What arrow mass will achieve tha maximum momentum?
05-16-2008, 12:23 PM
#31
Giant Nontypical
Join Date: Jun 2007
Location:
Posts: 7,367
RE: What arrow mass will achieve tha maximum momentum?
ORIGINAL: Sylvan
Yes I do, and sometimes ALWAYS is the correct term. Just as force is ALWAYS a function of mass and acceleration, and trajectory is ALWAYS a function of velocity and g, bow efficiency is ALWAYS an increasingfunction of arrow mass and therefore,ke/momentum always ALWAYS increase as you increase the mass of the arrow. The increase may be small but it will ALWAYS be an increase. As I said before, it's fundamental mechanics. Don't take my word for it, there are plenty of books and internet sites where you can find out for yourself.
Have a great day!
You know what they say about ALWAYS![8D]
Have a great day!
Then I double checked them for accuracy.
It is a fact if you don't want to believe it, that's your choice
When I dropped to a 340 grain arrow KE dropped slightly as you would expect. I guess my Airborne forgot to read the Book[8D]
Dan
05-16-2008, 01:06 PM
#33
Giant Nontypical
Join Date: Jun 2007
Location:
Posts: 7,367
RE: What arrow mass will achieve tha maximum momentum?
ORIGINAL: Sylvan
Allrighty then! You've got one amazing bow there!
Allrighty then! You've got one amazing bow there!
I'm not arguing theories. As I have shot and tested tons of bows in the 40 years I have been in archery. I had never came across it before. Usually there is a gain as the arrow gets heavier, however insignificant it might be.
I just stated the facts and figures as they came out.
Dan
05-16-2008, 03:07 PM
#34
Join Date: Dec 2005
Location: Ohio
Posts: 584
RE: What arrow mass will achieve tha maximum momentum?
I have not hunted a grizz but I have talked to two guys that have and what ever setup will take a black bear will take down down a mature grizz. Their equipmet was the same they use for whitetail deer and with one arrow they have their bears. Your present setup will do it just make sure you know what your POI is with thedifferent yardages and practice. You'll only get one arrow.
05-16-2008, 09:22 PM
#35
Giant Nontypical
Join Date: Feb 2003
Location: HENDERSON KY USA
Posts: 6,634
05-17-2008, 08:42 AM
#36
Nontypical Buck
Join Date: Nov 2007
Location:
Posts: 3,071
RE: What arrow mass will achieve tha maximum momentum?
ORIGINAL: MeanV2
I don't need a Book to tell me my Airborne 82 produces more KE shooting a 400 grain arrow than it does while shooting a 500 grain arrow. I weighed the arrows, shot them through my Chrono, and run the figures through the calculator.
Then I double checked them for accuracy.
It is a fact if you don't want to believe it, that's your choice
When I dropped to a 340 grain arrow KE dropped slightly as you would expect. I guess my Airborne forgot to read the Book[8D]
Dan
ORIGINAL: Sylvan
Yes I do, and sometimes ALWAYS is the correct term. Just as force is ALWAYS a function of mass and acceleration, and trajectory is ALWAYS a function of velocity and g, bow efficiency is ALWAYS an increasing function of arrow mass and therefore, ke/momentum always ALWAYS increase as you increase the mass of the arrow. The increase may be small but it will ALWAYS be an increase. As I said before, it's fundamental mechanics. Don't take my word for it, there are plenty of books and internet sites where you can find out for yourself.
Have a great day!
You know what they say about ALWAYS![8D]
Have a great day!
Then I double checked them for accuracy.
It is a fact if you don't want to believe it, that's your choice
When I dropped to a 340 grain arrow KE dropped slightly as you would expect. I guess my Airborne forgot to read the Book[8D]
Dan
05-18-2008, 04:58 AM
#37
Nontypical Buck
Join Date: Jan 2005
Location: Upstate New York
Posts: 2,435
RE: What arrow mass will achieve tha maximum momentum?
