The Purpose Of Vanes On Your Hunting Arrow
Hunting arrows are obviously a crucial part of a your bowhunting equipment, and selecting the right type of vanes or fletchings for your arrows greatly impacts your arrow's flight characteristics, your success, and the overall experience while shooting. The purpose of vanes on a hunting arrow is to provide stability, accuracy, and induced arrow recovery.
In this blog, we will discuss the intended purpose of vanes on a hunting arrow, the types of vanes available, and the factors to consider when selecting the right vanes for your hunting needs.
What are Vanes on a Hunting Arrow?
Vanes, also known as fletchings, are the small wings or fins on the back of an arrow that help to stabilize it in flight. Stabilization in flight happens from introduced drag and larger or further back positioned center of pressure. The vanes are typically made from lightweight materials such as plastic, rubber, or feathers, and they are attached to the arrow shaft using adhesive or by wrapping thread around the shaft.
The number of vanes on a hunting arrow can vary, but most hunting arrows have three or four vanes. Three vane configurations are spaced evenly at 120 degrees, while 4 vane configurations can be space evenly at 90 degrees or 60/120 degrees aka "bow tie".
The intended purpose of vanes on a hunting arrow is to create drag, which helps to stabilize the arrow in flight. The vanes slow down one side of the arrow, which creates a spin that helps the arrow recover and flying straight. Perfect arrow flight is possible without vanes, however both the shooter and the bow have to be perfect. So in ensense, vanes/fletchings account for all the negative influence introduced to the arrow when shot in addition to broadhead influence. Arrow recovery becomes ultra important down range for both arrow efficiency and lethality. Having your arrow flight straight is paramount upon impact to maximize penetration. Your nock should be inline with your point throughout flight and upon impact.
Why Are Vanes Important on a Hunting Arrow?
Vanes are an essential component of a hunting arrow, and they serve several critical functions:
Stabilize Arrow Flight: The primary purpose of vanes on a hunting arrow is to stabilize the arrow in flight. The vanes create drag, which slows down one side of the arrow and creates a spin that helps to keep the arrow flying straight. In the physics world, this can be related to the center of pressure positioning on the shaft. The further center of pressure is located from the center of gravity, the more stable the object in flight becomes. As previously mentioned, upon impact a nock dead in line with the arrow point greatly increases penetration vs an impact with the nock out of line. You want lazers!
Increase Accuracy: By stabilizing the arrow in flight, vanes help to increase accuracy. A stabilized arrow is more likely to fly straight and hit the intended target, which increases the likelihood of a successful shot. This boils down to "masking" your flaws as a shooter and possible bow tuning issues. Vanes can hide a lot of bad things with arrow flight.
Improve Penetration: Vanes also help to improve arrow penetration by decreasing the arrow's kinetic energy deprivation and momentum. Arrow recovery. A stabilized arrow with more kinetic energy and momentum can penetrate deeper into the target, which is particularly important when hunting larger game. The faster your arrow recovers, the more lethal it becomes.
Reduce Noise: Vanes can also help to reduce the noise of the arrow in flight. The vanes help to stabilize the arrow and reduce the vibration, which can help to make the arrow quieter. The overall design of the vane, material and shape, have a big impact on the audible noise when the arrow is shot. This is also an arguable point. As the arrow comes into equilibrium vibrations in the shaft are decreased. However, the vanes themselves will introduce a level of audible noise much louder than noise from the shaft.
Types of Vanes on a Hunting Arrow
There are several different types of vanes that can be used on a hunting arrow, each with its own advantages and disadvantages. The most common types of vanes include plastic vanes, feather vanes, and hybrid vanes.
Plastic Vanes: Plastic vanes are the most common type of vanes used on hunting arrows. They are lightweight, durable, and easy to install. Plastic vanes come in a variety of shapes and sizes, and they can be customized to meet the specific needs of the hunter. With hunting applications, 90% of all bowhunters choose some type of plastic vane.
Feather Vanes: Feather vanes are another popular choice for hunting arrows. They are lightweight and have a natural ability to stabilize the arrow in flight. Feather vanes are also quiet in flight and can help to reduce the noise of the arrow. However, feather vanes can be more challenging to maintain than plastic vanes, are problematic in damp conditions, and are less durable. Feathers are a popular choice for traditional archers due to their specific needs and less popular with compound shooters due to the increased speeds.
Hybrid Vanes: Hybrid vanes combine the benefits of both plastic and feather vanes. They are typically made from a combination of synthetic materials and feathers, which helps to provide the stability of plastic vanes and the natural stabilization of feather vanes.
Factors to Consider When Choosing Vanes
As previously mentioned, choosing the right vanes for your hunting arrows can make a significant difference in your arrow's flight, accuracy, and overall performance. Here are some essential factors to consider when choosing vanes for hunting arrows:
- Arrow Length and Weight:
The length and weight of your hunting arrow can have a significant impact on the type and size of vanes you choose. Longer and heavier arrows generally require larger vanes to stabilize them effectively in flight. Shorter and lighter arrows can use smaller vanes. Again, this relates to physics and what it takes to move the arrow's center of pressure on the specific hunting arrow you are shooting.
- Bow Speed:
The speed of your bow also plays a critical role in the type and size of vanes you choose. Faster bows generally require larger vanes to provide sufficient stability to the arrow. Slower bows can use smaller vanes. Once again, center of pressure. The faster the projectile is traveling the more unstable it can become.
- Hunting Conditions:
The hunting conditions you will be facing can also impact the type of vanes you choose. If you are hunting in windy conditions, a smaller cross wind signature will decrease the wind drift of your arrow but that doesn't necessarily relate to the vane profile. To decrease the cross wind signature of your arrow, the arrow must recover and come into equilibrium as fast as possible to minimize the profile the tail end of the arrow has. Also, keep in mind the likeliness of precipitation.
- Shooting Style:
The type of shooting style you use can also impact the type of vanes you choose. We understand that the majority of feather shooters are hunting with traditional archery equipment. For those of us shooting compound bows, we also need to consider the type of rest we are shooting. Something like a whisker biscuit has the potential to chew through vanes pending the vanes material make up.
5. Broadhead Choice:
Your broadhead choice will have a direct impact on the performance of your vane configuration on your hunting arrow. Larger fixed blade broadheads tend to be more difficult to obtain great arrow flight with and may require more drag and/or a center of pressure further back on the arrow shaft. While smaller fixed blade broadheads and mechanicals require less work for optimal flight characteristics.
Choosing the right vanes for your hunting arrows can make a significant difference in your arrow's flight, accuracy, and overall performance. When selecting vanes, consider the length and weight of your arrow, the speed of your bow, the hunting conditions you will be facing, and your shooting style. Don't over think it though, just try a multitude of vanes and configurations to see what works best for you.
Author: Chad Sylvester, Exodus Co-Founder/Owner