<BLOCKQUOTE id=quote<font size=1 face='Verdana, Arial, Helvetica' id=quote>quote:<hr height=1 noshade id=quote>What you are reffering too is drag and air resistance and not friction.Friction is something actually rubbing against an object <hr height=1 noshade id=quote></BLOCKQUOTE id=quote></font id=quote><font face='Verdana, Arial, Helvetica' size=2 id=quote>

Isn't drag and air resistance due to the friction of the air. Air is not a vacume, it is a medium. I think those terms are one in the same. Air resistance is due to the friction of air molecules rubbing against the arrow.

I think 99% of the friction is directed onto the broad head and the shaft size, being led through a larger hole from the head plays a very small role in penetration.

I also feel the penetration diff. between heavy and light are so small that in the real world do not change the outcome.

I opt for speed, I can live with loosing a little KE for the flat trajectory.

Its just makes it that much easier for me to pull the arrow out of the dirt.<img src=icon_smile_big.gif border=0 align=middle>