Does Kinetic Energy = Penetration?
#191
Giant Nontypical
Joined: Feb 2003
Posts: 9,175
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I've resisted asking this every time the pine needle in the tornado scenario has been brought up, but what the heck... Anyone considered the possibility that the twister bent and twisted the pole/tree and seperated the wood fibers, letting the pine needle get blown into the gap and getting stuck when the wind passed and the wood straightened up?
#192
I did some testing based on the pine needle and 2 by 4 theory and here are my results.
A pine needle doesn't shoot very well out of a bow.
I didn't get to shoot the 2 by 4 because my bow blew up shooting the pine needle.<img src=icon_smile_tongue.gif border=0 align=middle>
Seriously, Arthur, do you think that having a higher FOC (15%+) with those long carbons would help? I wonder if shooting a lower profile 150 grain broadhead or heavier would fly better. It's worth a try if you have them.
A pine needle doesn't shoot very well out of a bow.
I didn't get to shoot the 2 by 4 because my bow blew up shooting the pine needle.<img src=icon_smile_tongue.gif border=0 align=middle>
Seriously, Arthur, do you think that having a higher FOC (15%+) with those long carbons would help? I wonder if shooting a lower profile 150 grain broadhead or heavier would fly better. It's worth a try if you have them.
#193
Giant Nontypical
Joined: Feb 2003
Posts: 9,175
Likes: 0
HuntingBry, The 145's I tried were Bear Razorheads with bleeders installed. You can't get much lower profile than that and I don't know of any mechanicals that go that heavy. I do still have some 160 gn Muzzy Matador's from some years back that I could get crazy with, but I'm afraid I'd overamp my arrow spine. And I'm not really sure I want to take them out of their original packaging. Might be worth a little something to a broadhead collector someday.
Too bad about your bow. I'd have liked to seen the chronograph numbers on the 2X4. <img src=icon_smile_wink.gif border=0 align=middle>
Edited by - Arthur P on 08/23/2002 14:36:26
Too bad about your bow. I'd have liked to seen the chronograph numbers on the 2X4. <img src=icon_smile_wink.gif border=0 align=middle>
Edited by - Arthur P on 08/23/2002 14:36:26
#194
Arthur
Come on,you know you want to.just do it.
I here some Steelhead 125's calling your name. <img src=icon_smile_big.gif border=0 align=middle>
Before this discussion is over I'll be shooting 500 gr arrows with 2 bladers and you'll be shooting 500 gr carbons with Rockets.<img src=icon_smile_tongue.gif border=0 align=middle><img src=icon_smile_approve.gif border=0 align=middle><img src=icon_smile_wink.gif border=0 align=middle>
Silent Assasin.
I have tested light against heavy and found out of my bow at 16 yards that my 356gr arrows did better than all the other arrows.I was shooting at board and styrofoam.When I went back to 20 yards I found the 700 gr carbons were busting the board and they were doing better.The 356 gr arrow was still a close 2'nd.These arrows were identical,I added weight inside the carbon to get it that heavy and I kept the foc about the same.
These arrows were Stingers and they spine out to 100# so the weight I added was most likely still ok.All of these arrows did best at 12% foc.
I changed the style of arrow to a traditional stinger and the weight on it was 420gr.The diameter was slightly bigger and it had 3" feathers.I tested it with 3 different heads and the one that did the best was the 1 that produced an foc of 18%.The others were less.This head and arrow almost shot completely through the board.The fletching was the only thing that stopped it.None of the others even came close to shooting through the board.The mass thickness of this arrow is what I think contributed do it's succes,or the fact it is a parallel to taper design and it punched a bigger hole and when the arrow got to the taper it had less friction to hold it back.
I will have to stick to the notion that the arrow makes the biggest difference and weight and ke are just guide lines.
Come on,you know you want to.just do it.
I here some Steelhead 125's calling your name. <img src=icon_smile_big.gif border=0 align=middle>
Before this discussion is over I'll be shooting 500 gr arrows with 2 bladers and you'll be shooting 500 gr carbons with Rockets.<img src=icon_smile_tongue.gif border=0 align=middle><img src=icon_smile_approve.gif border=0 align=middle><img src=icon_smile_wink.gif border=0 align=middle>
Silent Assasin.
I have tested light against heavy and found out of my bow at 16 yards that my 356gr arrows did better than all the other arrows.I was shooting at board and styrofoam.When I went back to 20 yards I found the 700 gr carbons were busting the board and they were doing better.The 356 gr arrow was still a close 2'nd.These arrows were identical,I added weight inside the carbon to get it that heavy and I kept the foc about the same.
These arrows were Stingers and they spine out to 100# so the weight I added was most likely still ok.All of these arrows did best at 12% foc.
I changed the style of arrow to a traditional stinger and the weight on it was 420gr.The diameter was slightly bigger and it had 3" feathers.I tested it with 3 different heads and the one that did the best was the 1 that produced an foc of 18%.The others were less.This head and arrow almost shot completely through the board.The fletching was the only thing that stopped it.None of the others even came close to shooting through the board.The mass thickness of this arrow is what I think contributed do it's succes,or the fact it is a parallel to taper design and it punched a bigger hole and when the arrow got to the taper it had less friction to hold it back.
I will have to stick to the notion that the arrow makes the biggest difference and weight and ke are just guide lines.
#195
Joined: Feb 2003
Posts: 255
Likes: 0
From: Sheboygan WI USA
A few things to help explane soem analogies.
1: The needle in the phone pole. The idea is that speed alone does the job. you could add a 1 lb weight to the straw, and throw it fast enough to have LOTS of ft/lb.buyt it wouldn;t penetrate.
2: ping pong balls do fall as fast as bowling balls. The ping pong balls reach their maximum velocity very quickly as there is not enough mass to defeat the air resistance.
3: heavier arrows SHOULD keep their speed longer than light arrows PROVIDED they are the same size and shape (length,fletching, and diameter) as long as the coefficiant of drag (Cg) is the same, the heavier arrow will keep it's speed longer. Now if one has feathers (high Cg) and the other vanes (low Cg) the one with vanes would have an advantage.
1: The needle in the phone pole. The idea is that speed alone does the job. you could add a 1 lb weight to the straw, and throw it fast enough to have LOTS of ft/lb.buyt it wouldn;t penetrate.
2: ping pong balls do fall as fast as bowling balls. The ping pong balls reach their maximum velocity very quickly as there is not enough mass to defeat the air resistance.
3: heavier arrows SHOULD keep their speed longer than light arrows PROVIDED they are the same size and shape (length,fletching, and diameter) as long as the coefficiant of drag (Cg) is the same, the heavier arrow will keep it's speed longer. Now if one has feathers (high Cg) and the other vanes (low Cg) the one with vanes would have an advantage.
#196
Joined: Feb 2003
Posts: 2,413
Likes: 0
From:
<BLOCKQUOTE id=quote<font size=1 face='Verdana, Arial, Helvetica' id=quote>quote:<hr height=1 noshade id=quote>
1: The needle in the phone pole. The idea is that speed alone does the job. you could add a 1 lb weight to the straw, and throw it fast enough to have LOTS of ft/lb.buyt it wouldn;t penetrate.<hr height=1 noshade id=quote></BLOCKQUOTE id=quote></font id=quote><font face='Verdana, Arial, Helvetica' size=2 id=quote>
Why?
<BLOCKQUOTE id=quote><font size=1 face='Verdana, Arial, Helvetica' id=quote>quote:<hr height=1 noshade id=quote>2: ping pong balls do fall as fast as bowling balls. The ping pong balls reach their maximum velocity very quickly as there is not enough mass to defeat the air resistance.<hr height=1 noshade id=quote></BLOCKQUOTE id=quote></font id=quote><font face='Verdana, Arial, Helvetica' size=2 id=quote>
Are you sure?

