I know all this sounds good, but let’s take a look at just how the FOB accomplishes all these great things:
In flight is where the FOB’s aerospace design really demonstrates its superior capabilities. As soon as the arrow leaves the string, the powerful steering forces of the FOB’s ring wing instantly stabilizes the shaft flex paradox that all arrows are subject to when shot. At the same time, the three FOB struts impart an quick and consistant spin on the arrow, which normalizes any inherent shaft straightness run out (usually .002″ – .006″). Because the FOB is lighter than three 4″ vanes and glue, its initial arrow velocity is higher than that of a fletched arrow. Since the FOB arrow stabilizes more rapid than the fletched arrow, less speed robbing air friction is spent in the first few yards of flight enhancing the FOB arrow velocity delta over the fletched arrow. The stability that the FOB imparts on the arrow makes broadhead tuning simple and the arrows fly true regardless of arrow speed or cross wind forces. Big broadheads at high velocity under complete control – WOW!*
We won’t get into the debate over what type of broadhead to use for what kind of animal. But, we will say that most archers have a desire for the flattest trajectory possible to minimize ranging errors. Many hunters prefer to use fixed blade broadheads while others swear by mechanical broadheads – the debate will probably go on for quite a while. We’re sure that a number of you have tried to drive, oh let’s say a Zwickey (or any number of large fixed blade heads), at high speed on the front of a carbon or super-light aluminum shaft steered by 4″ vanes and got marginal results at best. Go to 5″ vanes and you slow things down a bit and are now dealing with more interference issues (nothing is free). Those of you that are really into extremely high arrow speeds have the issue of vanes letting them down at these velocities. We know that we’ve bought more arrow rests, shafts, vanes fletching tools and broadheads than should be allowed by law in search of that perfect arrow flight. Yes, we’ve had some very good setups, but always at some level of compromise.
Shoot and stabilize large fixed blade heads with FOBs . The FOB fletched arrow will fly faster, truer and hit harder than anything that has ever been marketed before.
Special note to shooters that have high speed set ups. You can take advantage of the FOB and successfully shoot arrows at previously unheard of velocities without any of the instability problems that are inherent to conventional fletching. The FOBs superior flight characteristics are unaffected by high arrow velocities. In fact, the faster the FOB goes, the more stability it provides! Now you can make those speed bow setups really smoke!
Reduced accuracy robbing cross wind affect. The cross wind affected surface area of a FOB is reduced 2½ times compared to three 4″ vanes which really makes a marked improvement in arrow flight as well as your ability to accurately hold your bow while trying to shoot with a bow mounted quiver full of arrows.
Flatter trajectory. Higher initial velocity because the FOB is lighter than three 4″ vanes and glue. Since the FOB arrow stabilizes more rapidly than a fletched arrow, less speed robbing air friction is spent in the first few yards of flight enhancing the FOB arrows velocity delta over the fletched arrow. Due to the FOBs reduced frontal surface area compared to conventional fletching, the FOB has less speed robbing drag (friction) during flight. Bottom line is that the faster an arrow gets there, the less we have to worry about arrow drop. The increased arrow speed at the target means more impact energy, which results in deeper penetration and more humane kills.
Deeper penetration. When your arrow penetrates an animal deeply, the FOB simply pops off the shaft and the arrow continues its path through the animal. Penetration is increased because there are no fletchings to hang-up in the animal, just a bare, blood lubricated, shaft that slides right on through. A side bonus is that the spot that the animal was standing when hit is clearly marked by the FOB that popped off when the arrow passed through the animal.
Rest set up tips
We have had great results using the FOB with all kinds of Mechanical (expanding type) as well as fixed blade broadheads. For target shooting with field tips, you can’t beat the FOB’s incredible amount of control over the arrow flight.
Some archers have not been setting up their fall away rests with sufficient clearance, or they don’t have the rest falling away quickly enough. As a result, they are getting mixed performance results. We offer the following tips to enable you to obtain perfect arrow flight.
- FOBs are for use with Fall Away arrow rests only.
- Ensure that you have adequate clearance between the cable guard/cables and the FOB.
- Use the FREE tester FOB included with each FOB purchase to check for clearance.
- With the arrow nocked to the string, slide the clearance tester (the off colored FOB) up and down the arrow to ensure FOB clearance at cables, cable guard, bow riser, arrow guides & and sight. Some rests/arrow holders may need to be adjusted/modified to allow for FOB clearance.
- The fall away rest MUST get down and out of the way quickly. Our testing shows that some fall away rest setups are still experiencing some interference issues with vanes. The flying wing of the FOB, being more of a hard surface than a normal vane, is not as tolerant to interference with the arrow rest. But, due to the extremely powerful steering forces, the FOB will recover so quickly that you may not immediately detect interference during arrow launch. Bottom line is to make sure that the rest drops out of the way quickly.
- We recommend that the fall away rest be used with its nylon cord or cable as the material for lifting the rest. Secure the lanyard from the arrow rest over to the “Down Bus Cable” of your bow. We do not recommend securing the lanyard to the cable slides as some rest manufacturers are recommending. The cable slide has some inherent delay when the bow is fired which results in a delay in the arrow rest drop.
- However – If the manufacturer of your bow recommends using the cable slide that is acceptable. The reason some bow manufactures suggest using the cable slide is because of the characteristics of the some binary cam system. If you tie into the down cable this may cause the cam attached to that cable to rotate more during the draw cycle causing the cams to come out of sinc. Always follow the Bow Manufactures recommendations.
- As for tuning, there are a couple of ways to accomplish this. First, you can paper tune with bare shafts and then fine-tune with your preferred broadhead and target tips. Or you can paper tune with your old fletched arrows and then switch to the FOBs followed by fine-tuning with broadhead.
- Broadhead tuning using a fixed blade head is recommended to establish center shot and nocking point. Even if you use expandable broadheads, use a similar weight fixed blade head to tune and maximize FOB performance. Broadhead tuning is simply moving your rest NOT your sight up/down and or left/right until you broadheads hit the same place as you field tips. This is done after you sight in with your field tips (moving sight and pins).
- Due to the FOBs far aft location (by design) on the arrow, a small percentage of shooters have experienced an interference issue between their chin and the flight ring of the FOB. This is easily remedied by making minor adjustments to either ones peep, kisser or anchor point however it is best to try and use the FOB as an anchor point. Use your normal anchor and things should settle in.