KE does the work, driving broadheads through hide, muscle and bone. The bigger the game, the more kinetic energy needed. 650 Grains is the heavy bone beginning. Simply stated, kinetic energy is the result of an arrow’s weight and speed. Tweets by @HuntOnly. Kinetic energy, and more specifically, momentum, of a propelled arrow provide the inertia downrange to make an ethical harvest. It will give you some idea about speed and arrow weight. Use the kinetic energy calculator to find out how fast that the same bullet will have to be traveling at to get its energy to 1 J. Kinetic energy is impacted not just by arrow speed, but by arrow weight as well. However, the lighter arrow decreases your kinetic energy. For example, an archer pursuing large game such as elk, moose, caribou, etc. Arrow Efficiency Calculator. Arrow or Bullet Weight (Grains) Arrow or Bullet Velocity (f.p.s.) Any deer species tipping the scales from 125 to 190 pounds on the hoof, and average wild hogs weighing 125 to 175 pounds. Bowhunters should strive to shoot an arrow that optimizes arrow speed and weight to maximize energy. The kinetic energy and momentum of an arrow are both important numbers and concepts to use when understanding the penetration potential of an arrow, which is especially important to bowhunters. Welcome to ArcheryCalculator.com! We saw that a 200 gr. Kinetic stands for consistency, stability and performance, high quality and great designs. Archers can use this calculator to get an approximate idea of how changing the bow from IBO/ATA specifications (30″ draw length, 70 lb. Archery. While most bowhunters pay an awful lot of attention to arrow speed, it’s only one part of the KE equation. ke=M * v2 / 450,240 ke = Kinetic Energy M = mass (weight of arrow in grains) V = velocity in feet per second Call … Consider momentum when bow poundage gets below 60#. You can assume, roughly, that an arrow’s kinetic energy is reduced by around 3-4% for every 10 yards it travels. Here’s an example of determining the kinetic energy of a bow shooting a 400 grain arrow with a 100 grain broadhead at 250 fps: KE= 250 2 x 500 / 450,240 The only way to make an arrow go quicker (any given bow ) is make your arrows lighter. If you try to do all of these calculations by hand, keep in mind what units you actually use! This calculator will estimate the speed of the bow/arrow based on the speed rating of the manufacturer and individual setup of the bow. Kinetic Energy Kinetic Energy is the energy an object has owing to its motion. This form will calculate the kinetic energy of your arrow, even if you don't know your arrow's speed. These are calculated as follows: momentum = A * v. kinetic energy = A *v^2 / 2. Use the following arrow kinetic energy calculator & momentum calculator to estimate Momentum and Kinetic Energy. This site provides archers and bowhunters with some tools to easily calculate important numbers to optimize their archery experience. The heavier an object is, and the faster it’s moving, the greater its kinetic energy. The arrow ballistics calculator below will help you determine your arrow’s vertical drop, speed, kinetic energy and momentum, for up to 70 yards out in 10 yard increments. This site provides archers and bowhunters with some tools to easily calculate important numbers to optimize their archery experience. Let us help you to choose the best bowhunting arrows for you. A lighter arrow will give you a faster flatter arrow flight, and as such is more forgiving of misjudged distance. #1: Kinetic energy drops are fairly predictable. Archery Kinetic Energy/Speed Calculator Welcome to the Kinetic Energy Calculator. When it comes to bowhunting, kinetic energy gets all the love. Momentum =, Archery Calculators: Kinetic Energy, Momentum, Estimate Bow/Arrow Speed, Front of Center (FOC). Kinetic Energy: Calculate: Clear Form: Southern Maryland Waterfowl Season - 2014/2015. Kinetic Energy of Bows and Arrows. kinetic energy at 25ft-lbs. The kinetic energy (KE) of an object is the energy of the object due to its speed and mass. You will need to provide total arrow weight and initial speed for the calculation to be effective, as well as … Arrow FOC Calculator. The KE/DW factor (kinetic energy/draw weight) is useful for comparing bows and checking your numbers. Kinetic energy relies on the grain of the arrows and the speed of the crossbow. The formula for calculating kinetic energy reveals that there are two primary variables – mass and velocity, or in archery terms – arrow weight and arrow speed. For more information on Kinetic Energy and Momentum, please see Among archers, I see and hear a lot of discussions about the kinetic energy (KE) of arrows. Kinetic energy is a factor of weight and speed. Kinetic energy isn't momentum. Take a look at our kinetic energy calculator. //