tuffhead.com
Installing your Broadhead Glue-on or Screw-on Arrows
http://www.tuffhead.com/education/mounting%20broadheads.html
Mounting Broadheads to Glue-On and Screw-On Arrows. There are three methods of attaching broadheads to arrows. They are as follow tie-on glue-on and screw-on . The tie-on method dates back to primitive time when natives tied their hunting tips on with sinew or rawhide. The glue-on and screw-on systems are both found on modern broadheads. The glue on system is mostly used on traditional broadheads. This discussion below applies to glue on broadheads and adapters. 2 What is the procedure to soften the glue...
tuffhead.com
Selecting Left or Right Hand Broadheads
http://www.tuffhead.com/education/selecting_left_or_right_hand_bro.html
Left or Right Hand Broadheads and Fletching? We get a lot of questions on selecting left or right hand bevel TuffHead broadheads. To insure proper broadhead rotation and penetration, you will want to use TuffHead Broadheads with the SAME wing feathers as the bevel. that is, Left wing feathers with left bevels, right wing feathers with right bevels. We offer the following graphic to help you match your new broadheads to existing shafts or to match arrows you currently shoot with success. Tuning the EFOC &.
tuffhead.com
Broadhead Science and Dr Ed Ashby
http://www.tuffhead.com/education/ashby.html
Why you should know about Dr. Ed Ashby. Dr Ashby has a wealth of bowhunting experiences to draw from. This is supplemented by an enormous data base he has collected over the years, on the effectiveness of various bow hunting equipment. In 1985, Dr. Ashby conducted, in Natal Provence, South Africa,. Dr Ashby is recognized worldwide as a leading expert on broadhead design and performance. By incorporating Ed Ashby’s findings, and our own innovations, Tuffhead has resulted as the ultimate broadhead desi...
tuffhead.com
Broadhead Formulas - Weight Forward of Center (FOC)
http://www.tuffhead.com/education/formulas_FOC.html
Formulas and Tech Details. Weight Forward of Center or F.O.C. There are a several categories of forward of center (FOC) used to describe the percentage of weight forward an arrow has. Normal FOC = 0 percent to 12 percent. High FOC= 12 percent to 19 percent. Extreme FOC =19 percent to 30 percent. Ultra Extreme FOC = more than 30 percent. There is a very simple procedure to calculate the arrows FOC percentage. These steps are outlined below:. E Take the Quotient or decimal derived in (D) by dividing (BP) b...
tuffhead.com
TuffHead Broadheads - the Heavyweight of traditional broadheads
http://www.tuffhead.com/broadheads/tuffhead%20main.html
TUFFHEAD TRADITIONAL SINGLE BEVEL BROADHEAD -. THE HEAVYWEIGHT OF BROADHEADS. Whether you are hunting the largest game found on the plains of Africa to the more commonly pursued whitetail deer, moose, elk, antelope, bear, bison, or hogs in the forests and mountains of North America, the TuffHead will be the only broadhead you will ever need. It is simply the best broadhead for any kind of game! Study the details and you will be convinced! Details of the TuffHead "We challenge you to Compare! Offered in 2...
tuffhead.com
TuffHead Broadheads-the details behind the broadhead
http://www.tuffhead.com/broadheads/tuffhead%20tech.html
Tuffhead Tech - The details behind the broadhead. The TuffHead broadhead is very versatile and can be glued directly on the arrow or screwed on with an adapter. Made of 420HC high carbon stainless steel, this tough 3 to 1 ratio laminated head is design with a cut-on-contact 30 double bevel degree tanto tip, and is ground with a single-bevel 25 degree factory sharp cutting edge. Tuffhead broadheads are constructed of double laminated high carbon knife grade stainless steel. As a traditional bow hunter for...
tuffhead.com
About Us
http://www.tuffhead.com/education/P&Y%20Dallas%20May%202013.html
D r Ed Ashby - 2013 Pope and Young Convention - Dallas TX. Dr Eds presentation discusses EFOC, what it does and how it is measured, along with some demonstrations on the effects of rear lever arms, shaft vibrations and their effect on penetration, and a number of technical discussions on how EFOC effects penetrations in this series of slides and videos. Video 1 Building and Tuning the EFOC Arrow. 2013 P&Y Series 1 thru 7 What EFOC does, how it is measured,. And its efffect on penetration and more.
tuffhead.com
Broadhead Formulas - Momentum vs. Kinetic Energy in Archery Applications
http://www.tuffhead.com/education/formulas_momentum.html
Formulas and tech Details. Kinetic Energy vs. Momentum. I have read and studied this subject referencing many different sources. It is confusing at best. The terms Kinetic Energy and Momentum, while different are used simultaneously and interchangeably to describe the energy of the bow and arrow. The explanation you will get on this site is an over simplification or synopsis of the subject. For an in-depth technical discussion please refer to the recommended readings listed below. So what would be the be...
tuffhead.com
Broadhead Formulas - Mechanical Advantage
http://www.tuffhead.com/education/formulas_mechanical_advantage.html
Formulas and tech details. Dr Ed Ashby explains Mechanical Advantage of a broadhead this way:. To determine the mechanical advantage of any broadhead with a straight taper to the cutting edge, divide the horizontal length of the cutting blade by the width of the broadhead divided by 2 and multiplied by the number of blades. In an equation this would be expressed as:. MA = (Length of cutting blade) divided by (1/2 width of head) X (number of blades). Hypothetically If the TuffHead had:. Total Overall Widt...
tuffhead.com
Bowhunter Archery Formulas
http://www.tuffhead.com/education/formulas_main.html
As archers, why do we need to be concerned with such terms as mechanical advantage , momentum , and EFOC? The answer is you don’t, that is, unless you intend to hunt with your bow. Our interests here deals with. Weight Forward of Center or FOC. Kinetic Energy vs. Momentum. The Angle of Attack of Broadheads. N these pages listed above, or using the links to the left, we will explain each in greater detail, how to calculate them, and their relevance to your hunting success and our TuffHead design.