1: The needle in the phone pole. The idea is that speed alone does the job. you could add a 1 lb weight to the straw, and throw it fast enough to have LOTS of ft/lb.buyt it wouldn;t penetrate.<hr height=1 noshade id=quote></BLOCKQUOTE id=quote></font id=quote><font face='Verdana, Arial, Helvetica' size=2 id=quote>
Why?
<BLOCKQUOTE id=quote><font size=1 face='Verdana, Arial, Helvetica' id=quote>quote:<hr height=1 noshade id=quote>2: ping pong balls do fall as fast as bowling balls. The ping pong balls reach their maximum velocity very quickly as there is not enough mass to defeat the air resistance.<hr height=1 noshade id=quote></BLOCKQUOTE id=quote></font id=quote><font face='Verdana, Arial, Helvetica' size=2 id=quote>
Are you sure?

#197
Joined: Feb 2003
Posts: 328
Likes: 0
From: Hilliard OH USA
This harkins back to the old "Which falls faster a feather or a marble" question....
Greg
"Getting close to the game is the joy of Bowhunting for me, the harvest is a bonus."

Live 15 ft Python after eating a small Antelope!
Greg
"Getting close to the game is the joy of Bowhunting for me, the harvest is a bonus."

Live 15 ft Python after eating a small Antelope!
#198
Giant Nontypical
Joined: Feb 2003
Posts: 9,175
Likes: 0
But if A^2 + B^2 = C^2, how long would it take a monkey with a wooden leg to kick all the seeds out of a watermelon?
TFOX, make sure you're sitting down before you read the following...
After shooting these new carbons I've got, I figure I've finally found carbon arrows that are good enough to hunt with. Unless I'm confronted with a disaster on the first animal, I will hunt an entire season with these arrows AND I'll use Rocket Steelheads. There. Carbons and mechanicals. Been doing things my way for 40 years with no complaints but I might as well try this newfangled stuff.
But I ain't huntin' with no stinkin' sights or releases! Forget that! <img src=icon_smile_wink.gif border=0 align=middle>
TFOX, make sure you're sitting down before you read the following...
After shooting these new carbons I've got, I figure I've finally found carbon arrows that are good enough to hunt with. Unless I'm confronted with a disaster on the first animal, I will hunt an entire season with these arrows AND I'll use Rocket Steelheads. There. Carbons and mechanicals. Been doing things my way for 40 years with no complaints but I might as well try this newfangled stuff.
But I ain't huntin' with no stinkin' sights or releases! Forget that! <img src=icon_smile_wink.gif border=0 align=middle>
#199
Arthur, I almost pulled a Fred Sanford there and had the "big one."<img src=icon_smile_wink.gif border=0 align=middle> I don't think you'll have any problems with the KE you'll be putting out. Good luck this year.


