Archer's Toolbox

Technical Archery toolbox is a series of Excel spreadsheets to calculate the properties of your bow.  The tool box is organized in steps from bow setup to full trajectory calculations.   Please refer to Technical Discussions for detailed posts on the specific tools along with specific documentation.

The Compound Bow Cam Model provides a good estimate of the draw curve characteristics of your bow.  You may also simulate the bow draw curve of an experimental bow.

Measuring your Bow Draw Data provides experimental details on your specific bow based on measured draw weight.

The bow draw data allows calculation of Arrow Acceleration and Launch Velocity.  This tool will plot the velocity of your arrow from release to nock separation from the bow string.

The launch velocity and aerodynamic drag coefficient of the arrow is best confirmed by direct measurement.   Technical Archery's Arrow Speed Application is a free laptop-based tool to measure arrow speeds by timing arrow flight using the sounds of the bow release and target contact.

Now that you have an idea of your bow performance, calculate the Full Trajectory of your arrow at different distances, arrow mass, and drag.

If you have gotten this far then you are a fully qualified archery geek.  Good for you!  A General Model for Drag provides the details for calculating drag for bullets, arrows, and bird shot.  High-Low Error allows a more detailed analysis of target errors based on errors in estimating target range.

Finally, use the Shooting Error Model to understand why it is much harder to shoot a perfect score than predicted by simple statistics.  

My last two posts explore the geometry of sight pin placement and the effect of bow torque on the shot.


SelectionFile type iconFile nameDescriptionSizeRevisionTimeUser
Ĉ
View Download
  83k v. 1 Aug 25, 2012, 10:29 AM Whitney King
Ĉ
View Download
  20k v. 1 Aug 25, 2012, 10:29 AM Whitney King
Ĉ
View Download
  776k v. 1 Aug 25, 2012, 10:28 AM Whitney King
Ĉ
View Download
  47k v. 1 Aug 25, 2012, 10:28 AM Whitney King
Ĉ
View Download
  79k v. 1 Aug 25, 2012, 10:29 AM Whitney King
Ĉ
View Download
  783k v. 1 Aug 25, 2012, 10:28 AM Whitney King
Ĉ
View Download
  845k v. 1 Aug 25, 2012, 10:29 AM Whitney King
Ĉ
View Download
  805k v. 1 Aug 25, 2012, 10:29 AM Whitney King
Ĉ
View Download
  512k v. 2 Oct 10, 2012, 7:28 PM Whitney King
Ĉ
View Download
  826k v. 1 Aug 20, 2013, 3:58 PM Whitney King
Ĉ
View Download
  810k v. 1 Aug 25, 2012, 10:29 AM Whitney King
Ĉ
View Download
  784k v. 1 Jan 29, 2013, 8:09 PM Whitney King