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Would you Trade Speed for..
Would u trade speed for KE?
Like going from A/C arrow to a full carbon ? I shoot Easton Super Slims but was thinking of going to a GT pro Hunter... Any Suggestions? |
RE: Would you Trade Speed for..
The difference in the two arrows is prolly not much. The GT's are going to be lighter if you are in the 55/75 spine range but penetration will probably go down. You'll pick up some speed but lose some weight so I think they will perform about the same. I shoot GT XT hunters and am very happy with them but the super slims are excellent arrows as well.
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RE: Would you Trade Speed for..
Your question/answer doesn't make sense. If your bow remains at the same weight and draw length your arrow will not increase KE...ever unless extremes are taken.
A bow has X amount of KE....going to a heavier arrow will slow your bow down however the KE will remain relatively exactly the same. Going to a lighter arrow will increase the speed of the bow but again, the arrow will retain relatively exactly the same KE. Your trading weight for speed but not for KE. The only way KE will change is if you go to a heavier arrow and increase either draw weight or length. I'm refering to relatively the same KE ie within a ftlb or 2 or less but not enough to be that concerned. |
RE: Would you Trade Speed for..
Exactly MO B....I was typing while you were posting.;)
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RE: Would you Trade Speed for..
well the reason I asked is cause it looks like I'll lose 8 lbs of KE by going to GT Pros
GT Pros 64 ft-lbs of Energy A/C Super Slims 72 ft-lbs of Energy Using this Formula: Weight of an arrow; W=mg where m=mass, g=gravitational constant 32.22 ft/s^2 Mass of an arrow ; m=W/g but W is measure in grains, convert grains to lbs 1 lb = 7000 grn m = W(grn)(1lb/7000grn)/32.22 ft/s^2 The basic relationship being used in all calculations is; Kinetic Energy(KE) = 1/2 * m * v^2 (or one-half times mass(of arrow) times velocity squared) Normally people just say KE = arrow weight divided by 451,000 something or other times velocity squared, here's where it comes from; KE = 1/2 X (arrow weight in grains) X (1 lb/7000grn) X v^2 X (1/32.22) 2 X 7000 X 32.22 = 451,080 grn-ft/s^2 and that's where that number comes from. |
RE: Would you Trade Speed for..
Uhhhhh.........I have NO idea what all that foreign language is you have typed there....[&:]
KE= speed x speed x weight / 450,240. You can get pretty close by "guessing" but there's only one way to know for sure. Shoot through a chrono. I'll bet your KE will vary by only a couple pounds. So the question is......Would YOU trade for it?? |
RE: Would you Trade Speed for..
Ahhhh never mind I actually found the error of my calculation after I wrote it out.....[8D]
It actually is not as bad as it came out the first time ..lol See some times just posting all this info down on paper instead of doing it in your head helps a ton See In that calculation I didnt allow the drop in speed switching to the Heavier A/C Slim, thus in a perfect world shooting an arrow at the exact speed it would be a larger diffrence because you are moving more mass at a faster speed. |
RE: Would you Trade Speed for..
Exactly. [&:] [&:][8D]:eek:
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RE: Would you Trade Speed for..
ORIGINAL: mobowhuntr Uhhhhh.........I have NO idea what all that foreign language is you have typed there....[&:] Would YOU trade for it??  |
RE: Would you Trade Speed for..
I guess the better question to ask is there any benefit to shooting a heavier arrow?
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RE: Would you Trade Speed for..
Better downrange momentum, but IMHO, it just ain't worth it if you satisfied w/ your current set up.
KE just isn't as important as it used to be. Don't get me wrong, it's still important, but w/ the advent of todays high tech, major horsepower compound bows, yer gonna get plenty of KE to kill just pretty much darn near anything. Now, if you're a traditional boy, yeah, it makes a major difference. |
RE: Would you Trade Speed for..
Nope... i shoot a super thin shaft myself and like the flight and the speed and the penetration. As long as I am killing deer, not gonna worry about it!
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RE: Would you Trade Speed for..
I personally switched from a light carbon arrow (cx300)to a heavy carbon arrow (terminator hunter 6075) and I like the heavy one better. My bow is quieter, my groups are more consistent especially with broadheads. I was concerned with arrow drop at 30 yards but I couldn't notice any real difference. I'm now shooting cx terminator hunters w/ 125 gr heads out of a 70#/30" draw Hoyt. I only shoot under 30 yards so I don't need a super fast arrow. I'm a hunter period. If I hit a shoulder blade with my heavy setup I'll be glad I have the heavier arrow. If I was into 3d and long shots I'd definitely go with the lighter arrow.
Download the pinwheel software and model different arrows from your setup. It's real infomative. www.pinwheelsoftware.com |
RE: Would you Trade Speed for..
ORIGINAL: gzg38b Download the pinwheel software and model different arrows from your setup. It's real infomative. www.pinwheelsoftware.com |
RE: Would you Trade Speed for..
ORIGINAL: Dwright ORIGINAL: gzg38b Download the pinwheel software and model different arrows from your setup. It's real infomative. www.pinwheelsoftware.com |
RE: Would you Trade Speed for..
I guess the better question to ask is there any benefit to shooting a heavier arrow? |
RE: Would you Trade Speed for..
I'd give up 10-20 f.p.s. for every extra off-day that I could get. Right now, my schedule gives me about5 entire days on stand in archery season since my home state doesn't permit Sunday hunting (that is, if I only attend ONE college football game).I can flex some work around a couple morning/evening hunts here and there, but time is the only thing keeping me from really having a banner season.
I'd gladly trade speed for time. |
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