FDC Graphs of Allegiance vs LX
02-10-2005, 09:03 AM
#31
Nontypical Buck
Join Date: Jan 2005
Location: Upstate New York
Posts: 2,435
RE: FDC Graphs of Allegiance vs LX
Hey Slyvan just go down and pick up an Allegiance and prepaired to be shocked!
02-10-2005, 09:27 AM
#33
Nontypical Buck
Join Date: Feb 2003
Location: Oh USA
Posts: 1,584
RE: FDC Graphs of Allegiance vs LX
pdq:
Read this again, carefully. And, again, what is 350/70? I am also correct, in that, 5 gpp is the standard for IBO competition, as well IBO measurement re: arrow weight when stating IBO speed. It is one component. BowTech's BC speeds are a representation of speed at the particular bow's draw weight and draw length, when shooting an IBO weight arrow of 5 gpp. I don't remember stating that anything other than 70/30/350 was the IBO standard. I merely said 5 gpp was the IBO standard for arrow weight when stating speed. Good hijack, BTW. 
at 5 gpp(IBO standard for competition and measuring arrow speed re: arrow weight).
02-10-2005, 11:01 AM
#36
Join Date: Mar 2004
Location: West CO
Posts: 941
RE: FDC Graphs of Allegiance vs LX
ORIGINAL: Sylvan
You are absolutely correct! It WOULD be an IBO speed IF but it WASN'T so its NOT. You can't measure any way you want and then try to say you've measured to a standard. Enough said!
And to the gentleman that said the BC's arrow speed is not IBO speed. Well it would be if that bow that was tested was a 30'' bow but the BC refers to that individual bow equipped with whatever DL it comes with.
Refer back to Ausie-guys post and read carfully.
The BC says IBO arrow speed NOT IBO speed.
An IBO arrow is 5gpp. There must me a standard for measureing speed of bows other than 30" and 70#
You are just not seeing the forest through the trees[8D]
02-10-2005, 11:39 AM
#38
Thread Starter
Join Date: Nov 2004
Location: Ohio
Posts: 262
RE: FDC Graphs of Allegiance vs LX
ORIGINAL: PABowhntr
Uhh, Blodg, didja catch my post from earlier in this thread? If so then would be kind enough to compare those two figures? Thanks.
Uhh, Blodg, didja catch my post from earlier in this thread? If so then would be kind enough to compare those two figures? Thanks.
What I am trying to get a feel for is which bow actually draws more overall cumulative draw weight during the full length of the draw cycle.
I think we are basically saying the same thing but maybe using different terms. Your example using the cumulative draw weight from 11 to 18 inches is doing the same thing when I listed the stored energy for that same span. Cumulative weight is more applicable when it is converted to stored energy. In simplistic terms this conversion is done by dividing the cumulative draw weight by 12 to convert inch-lbs. to ft-lbs. The actual calculation is a little more involved than that but the above method will get you close.
The LX draws 950.8 lbs over the draw cycle (79.2 ft-lbs).
The Alley draws 1026.1 lbs over the draw cycle (85.5 ft-lbs).
The LX draws 473 lbs from 17 to 24 inches (39.4 ft-lbs)
The Alley draws 443.5 lbs. from 11 to 18 inches (37.0 ft-lbs)
I don't know if my explanation is very clear but I hope this helps.
02-10-2005, 11:46 AM
#39
Join Date: Feb 2003
Location: Chesapeake VA USA
Posts: 135
RE: FDC Graphs of Allegiance vs LX
Just so you guys are aware -- there is no recognized IBO standard.
The AMO (ATA) standard is a real standard as defined by engineering bodies.
IBO measurements are basically an industry accepted criteria.
The manufacturers started using these parameters because it looks more impressive.
The AMO (ATA) standard is a real standard as defined by engineering bodies.
IBO measurements are basically an industry accepted criteria.
The manufacturers started using these parameters because it looks more impressive.
02-10-2005, 12:12 PM
#40
Boone & Crockett
Join Date: Feb 2003
Location: Lehigh County PA USA
Posts: 12,157
RE: FDC Graphs of Allegiance vs LX
The LX draws 950.8 lbs over the draw cycle (79.2 ft-lbs).
The Alley draws 1026.1 lbs over the draw cycle (85.5 ft-lbs).
The LX draws 473 lbs from 17 to 24 inches (39.4 ft-lbs)
The Alley draws 443.5 lbs. from 11 to 18 inches (37.0 ft-lbs)
I don't know if my explanation is very clear but I hope this helps.
The Alley draws 1026.1 lbs over the draw cycle (85.5 ft-lbs).
The LX draws 473 lbs from 17 to 24 inches (39.4 ft-lbs)
The Alley draws 443.5 lbs. from 11 to 18 inches (37.0 ft-lbs)
I don't know if my explanation is very clear but I hope this helps.
Thanks. That is exactly what I am looking for. Basically, from what I am seeing in your comparison chart the Allegiance actually pulls more weight throughout the draw cycle thus giving it higher stored energy numbers. However, the specific shape of the draw force curve gives the apparent feel that it is easier to draw.
I look forward to drawing some back myself especially in comparison to the Freedom cam bows.