Iron Will 2.5 Vanes are the culmination of a two year University of Colorado study to optimize stability and accuracy with broadheads while minimizing drag, wind drift, and sound. These vanes were optimized using 2,000 hours of fluid dynamic modeling and 2,500 arrow shots of empirical testing. As a key result from the testing, these vanes are engineered with added surface area high and back on the vane. The study proved this key for improved broadhead stability and accuracy. Additionally, these vanes were engineered with a more gradual front incline, which is shown to reduce drag, wind drift, and sound compared to short, high-profile vanes. The angled back end of this vane reduces sound and drag when compared to shield-cut designs. The higher stiffness vane material in the Iron Will 2.5 Vane has excellent dampening to eliminate any flutter while providing superior durability. These Iron Will 2.5 fletchings are sold as a 40 pack. Bond with cyanoacrylate type vane adhesive. No priming required.
