Aerovane is the first to employ airfoil technology on the vanes of an arrow. Unlike traditional vanes, Aerovane is not flat and it should be fletched straight to function best. Aerovane is designed after an owl wing, thus Aerovane can fly quietly without fluttering noise.
Instead of using air drag, the Aerovane uses airfoil technology to create spin. It is based on Bernoulli's principle, a fundamental law of fluids in motion, which states that when air flow speed increases, pressure decreases and vice versa. In airplane wing design, when air flows more rapidly over the upper surface than the lower one, it decreases the pressure on the top surface and increases the pressure on the bottom surface and thus creates lift that keeps the airplane in flight. In the case of Aerovane there are multiple vanes on a shaft so circular lift occurs, causing the arrow to spin.
There are 3 main contributing factors that make Aerovane quiet:
Very rigid airfoil: By having a rigid airfoil, a lot of wow and flutter (also known as harmonics) are minimized. Aerovane is not only one of the hardest vanes on the market, it also employs the design of an ultra slim pyramid which is one of the most rigid structures based on volume.
Very round leading edge: just like an owl's wing. This round leading edge allows air to flow over it while creating minimum air molecule to air molecule disturbance. This also minimizes the formation of a delta vortex, which robs speed and creates sound. To further reduce sound, all edges of Aerovane are round.
Micro texturing: different micro-texturing is applied on different areas of the surfaces of Aerovane to get the least amount of back end turbulence to minimize the vacuum back pressure (bubble). This micro texturing also helps to generate a different level of micro turbulence to minimize surface to air drag.
If you fletch Aerovane II correctly, Aerovane II could tighten your groups and increase your effective range. The use of Aerovane will not turn an average archer into a tournament archer over night, but Aerovane can give your arrow more consistent flight. Thus an average archer can possibly increase in accuracy using Aerovane II.
Since Aerovane is based on airfoil technology, it is essential that they are as rigid as possible to generate enough lift. If safety was not an issue, Aerovane would be made of metal to fully utilize the airfoil technology.
Like all high durometer plastic, low temperature will make Aerovane very brittle. When temperature reaches around -10F, any in flight contact with Aerovane will lead to shattering of Aerovane. As long as there is no in flight contact, Aerovane will not crack or tear even at low temperatures.
Most fletching glues should work well with Aerovane, but due to the release agent embedded inside the material, acetone should be used to remove all foreign material before gluing the vane on the shaft. Low viscosity glue Aerovane glue AG0600 / super glue type like Goat-tough glue / AG0GEL will usually work in most occasions as long as the vane is clean and treated correctly. For best results regarding Aerovane fletching, please read FAQ .
Aerovane is injection molded, thus Aerovane will have oil on them and inside them. Although the factory cleaned the vane with soap and water, it is always advised to clean the gluing surface and the vane base using a Q-tip soaked with pure acetone (available at Walmart cosmetic section) to wipe clean the vane base, then wipe dry with a dry end of a Q-tip and finally fletch as normal.
Aerovane is entirely based on airfoil design. To release the full potential of Aerovane, the only way is to fletch it straight (i.e. zero degree). However, if the arrow speed is below 260fps, up to 1 degree offset fletching approach is suggested in order to increase the rotational speed of Aerovane II.
Aerovane is based on airfoil design and its profile resembles the profile of the frontal portion of an owl wing, so its surface is not flat. To fletch Aerovane, Aerovane clamp or a clamp modified with a 1/16" square brass bar is needed in order to hold Aerovane straightly via the wind channel on Aerovane.
Based on the field reports, Aerovane should work best under 1" (<25mm) from the center of the nock to the end of the vane. As Aerovane does not create turbulence by itself, it is the wind passing through the vanes to create arrow spin. Therefore it is best to leave less than an inch from the nock point to the vane for best performance.
Traditional vanes or feathers are usually flat in design, so helical fletching, angle fletching or adding a flipper (rudder) is a must to create air drag in order to make the arrow to spin. Aerovane design is based on Bernoulli's principal, the utilization of airfoil technology, which creates lift based on a variation of airflow speed on the 2 sides of the vane. By utilizing multiple vanes, the multi directional lift will create spin.
