Modifying the Weight of your Boomerang

Adding weight to a boomerang is generally done to increase momentum, which results in a longer distance and greater wind stability. The easiest way to add weights to your boomerang is to tape coins, or small pieces of lead to the bottom of the wing(s). The following rules of thumb should be taken into consideration when trying to modify the weight of your boomerang:

Twisting the Arms of you Boomerang

Twisting the arms of your boomerang, either clockwise or counter-clockwise, alters the angle of attack, which is the angle at which the leading-edge cuts through the oncoming air-flow. Twisting the arm counter-clockwise will add positive angle of attack to the wing, whereas twisting clockwise adds negative angle of attack. Tuning your boomerang by twisting is used to adjust: spin-rate and wind stability, distance, lie-down, and the type of trajectory.

Bending your Boomerang

When you bend the arms of your boomerang either up or downwards, you are adjusting the dihedral, which is the angle above or below the straight/neutral position. In general, bending the arms will modify the distance, hover, and trajectory of your boomerang. Remember even a few degress in change will alter the flight of your boomerang significantly.

Modifications

Tuning boomerangs is used to modify the way a boomerang performs or to increase its flight range. When you are changing the characteristics of your boomerang remember that SMALL modifications can produce HUGE changes in the performance. Remember that each time you make a change to your boomerang the flight can be significantly different. The easiest way to tune your boomerang so that it flies how you want it to, is to make one small modification at a time, then test throw your boomerang to see how the flight changes.