Its because its at a certain angle for te nock and it shoots better i went on many sites and they where all wrong so i asked my teacher and this is the correct answer your welcome for me writting this and informing you
well it's the same as normal archery but the archers have a physical disability other wise nothing is different... :P :)
different kinds of steering gear
Olympic archery only uses recurves.
There are some things to know about wind vanes. Don't get the wind vane confused with an anemometer because the anemometer measures wind speed. Though they are both used to the wind they have different functions. The wind vane is used for the wind direction, however, the wind vane is also called the weather vane.
You can find archery sights at multiple different websites. One good resource may be Petersen's Bowhunting. Hunter's Friend also has an archery sight guide.
Vane Featherston's birth name is Vane Featherstonhaugh.
Vane
Vane, as in a weather vane
Charles vane
The weather vane, also known as the wind vane, tells you which direction the wind is blowing.
The word vane could be in a sentence like, "i have a big vane"
Wind vane