If I put a 100 pound weight on a scale and the scale read 100 pounds and then I added a 1 pound weight and the scale read 99 pounds, I would conclude there is something wrong with the scale. I wouldn't conclude that sometimes more mass = less weight.
Adding mass to a scale ALWAYS results in more force exerted on the scale. Increasing arrow mass ALWAYS results in increased ke. In either case, if testing indicates otherwise then something is amiss.
The fact that increasing arrow mass results in increased ke may not be as intuitively obvious as the fact thatincreasing the mass of an objectresults in an increase in the force exerted on the earth, but both are equally true.
Adding mass to a scale ALWAYS results in more force exerted on the scale. Increasing arrow mass ALWAYS results in increased ke. In either case, if testing indicates otherwise then something is amiss.
The fact that increasing arrow mass results in increased ke may not be as intuitively obvious as the fact thatincreasing the mass of an objectresults in an increase in the force exerted on the earth, but both are equally true.
05-18-2008, 05:06 AM
#38
Giant Nontypical
Join Date: Jun 2007
Location:
Posts: 7,367
RE: What arrow mass will achieve tha maximum momentum?
ORIGINAL: Sylvan
If I put a 100 pound weight on a scale and the scale read 100 pounds and then I added a 1 pound weight and the scale read 99 pounds, I would conclude there is something wrong with the scale. I wouldn't conclude that sometimes more mass = less weight.
Adding mass to a scale ALWAYS results in more force exerted on the scale. Increasing arrow mass ALWAYS results in increased ke. In either case, if testing indicates otherwise then something is amiss.
If I put a 100 pound weight on a scale and the scale read 100 pounds and then I added a 1 pound weight and the scale read 99 pounds, I would conclude there is something wrong with the scale. I wouldn't conclude that sometimes more mass = less weight.
Adding mass to a scale ALWAYS results in more force exerted on the scale. Increasing arrow mass ALWAYS results in increased ke. In either case, if testing indicates otherwise then something is amiss.
or maybe a 20#er[8D]
Dan
05-18-2008, 05:14 AM
#39
Nontypical Buck
Join Date: Jan 2005
Location: Upstate New York
Posts: 2,435
RE: What arrow mass will achieve tha maximum momentum?
ORIGINAL: MeanV2
I think I'll shoot a 2# arrow then
or maybe a 20#er[8D]
Dan
ORIGINAL: Sylvan
If I put a 100 pound weight on a scale and the scale read 100 pounds and then I added a 1 pound weight and the scale read 99 pounds, I would conclude there is something wrong with the scale. I wouldn't conclude that sometimes more mass = less weight.
Adding mass to a scale ALWAYS results in more force exerted on the scale. Increasing arrow mass ALWAYS results in increased ke. In either case, if testing indicates otherwise then something is amiss.
If I put a 100 pound weight on a scale and the scale read 100 pounds and then I added a 1 pound weight and the scale read 99 pounds, I would conclude there is something wrong with the scale. I wouldn't conclude that sometimes more mass = less weight.
Adding mass to a scale ALWAYS results in more force exerted on the scale. Increasing arrow mass ALWAYS results in increased ke. In either case, if testing indicates otherwise then something is amiss.
or maybe a 20#er[8D]
Dan
Be interesting to see the bow that could handle those arrows!
05-18-2008, 05:16 AM
#40
Giant Nontypical
Join Date: Jun 2007
Location:
Posts: 7,367
RE: What arrow mass will achieve tha maximum momentum?
Sylvan, I ran those tests using the same grain scale, same chrono, same bow, set on the same specs, same shooter, then double checked for accuracy, and same calculator.[8D]
I am sure a 20# arrow would be a dud. If you choose not to believe my findings. Honestly I could care less
It does Not change the figures one bit
Dan
I am sure a 20# arrow would be a dud. If you choose not to believe my findings. Honestly I could care less
It does Not change the figures one bit
Dan
