Ya'll can keep the speed....I'm goin heavy.
07-18-2008, 09:25 AM
#71
Thread Starter
Join Date: Mar 2004
Location:
Posts: 13,082
RE: Ya'll can keep the speed....I'm goin heavy.
ORIGINAL: Arthur P
Let me clue you to an old trick that I doubt many people know about in these days of light arrows, fast bows and flat trajectories. When you're lining up a 30+ yard shot on an animal and don't know if you're going to clear the limb out there in front of you, take a quick peek at your 20 pin. If the pin is under the obstruction, you're good to go.
That 20 pin will tell you pretty much what the high point of your trajectory is at the distance you're shooting.
Let me clue you to an old trick that I doubt many people know about in these days of light arrows, fast bows and flat trajectories. When you're lining up a 30+ yard shot on an animal and don't know if you're going to clear the limb out there in front of you, take a quick peek at your 20 pin. If the pin is under the obstruction, you're good to go.
That 20 pin will tell you pretty much what the high point of your trajectory is at the distance you're shooting.
07-18-2008, 09:27 AM
#72
Join Date: Dec 2003
Location: Southeast, TX
Posts: 818
RE: Ya'll can keep the speed....I'm goin heavy.
ORIGINAL: TFOX
You are correct for figuring spine and such in archery.In a mathematical equation the entire length should be used.Some say do it the way the picture shows and some do to the end of the shaft,I measure to the end of the shaft personally but the difference is so small it really doesn't matter.
ORIGINAL: txmarshmonkey
TFOX, please correct if I'm misled,but isn't the "length of the arrow" measured without the broadhead and insert. I was under the impression that it was measured from the bottom of the knock groove to the end of the arrow, not including the insert or head.
If your diagram is correct then I need to recalculate my FOC.
ORIGINAL: TFOX
I am a bit of a simpleton,I need pictures.[8D]
I thought you might have been headed in that direction but I can never tell with you.
3/30=.1x100=10%
I am a bit of a simpleton,I need pictures.[8D]
I thought you might have been headed in that direction but I can never tell with you.
3/30=.1x100=10%
If your diagram is correct then I need to recalculate my FOC.
4.5/28.5 = .157x100 = 15.7% FOC
Sorry mobow for hijacking you thread a little, just trying to figure things out.
07-18-2008, 03:34 PM
#73
Giant Nontypical
Join Date: Feb 2003
Location: HENDERSON KY USA
Posts: 6,634
RE: Ya'll can keep the speed....I'm goin heavy.
ORIGINAL: Arthur P
Let me clue you to an old trick that I doubt many people know about in these days of light arrows, fast bows and flat trajectories. When you're lining up a 30+ yard shot on an animal and don't know if you're going to clear the limb out there in front of you, take a quick peek at your 20 pin. If the pin is under the obstruction, you're good to go.
That 20 pin will tell you pretty much what the high point of your trajectory is at the distance you're shooting.
Let me clue you to an old trick that I doubt many people know about in these days of light arrows, fast bows and flat trajectories. When you're lining up a 30+ yard shot on an animal and don't know if you're going to clear the limb out there in front of you, take a quick peek at your 20 pin. If the pin is under the obstruction, you're good to go.
That 20 pin will tell you pretty much what the high point of your trajectory is at the distance you're shooting.
07-18-2008, 03:36 PM
#74
Giant Nontypical
Join Date: Feb 2003
Location: HENDERSON KY USA
Posts: 6,634
RE: Ya'll can keep the speed....I'm goin heavy.
ORIGINAL: txmarshmonkey
Assuming the BH + insert adds 1.5 inches to the length of the arrow in this illustration. If we calculated FOC using the other method, would this be accurate?
4.5/28.5 = .157x100 = 15.7% FOC
Sorry mobow for hijacking you thread a little, just trying to figure things out.
ORIGINAL: TFOX
You are correct for figuring spine and such in archery.In a mathematical equation the entire length should be used.Some say do it the way the picture shows and some do to the end of the shaft,I measure to the end of the shaft personally but the difference is so small it really doesn't matter.
ORIGINAL: txmarshmonkey
TFOX, please correct if I'm misled,but isn't the "length of the arrow" measured without the broadhead and insert. I was under the impression that it was measured from the bottom of the knock groove to the end of the arrow, not including the insert or head.
If your diagram is correct then I need to recalculate my FOC.
ORIGINAL: TFOX
I am a bit of a simpleton,I need pictures.[8D]
I thought you might have been headed in that direction but I can never tell with you.
3/30=.1x100=10%
I am a bit of a simpleton,I need pictures.[8D]
I thought you might have been headed in that direction but I can never tell with you.
3/30=.1x100=10%
If your diagram is correct then I need to recalculate my FOC.
4.5/28.5 = .157x100 = 15.7% FOC
Sorry mobow for hijacking you thread a little, just trying to figure things out.
NO,because the balance point will not change by the full 1 1/2".It would probably only change by about a 1/4".
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