Release Angle

The Release Angle is the angle that the velocity vector of the projectile reaches before the projectile is released.

Release Angle

Note: The angle of the velocity of the projectile is not quite the same as the angle of a vector perpendicular to the sling. The angle perpendicular to the sling is the velocity of the projectile relative to the end of the arm, but the end of the arm is also moving, so the velocity of the projectile will be the vector sum of the velocity at the end of the arm and the relative velocity of the projectile.

Relative Velocities

The projectile typically goes the farthest if the release angle is between 35deg and 40deg.

ft
ft
ft
ft
ft

lb
lb·ft²
ft

lb
lb·ft²

lb
ft
ft/s

°

Link to save this trebuchet

Welcome to

VirtualTrebuchet 2.0

VirtualTrebuchet is a web based trebuchet simulator that will allow you to quickly evaluate different trebuchet configurations.

  1. To begin, enter the parameters of your trebuchet in the input boxes.
  2. Next, press the "Simulate" button located under the inputs.
  3. Finally, watch your trebuchet go.

Any questions? Read the documentation or contact us.