Bowhunting Magazine and Archery Tips » arrow speed http://www.edersbow.com edersbow.com is a free online bowhunting magazine filled with Archery Tips bowhunting tips and links to bow hunting equipment and archery and bowhunting product reviews. Fri, 20 May 2011 16:07:13 +0000 en hourly 1 http://wordpress.org/?v=3.1.2 Arrow Speed and Draw Weight http://www.edersbow.com/arrow-speed-and-draw-weight/ http://www.edersbow.com/arrow-speed-and-draw-weight/#comments Fri, 01 May 2009 17:29:04 +0000 David http://edersbow.com/?p=368 Question:
Could you please tell me roughly how much speed each additional pound of draw weight generates in fps?

Answer:
Roughly two fps per pound for small changes in the 10 pound range. However, if you turn your poundage way down on your bow you will lose some pre-stress in the limbs and the result will be a greater loss of speed than if you were shooting the same poundage with the limbs bottomed. This is because the shape of the force vs. draw curve is somewhat a function of limb pre-stress.

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A bow with the limbs cranked out will not come up to poundage as quickly at the start of the draw. Also, a bow with the limbs bottomed will have a slightly lower brace height which also makes it faster compared to a higher poundage bow with the limbs backed out to achieve the same draw force. In other words, it is best to get a bow that maxes out as closely as possible to your desired draw force.

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