Ok, and thanks Markus for letting me know, the new PDF is on the ABA web site. As Markus pointed out, page 3 is still not coming through. This must be something happening when it goes on the web site. My copy (the one I sent them) loads and opens correctly on all the PDF readers I can find here, but the one from the web site has the page 3 error on all ... SO ... below is the text of page three!
"An absolute ‘predictor’ of arrow penetration, on every shot, is impossible. Outcome driven analysis from real shots, into real tissues, does, however, give a definitive picture of any given arrow’s incidence, tendency, and frequency of occurrence of events during tissue penetration. Testing in a uniform medium does not. Having tried both approaches, I feel certain that it is only through the use of outcome driven results that reliable indicators of an arrow’s likelihood of performance under real hunting conditions can be developed.
Before launching into the physics of arrow penetration, we first need some basic definitions. Those not ‘technically predisposed’ will find the first part tedious, but it is necessary groundwork for one to understand the propositions that follow. It is important for one to know that the recommendations are grounded in both the coherent logic of physics and the empirical facts; facts confirmed through nearly a quarter century of intensively collecting and collating detailed field measurements of the terminal performance of hunting arrows in real animal tissues.
[NOTE: For the benefit of those who find the ‘highly technical’ difficult, some of the more ‘technically precise’ clarifications and information has been set aside in text boxes, and denoted as a “Nerd’s Note”. (Nerd. Defined as an enthusiast whose interest is regarded by others as too technical or too scientific. Somehow, I think I resemble that remark!). It is entirely acceptable for those ‘mathematically challenged’ to omit reading the Nerd’s Notes! Their omission will not affect the reading of the other text.]
The Laws of Physics
FORCE: Force is defined in physics as that which tends to change the momentum of a body containing mass. Force is proportional to the rate of change of momentum.
Nerd’s Note: Force (lbf) = [mass (lbm) times the acceleration (expressed in ft/sec²)] divided by the gravitational constant. The gravitational constant is 32.174 lbm-ft/lbf-sec2, and is abbreviated as ‘gc’. In English units, the gc is used anytime one goes from pounds mass (lbm) to a force, (lbf)."
Hope this helps!
Ed
Topic: The New PDF Is Up - Mo, Ke & Penetration (Read 1363 times)
