ORIGINAL: Arthur P
nodog, a lot of people don't think one can compare the equipment of yesterday to the equipment of today. Maybe there truly is no comparison between them, but I'll leave the ramifications of that thought process alone for now. That datamax character would have a field day with it.[:-]
He’s is a “character” but a likable one. Makes the world enjoyable.
ORIGINAL: Arthur P
At any rate, don't fall into the trap of thinking today's equipment is not subject to the exact same scientific principles that the old stuff was (and still is, for some of us).
That and your back maybe why you but heads so much with people.
I think the science has advanced a little since the theory of “if it doesn’t move get a bigger hammer” was popular. I believe you that those principles are the rock solid foundation of archery today. The science has helped us become more specialized.
ORIGINAL: Arthur P
Look at all the things one has to do to get that 350 grain arrow to shoot 300 fps. Extra hard pulling cams, high draw weight... Do you realize that some bows today with 70 pounds peak draw weight store upwards of 90 pounds of energy to be released to the arrow? Know how those 90 pounds get into those limbs? That's how much weight you've actually drawn to get your bow to anchor. Peak draw weight is deceiving in that way. You think you're only pulling 70 pounds, and that's what the scales read when you measure the draw weight. But with today's cams that hit peak early and maintain it until very close to anchor, that peak weight stays up there a l-o-n-g distance when you're tugging on it. Honestly, my shoulders can't take that kind of draw cycle, but it allows someone to shoot an inefficient, ultra light arrow with enough force to kill medium size game - if they make smart decisions on the size and type of broadhead they use and - naturally - have the bow tuned to perfection.
So it would be better to measure peak draw weight on the down stroke. That could be done. I have had some experience with these theories. One was with the term, develops. It had to do with a motors hp. While I do not know if it ever developed the hp. it claimed, I do know that as soon as a load was placed on it, it was gone. The math said it was so, the application proved it to be false. I learned that a motors hp. is determined by it’s windings, plane and simple. It takes a lot (size does count here) to produce 1 hp. I realize it’s harder to pull bows that stay at peak weight longer but I don’t know how that changes the weight. It will send the shaft faster only because of the longer energy/force applied. The motor that developed 2hp. slowed down much quicker than an actual 2hp. because it could not maintain the push. They were both no more than 2hp. If the theory is correct I should be able to push an ash shaft with my 70#/90# bow through at least a 3" thick oak door, yes?