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2. Archer's paradox - Wikipedia

   en.wikipedia.org/wiki/Archer's_paradox

   The Archery Trade Association (ATA) (formerly the Archery Manufacturers and Merchants Organization (AMO)) static spine test method hangs a 2-pound (0.91 kg) weight from the center of a 26-inch (0.66 m) suspended section of the arrow shaft.

3. Arrow - Wikipedia

   en.wikipedia.org/wiki/Arrow

   Traditional target arrow (top) and replica medieval arrow (bottom) Modern arrow with plastic fletchings and nock An arrow is a fin-stabilized projectile launched by a bow.A typical arrow usually consists of a long, stiff, straight shaft with a weighty (and usually sharp and pointed) arrowhead attached to the front end, multiple fin-like stabilizers called fletchings mounted near the rear, and ...

4. Fletching - Wikipedia

   en.wikipedia.org/wiki/Fletching

   Slow motion cameras show the arrow does not begin to spin until it is well past the riser (centre section of the bow), and the most important point is to have consistency in fletching. Shooting a feathered arrow with a bow with a riser shelf, instead of a plastic vane, is wiser since the feathers will compress and flatten while coming off the bow.

5. Compound bow - Wikipedia

   en.wikipedia.org/wiki/Compound_bow

   Most arrows in use today are of the carbon fiber variety. An important distinction arrow-wise between recurve bows and compound bows is that of arrow spine. Compound bows and target recurve bows with fully center-shot cutaway risers tend to be very forgiving in regard to spine selection.

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   Discover the latest breaking news in the U.S. and around the world — politics, weather, entertainment, lifestyle, finance, sports and much more.

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8. Armour-piercing fin-stabilized discarding sabot - Wikipedia

   en.wikipedia.org/wiki/Armour-piercing_fin...

   Adding fins to the base of the round like the fletching of an arrow instead gives the round its stability in flight. [ 2 ] The spin from standard rifling decreases the performance of these rounds (rifling adds friction and converts some of the linear kinetic energy to rotational kinetic energy, thus decreasing the round's velocity, range and ...

9. External ballistics - Wikipedia

   en.wikipedia.org/wiki/External_ballistics

   Presented C d data can not be simply used for every gun-ammunition combination, since it was measured for the barrels, rotational (spin) velocities and ammunition lots the Lapua testers used during their test firings. Variables like differences in rifling (number of grooves, depth, width and other dimensional properties), twist rates and/or ...