Jeff, I went through the same thing a while back and after finding out the information I have found that adding weight and gaining KE you are also gaining momentum, just as long as you dont keep adding weight till your KE starts to drop.
__________________
TBH,
http://www.camospace.com/signup/friend_TexasBowHunter/
"LUCK-is where opportunity meets preparation"
and "P.E.T.A. Sucks"
I suppose I could build a REALLY heavy arrow....and have a lot of "momentum" in my setup. But....at what point do you receive diminsihing returns?
It really depends on what you consider diminishing returns on increasing the weight of the arrow. There will be a point where there will be atrade offover speed which is probably different for each individual, getting to a standard will be impossible. Your arrow will absorb more of your bows energy as the weight of the arrow increases. However at a certain point the increase will be less and less until very little increases are made. Would that point be enough, if you add more weight, you can still get more technically. With the arrow materials being made right now though, I don't think there is a point of being too heavy. I am shooting arrows right now that are closing in at 700 grains and it would be difficult to add much more with what is being offered on the market.
__________________
"I do not Hunt animals to Kill them. I kill animals because I Hunt." Roger Rothhaar
Velocty X Mass/225120= momentum I left out the divider in the other post!!!
Jeff, I went through the same thing a while back and after finding out the information I have found that adding weight and gaining KE you are also gaining momentum, just as long as you dont keep adding weight till your KE starts to drop.
__________________
TBH,
http://www.camospace.com/signup/friend_TexasBowHunter/
"LUCK-is where opportunity meets preparation"
and "P.E.T.A. Sucks"
Breaking this down into a unting scenario (for you, Bruce).....I'll be shooting 60#'s and using a/c/c 3-49's, this fall. RIGHT NOW.....my plan is to utilize a 100gr BH (mechanical). I think I'll be getting +/- 290fps out of this setup.....and my total arrow weight will be in the 375gr. range (+/- 5 gr).
That's +/- 70FPKE.
"IF" I thought I could go with a 125gr head and not require an arrow change (due to spine).....I'd consider it. It would help my FOC.....AND (I assume) my "momentum".
But it would slow my arrow down, I would think, considerably. So how does that compute as far as "diminshing returns"?
Breaking this down into a unting scenario (for you, Bruce).....I'll be shooting 60#'s and using a/c/c 3-49's, this fall. RIGHT NOW.....my plan is to utilize a 100gr BH (mechanical). I think I'll be getting +/- 290fps out of this setup.....and my total arrow weight will be in the 375gr. range (+/- 5 gr).
That's +/- 70FPKE.
"IF" I thought I could go with a 125gr head and not require an arrow change (due to spine).....I'd consider it. It would help my FOC.....AND (I assume) my "momentum".
But it would slow my arrow down, I would think, considerably. So how does that compute as far as "diminshing returns"?
Jeff, if you get a chance, chronograph your arrow that you are shooting both with a 100 grain and with a 125 grain and see what the change in KE is.
I ask this out of curiosity because with my set up, I get basically the same KE either way ( I think it was within 1#), based on the formula used for KE.
I can't remember the specifics because it was last year that I did it. But I know I was surprised that the 125 slowed down the arrow enough to keep the KE the same. However, I am assuming the 125gr has more MOMENTUM even though KE is the same. Is this correct?
Disclaimer: There may actually be a few people out there who understand momentum. To those people, this post is not directed at you.
From my seat in the peanut gallery, it appears that "momentum" is a term reserved specifically for the internet smartass know-it-all's who like to pretend that anyone who uses "Kinetic Energy" as a barometer of their arrow's penetration power is an ill-informed illiterate dumbass.
90% of these individuals have no idea how to calculate momentum, and will read this and go look it up, just to spite me and pretend that I'm wrong.They'll be googling over the next hour, trying topuke out somepost-hoc rationaliztion thattheyactually do actually know how to come up with it. It will take them at least a half-hour to figure out the unitary conversions. Somebody may actually suffer a brain aneurysm as a result of this post.
The King is not responsible for any prospective self-inflicted brain damage or psychiatric episodes occuring in correlation to this message.
These idiotscontinue to drop the M-Bomb, in spite of the fact that the entire bowhunting world widely accepts Kinetic Energy as areasonable baseline.
I'd lay a hefty wager that most of these people had never heard of the term "momentum"until one of their internet idols used it ina post.
Disclaimer: There may actually be a few people out there who understand momentum. To those people, this post is not directed at you.
From my seat in the peanut gallery, it appears that "momentum" is a term reserved specifically for the internet smartass know-it-all's who like to pretend that anyone who uses "Kinetic Energy" as a barometer of their arrow's penetration power is an ill-informed dumbass.
90% of these individuals have no idea how to calculate momentum, and will read this and go look it up, just to spite me and pretend that I'm wrong.They'll be googling over the next hour, trying topuke out somepost-hoc rationaliztion thattheyactually do actually know how to come up with it. It will take them at least a half-hour to figure out the unitary conversions. Somebody may actually suffer a brain aneurysm as a result of this post.
The King is not responsible for any prospective self-inflicted brain damage or psychiatric episodes occuring in correlation to this message.
These idiotscontinue to drop the M-Bomb, in spite of the fact that the entire bowhunting world widely accepts Kinetic Energy as areasonable baseline.
I'd lay a hefty wager that most of these people had never heard of the term "momentum"until one of their internet idols used it ina post.
Momentum Schmomentum.
I bet your arrows have tons of momentum flying at 350+.
"Momentum"
) momentum being the most important factor....and NOT KE.
