string material
Question:
Can any body explain the differences in the performance of using dacron as against fastflight for bow strings.
Response:
Hi Mick I recommend you visit the BCY web site at http://www.bcyfibers.com/ for comprehensive specifications of the various types of string material currently available. There is also an article on the subject on the Edersbow site at <http://www.edersbow.com/publication/pub_f.cfm?page=1999/march/strings… lt.cfm> (Both of these sites can be found from my page of archery links located at http://lisp.com.au/~robmoore/flra/links.htm … just to give it a bit of a plug) Regards Rob
– Hide quoted text — Show quoted text -> Can any body explain the differences in the performance of using dacron as > against fastflight for bow strings.
Response:
More on the Edersbow link! The Edersbow URL is accurate as it is a straight copy and paste but I can see it’s not going to work properly… you will probably have to go the the Edersbow site and use their search engine to search for ’strings’ Rob > Hi Mick > I recommend you visit the BCY web site at http://www.bcyfibers.com/ > for comprehensive specifications of the various types of string material > currently available. > There is also an article on the subject on the Edersbow site at
<http://www.edersbow.com/publication/pub_f.cfm?page=1999/march/strings… – Hide quoted text — Show quoted text -> lt.cfm> > (Both of these sites can be found from my page of archery links located at > http://lisp.com.au/~robmoore/flra/links.htm … just to give it a bit of a > plug) > Regards > Rob > Can any body explain the differences in the performance of using dacron > as > against fastflight for bow strings.
Response:
Dacron B50 has a strand breaking strength of 50 pounds with a diameter of 0.018. It does stretch and can stretch more with time and needs waxing to maintain it. FastFlight has a strand breaking strength of 160 pounds with a diameter of 0.023. It does not stretch or stretch with time and does not need as much waxing to maintain it. You can therfore make a Fastflight bowstring that is ‘thinner’ , lighter and much more consistent than a Dacron bowstring. It will also shoot an arrow further due to a ‘quicker’ bowstring travel. The only disadvantage using Fastflight is that due to its no stretch property, it will put more stress on the limb tips, but most modern bows can take Fastfilght bowstrings now.
– Hide quoted text — Show quoted text -> Can any body explain the differences in the performance of using dacron as > against fastflight for bow strings.
Response:
Fastflight strings will stretch. They are considerably less than dacron but they do stretch. Ask a compound shooter if their fastflight string will stretch. Archeryking
– Hide quoted text — Show quoted text -> Dacron B50 has a strand breaking strength of 50 pounds with a diameter of > 0.018. It does stretch and can stretch more with time and needs waxing to > maintain it. > FastFlight has a strand breaking strength of 160 pounds with a diameter of > 0.023. It does not stretch or stretch with time and does not need as much > waxing to maintain it. > You can therfore make a Fastflight bowstring that is ‘thinner’ , lighter and > much more consistent than a Dacron bowstring. It will also shoot an arrow > further due to a ‘quicker’ bowstring travel. > The only disadvantage using Fastflight is that due to its no stretch > property, it will put more stress on the limb tips, but most modern bows can > take Fastfilght bowstrings now. > Can any body explain the differences in the performance of using dacron > as > against fastflight for bow strings.
Response:
I don’t know what is happening, but the manufacturers of newer bowstring material are claiming that string stretch and string creep is much less now than in the past. Check out www.bcyfibers.com where they list the characteristics of various string materials. Naturally, they claim that their stuff is better than the competition, but I can’t help but think that Brownell has the same materials, or are working on them. Also, you should know that there is a difference between stretch and creep. Stretch is like a rubber band, you stretch it out, but when you release the tension in it, it springs back. All bowstring material stretches, although spectra/dyneema/fast-flight stretch very little. Even the wonder materials like those used in S4 or 450 stretch. Then there is creep. Creep is a more permanent elongation. With creep you apply tension and the string gets longer, but when you release tension it doesn’t spring back to it’s original length. S4 and 450 are supposed to have virtually no creep. Marty Sasaki
Response:
>Can any body explain the differences in the performance of using dacron as >against fastflight for bow strings.
Dacron is a a "stretchy" material compared to strings like Fastflight. A typical string made from Dacron will be thicker than one made from Fastflight (which has a higher breaking strain per strand then dacron) Since Fastflight doesn’t have as much "give" than Dacron, it is not recommended for use on wooden risers, as too much strain is placed on the riser, whch could eventually break 
( However, most modern metal risers can shoot fastflight and similar strings OK…. I’ve got a fastflight string on my Samick Agulla bow, and it shoots a lot better than when i had a dacron string on it! hope this helps, regards brian ( I wouldn’t class myself as an archery tech expert, so if i’ve made any errors, then i apologize!!!)
