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Estimate maximum effective distance based on speed and drop.

Estimate trajectory drop based on distance and speed.

Estimate terminal velocity from drag and weight.

Estimate arrow spine index based on draw weight, arrow length, and point weight.

Estimate arrow speed from draw weight, draw length, and arrow weight.

Estimate penetration score from momentum and broadhead type.

Estimate arrow length from draw length and safety margin.

Calculate arrow momentum from speed and weight.

Calculate arrow kinetic energy from speed and weight.

Estimate impact force from energy and penetration depth.