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Old 01-27-2004 | 03:58 PM
  #24  
cpickands
 
Joined: Jan 2004
Posts: 8
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Default RE: New NAP Vanes(Pic)!

Hi Guys,

The vanes actually weigh 11.5 grains each so the total weight as compared to a standard plastifletch is about 10 grains heavier.

The spinning machine at the show had air flow equal to about 40 MPH or 58 FPS. So it was about 1/5 normal arrow speeds of 260 FPS. The RPM readout we used for the display would increase at higher rates of air flow.

The Micro-Grooves we use on one side do two things. First they create a difference in air pressure side to side which creates spin. Second they provide rigidity which prevents the vane from flopping wildly in the air stream. The rigidity helps to stabilize (prevent flapping) the vanes almost immediately out of the bow. This effect allows the kicker at the back end to function more effectively as spin increases.

The kicker is molded secondarily after the base. The profile is such that the vane can be used in any standard fletching jig or automatic fletching machine.

The durability is similar to other such plastic products.

In a speed decay test the 20 yard speed of the QuikSpin vane was 246 FPS, while a plastifletch was 247 FPS and 4 inch helical feather was also 247 FPS.

Down range precision is increased as a function of being able to stabilize the arrow almost immediately out of the bow and maintaining aerodynamic stability due to spin. Basically it is the same idea a gun manufacture uses when making a highly rifled barrel for target shooting. (I guess one could say it is kind of like rifling for your bow).

The ability to stabilize a standard broadhead is also increased.

Noise is about the same to the human ear as a standard plastifletch.

We do not have all this information on our website yet, so I thought I'd add a bit to the discussion.

If you have any more questions please feel free to call New Archery Products at 800-323-1279.

on a personal note...I think you will all be pleasantly surprised at what these things will do!

Cary Pickands - NAP Technical Services Specialist
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