

Is there some kind of calculation that could be run to figure out what they are?

Or is there someone with a spine tester that I could mail one to in order to figure it out? It would be interesting to see what they are.

I have one. Shafts vary based in spine even arrow to arrow more than you’d think.


Sent from my iPhone using Tapatalk

 

[Weldabeast]

Straight fletch right wing feather.....helical is built into the feather from mother nature



sorry @cutty .....I put mine on crooked so we don't get them confused