Due to the demand for light weight and user friendly version of Aerovane, Aerovane I was discontinued in 2011. Aerovane II is proved to be user friendly, lighter in weight and is easier to fletch. By fletching Aerovane II with a 1 degree offset, it can do what Aerovane I can do (spin well at low speed of < 260fps).
Aerovane II is not just rough on the surface. There are actually 6 different textures, 3 on each side of Aerovane II in order to get maximum benefit of airfoil technology. The front portion of the vane has a roughness of 0.0402 mm, middle portion is 0.0201mm, and end portion is 0.0150mm.
As Aerovane has a low value of "Cross Wind Signature" (i.e. Column of air being disturbed), Aerovane is not affected much by the cross wind. The reason is that Aerovane uses airfoil technology instead of air drag, Aerovane is disturbing a minimum amount of air when air passes through Aerovane. In other words, as the column of air being disturbed decreases in size, smaller CWS is resulted and thus the effect of crosswind becomes smaller.
In some cases due to the difficulty to tune a bow correctly, one can use the arrow length and spine to fine tune your bow in order to unleash the full potential of Aerovane. The method used is very much like those used for traditional finger shooter with a long bow.
With Aerovane II, nearly all arrow rests (except a brand new Whisker Biscuit) will work. For some binary cam bows, it may be good to have arrow rest like the Hostage and QuickTune if you are not a great bow tuner. If a bow is micro tuned properly, any rest besides a brand new WB will work very well with Aerovane II.
The Aerovane is a high performance vane that will cause the arrow to spin at high speed, any deviation on the launch cycle (nock travel) will make your set up insufficiency becoming obvious. It will be easier for Aerovane II to shoot out of a bow that can be micro tuned.
The 09 Dream Season is a great bow that can be shot with either a full capture or drop away rest. Since the nock travel on this bow is not leveled, the full capture rest is the easiest and quickest way to tune the bow. If you choose to go with a full capture type rest, either the NAP QuickTune 360 or Octane Pro Hostage will work fine. Set up the rest based on the centerline markings of your bow and you will be very close to shooting a bullet hole through paper. Some minor adjustments will probably be necessary.
If you choose to go with a drop away rest; which is my preference, you need to make several adjustments to get your bow in tune. The adjustments are as follows:
D-Loop/Nock location: In order to counter the nock travel, you will need to have a high nocking point of at least 3/8". To give you an idea of the distance I am talking about, the distance from the center of the string suppressor to the center of my D-Loop is 6 3/8".
Cable Guard: You will need to move your cable guard as close to your rest as possible without causing any interference, this will help to line up your string, arrow and rest when the bow is in the drawn position. You do not have to move the cable guard very much, I only moved mine approximately 1/8". Keep in mind, when you look at the bow from the back with an arrow on the string, it will look like the arrow will strike the cables; however, due to the nock travel it will actually miss them. You will be able to adjust this through further paper tuning.
Left Yoke: In order to bring your arrow back towards center line, you will need to put twists into the left yoke tightening the string. Start out with six twists, you can always add more if needed. I ended up putting nine twists on my bow. To give you an idea of what to look for once you twist the left yoke, when you are looking at the top cam from the back of the bow, follow the string down from the top of the cam to the bottom. At the bottom of the cam, it will appear as if the right edge of the cam and half of the string (on the cam itself) are to the right of your main string. Keep in mind, after you twist the left yoke, you will have to adjust the cams to get them back into timing the best you can. I was able to get my bottom cam timing mark to lay perfectly center on the cable; however, the upper cam timing mark lays on the front part of the cable. This did not seem to effect the performance of the bow.
You will have to play around with #2 and #3 above to get the right combination of adjustments for your bow. It may sound like a lot to do, but it worths the time and effort in the end. Just to give you an idea of how well the above steps will tune your bow, after I completed these steps, I was able to shoot a field point and a fixed blade broadhead into the same spot out to 50 yards.(written by Jeffery Bailey)
With a 65lb bow, the 400 spine arrows react as if they are slightly weak in spine (hit to the right); 350 spine arrows react as if they are slightly stiff (hit to the left); and 300 spine arrows react as if they are stiff with a field point and weak with a broadhead. The simple solution to correct the 350 spine arrows would be to move the arrow rest closer to the bow (i.e. more in line with the center of the bow). For the 300 spine arrows, the field report suggested to increase draw weight from 65 lbs to 67 lbs or even 68 lbs; which this would help to even out the results.
