Since the Aerovane was introduced in spring of 2008, a lot about the Aerodynamics and Arrow-dynamics has not fully understood. Aerovane I was made with extreme polish on all surfaces thinking that it would decrease the friction drag from the air. In fact, the opposite is true; a slightly rough surface texture is more aerodynamically efficient. The dual airfoil of Aerovane I was so complicated that hindsight it to be nearly impossible to understand what the real effect upon extensive wind tunnel testing.
After prolonged in-house wind tunnel testing and consultation with low-speed airfoil experts like Professor Michael Selig of the University of Illinois at Urbana-Champaign (UIUC), Aerovane II was designed to have multiple texture zones and to take advantage of Aerodynamic Elasticity Memory (AEM) (i.e. airfoil being elastically deform to further promote circular lift and consequently arrow spin while decrease the angle of attack of the leading edge of the airfoil). However, due to certain patent issues related to texturing, Aerovane II needed to be re-designed. By redoing the surface texture on Aerovane II, the thickness of Aerovane II was increased, and this increase resulted in significantly reduced effectiveness of AEM. The lost of this effect actually makes Aerovane IIr1 a much easier to use vane for an inexperienced archer as one can fletch the AerovaneIIr1 without the need of a high-precision fletching jig. Since 2011, Firenock LLC has been selling Aerovane IIr1, while Aerovane Ir1 was discontinued. By 2010, Firenock introduced the Aerovane Jig which precision fletching can be accomplished. Via the designing and redesigning of Aerovane I, Aerovane Ir1, Aerovane II, and Aerovane IIr1, we now have Aerovane III.
Aerovane III is available for purchase sicne Januray 2013, by mid April all 10 colors should be available at our web store. The shipping of all pre order by the dealer will be filled as soon as we receive them. As of today blue, clear, green, lime, pink, orange, red, white, and yellow is the only colors that are in stock.
Has 10mm in height or 29% shorter than Aerovane II.
Weighs only about 5.18 grains or just over 30% lighter than Aerovane II.
Advanced air flow base texture zoning instead of vertical texture zone.
4 different texture zone 0.0402mm, 0.0201mm, 0.0150mm and 0.0005mm which are represented in yellow, red, green, and gray as shown in the diagrams.
Incorporated a winglet to improve the aerodynamics and reduce induced drag.
Has a larger total airfoil surface area to compensate shorter in height so that Aerovane III it can have the same total lift and corresponding spin torque as Aerovane II.
AEM factor which is nearly 350% higher than that of Aerovane II, i.e. when the arrow with Aerovane is turning, the frontal section of Aerovane will bend towards the rotation while the tail section will bend away from the rotation which results in the angle of attack of the wing being at the most efficient angle base on speed. This is further enhanced by the IZOD factor of the plastic to make AEM at its best.
Uses the same aspect ratio of the delta wing frontal area to reduce sound in flight.
Close to 30% reduction in crosswind effective which makes Aerovane III has a much better ability to treat crosswind. Arrow with Aerovane III should be able to hit a target under 35 mph crosswind at 35 yards with archery projectile at 320fps as compared with Aerovane II under 25 mph crosswind at 35 yards with with the same projectile.
Can be fletch with all versions of Aerovane jig and Aerovane clamp due to the wide internal opening width of Aerovane clamp.
Aerovane III will have an even higher broadhead requirement than Aerovane II due to Aerovane III has having a much higher rotational lift (spin rate) than Aerovane II.
Works best from 280 fps and up when fletch straight.
Aerovane III initially comes in white only, but it will come in all 10 colors like Aerovane II.
1Firenock and its associates has built its own wind tunnel testing equipment for Aerovane testing.