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Question on fletching theory

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Badger:
    Suppose you had a stiff fletching .01 thick and 3/8" high X 2" long, it seems it would cause little drag as long as the arrow was going straight but have good influence anytime it wandered off straight and bring it back to straight quickly assuming good point weight. I think I have been making my fletching to short in height and length and too thick. It would seem we only need drag when things aren't going well otherwise. 

willie:

--- Quote ---It would seem we only need drag when things aren't going well otherwise.
--- End quote ---

from working with boats and rudders quite a bit, I would say you need enough steerage to keep thing going well at the lowest speed of the trajectory.

avcase:
According to the rocket builders, the most efficient vane is rather tall and short. The most efficient cross-section is an airfoil because the job of the vane is to provide a counteracting lift. An airfoil does this very efficiently as long as it isn’t misaligned so far that it stalls.

But, with natural materials, this isn’t so easy to do, especially using feathers. I think the Turkish Flight arrow fletch profile is a pretty good compromise where feathers are concerned. It would require a very stiff feather to go much taller and shorter without fluttering.

Alan

Badger:
   I am really not sure when I started the post exactly what I was trying to say but basically I have always thought of the fletches as something I wanted as little of as possible. I am now starting to think studying them might put them to better use. I don't believe the short low fletches can get the arrow to respond as quickly as needed. Light arrows will slow extremely rapidly when they are not in line.

DC:
Has anyone ever tried a different method instead of fletching? I don't know, maybe dragging a ball of fluff or something. Also once the arrow flight has stabilised, what can happen to disturb the flight?

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