Aerovane is great for both target and broadhead shooting. The inherited high spin speed design of Aerovane would easily stabilize an arrow with a broadhead faster than an arrow fletched with traditional vanes & feathers, however not all broadheads are designed to spin at high speed. As most radial design broadheads are not meant to spin, they would not work well with Aerovane.
No mechanical turkey broadhead will work with Aerovane. The high spin speed of Aerovane will make BIG turkey broadheads like the Gobbler Guillotine™ and the Magnus™ Bull-head™ behave like a helicopter when shot. If one decides to use arrows fletched with Aerovane to hunt turkeys; the American Turkey Terror, Rage (with Gator rubber-band), and the Trophy Ridge Turkey Tom-O-Hawk are suggested.
With Aerovane II: We recommended fixed blade broadheads with as big as 1 1/2 inch cut fixed blades. Most of the expandable broadheads will not work well with Aerovane II as the high spin rate of arrow will cause the blades to deploy during flight. All truly secure expandable blade broadheads are good with Aerovane II.
Broadheads tested with Aerovane II including Smoke Ramcat, NAP Nightmare, Rocky Mountain Blitz (Right Offset) and Rocky Mountain Blitz (Left Offset). The basis of the testing was to shoot two of the above listed broadheads at a Block Target 30 yards away. If both arrows hit the center bullseye, the broadhead is classified as "Best"; if one arrow hits the bullseye and the second hits within 4 inches of the center, the broadhead is classified as "Good"; if both arrows hit greater than 4 inches from the center, the broadhead is classified as "Poor." For all arrow / broadhead combinations that are classified as "Best". The tests were repeated as above shooting at a 40 yard target and a 50 yard target. Prior to shooting the broadheads, the bow was checked to be properly set up by shooting through paper at 3 feet, 9 feet, and 15 feet with a complete bullet hole. The bow that was used for this test was the Darton Pro 3500S set at 65 pounds at 29" draw with 29 inch Victory Archery VForce HV V1 350 arrows fletched with Aerovane II and Firenock practice nocks.
30 Yard Target Results
Smoke Ramcat - Best
NAP Nightmare - Best
RM Blitz (Right Offset) - Best
RM Blitz (Left Offset) - Best
40 Yard Target Results
Smoke Ramcat - Both arrows hit the bulls eye
NAP Nightmare - Both arrows hit the bulls eye
RM Blitz (Right Offset) - 1 arrow hit low 1"; 1 arrow hit left of the bullseye 1"
RM Blitz (Left Offset) - Both arrows hit the bullseye
50 Yard Target Results
Smoke Ramcat - 1 arrow hit the bullseye; 1 arrow hit left of the bullseye 1.5 "
NAP Nightmare - Both arrows hit left of the bullseye 2"
RM Blitz (Right Offset) - 1 arrow hit below the bullseye 1"; 1 arrow hit left of the bullseye 4"
RM Blitz (Left Offset) - Both arrows hit left of the bullseye by 2.5"
In summary, the Smoke Ramcat appeared to match the spinning effect (or rotational force) placed on the arrow by Aerovane II becoming a very accurate arrow / broadhead combination especially at longer ranges.
Aerovane II is a high performance vane that needs speed to show its potential. Arrow with 295fps is considered to be optimum, however Aerovane can work well with lower launching speed arrows (around 265fps) by offsetting Aerovane II as much as 1 degree. Even at speeds below 265fps, Aerovane can still give you tighter groups and silent arrow flight.
The Aerovane II was released shortly after we introduced the Aerovane I in September 2008. At present, Aerovane III is the latest design of Aerovane. Both Aerovane II and III works great which Aerovane II is more forgiving than Aerovane III while Aerovane III can spin faster than Aerovane II.
There is no gain in speed while using Aerovane when your arrow is launched from a bow, however you will notice a significant gain in speed as the shooting distance increases compared with other vanes on the market as Aerovane is not using air drag to induce rotation, thus your arrow can conserve more energy with Aerovane as distance increases.
Based on the current field test data, 280-295 fps is found to be good launching speed for Aerovane II to achieve the maximum potential with straight fletch of Aerovane. Arrow with around 265fps, half a degree to 1 degree offset works well.