Response:
Is there a formula or a rule of thumb for figuring out how many strands of bow string to use for different draw weights? Morb
– Hide quoted text — Show quoted text ->Can any body explain the differences in the performance of using dacron as >against fastflight for bow strings. > Dacron is a a "stretchy" material compared to strings like Fastflight. > A typical string made from Dacron will be thicker than one made from > Fastflight (which has a higher breaking strain per strand then dacron) > Since Fastflight doesn’t have as much "give" than Dacron, it is not > recommended for use on wooden risers, as too much strain is placed on > the riser, whch could eventually break ( > However, most modern metal risers can shoot fastflight and similar > strings OK…. > I’ve got a fastflight string on my Samick Agulla bow, and it shoots a > lot better than when i had a dacron string on it! > hope this helps, > regards > brian > ( I wouldn’t class myself as an archery tech expert, so if i’ve made > any errors, then i apologize!!!)
Response:
That might depend on what kind of string material you are using. I think I always used either 16 or 18 strand for fast flight (polypropalene (sp?)), depending on whether I was drawing low 40’s or high 40’s. Don’t think I ever saw a formula though.
– Hide quoted text — Show quoted text -> Is there a formula or a rule of thumb for figuring out how many strands of > bow string to use for different draw weights? > Morb > >Can any body explain the differences in the performance of using dacron > as > >against fastflight for bow strings. > Dacron is a a "stretchy" material compared to strings like Fastflight. > A typical string made from Dacron will be thicker than one made from > Fastflight (which has a higher breaking strain per strand then dacron) > Since Fastflight doesn’t have as much "give" than Dacron, it is not > recommended for use on wooden risers, as too much strain is placed on > the riser, whch could eventually break ( > However, most modern metal risers can shoot fastflight and similar > strings OK…. > I’ve got a fastflight string on my Samick Agulla bow, and it shoots a > lot better than when i had a dacron string on it! > hope this helps, > regards > brian > ( I wouldn’t class myself as an archery tech expert, so if i’ve made > any errors, then i apologize!!!)
Response:
Fastflight and dyneema (they’re polyethylene fibres, by the way) are both strong enough that you don’t need as many strands to be safe, as you do to be comfortable. So you make the string up with enough strands to make a good "rope" and fit your nocks properly. It doesn’t help that different manufacturers use different strand thicknesses, so you’re probably looking at 16-18 strands for FF (say) but 20-22 for Angel Dyneema (I think) – average sort of setup. Dacron strings of a similar size were only using 12? 14? strands. – Hide quoted text — Show quoted text -> That might depend on what kind of string material you are using. I think I > always used either 16 or 18 strand for fast flight (polypropalene (sp?)), > depending on whether I was drawing low 40’s or high 40’s. Don’t think I > ever saw a formula though. > Is there a formula or a rule of thumb for figuring out how many strands > of > bow string to use for different draw weights? > Morb > > >Can any body explain the differences in the performance of using > dacron > as > > >against fastflight for bow strings. > > Dacron is a a "stretchy" material compared to strings like Fastflight. > > A typical string made from Dacron will be thicker than one made from > > Fastflight (which has a higher breaking strain per strand then dacron) > > Since Fastflight doesn’t have as much "give" than Dacron, it is not > > recommended for use on wooden risers, as too much strain is placed on > > the riser, whch could eventually break ( > > However, most modern metal risers can shoot fastflight and similar > > strings OK…. > > I’ve got a fastflight string on my Samick Agulla bow, and it shoots a > > lot better than when i had a dacron string on it! > > hope this helps, > > regards > > brian > > ( I wouldn’t class myself as an archery tech expert, so if i’ve made > > any errors, then i apologize!!!)
Before you buy.
Response:
Oh i think 450+ is great stuff .. I’d like to shoot it myself. I shoot FF right now only because it’s readily available, and it works pretty well. Han Su Kim
Response:
Greetings Stefan… I have made a few bowstrings in my time. My one suggestion, no matter what string you use, is to prestretch the completed string. Hang a heavy weight on the string for about a week. Make the weight about 30% more then the draw weight of the bow. Has always worked for me. Just my two pesos worth… Larry Garland Tx – Hide quoted text — Show quoted text – > The string on my single cam Browning is due for replacment and instead of > buying a pre-made one i want too have ago at making my own, thing is theres > so many materials too choose from. The string i use at the moment is > fastfight but it seems to have stretched (creeped) an awful lot so one that > does’nt would be good. Some materials i have heard of are Fastflite S4, > Martin TX6 Pro Braid, BCY Streamline and BCY 450 Plus. Please can i have > some opinions on these and any others that might be suitable. I also need a > very grippy serving thread thats hard wearing, as the serving seperates at > the point at which it meets the sharp radius on the cam, it doesn’t seem to > effect the performance but i would be happier if it didn’t. > many thanks > stef.
Response:
Has anyone done comparisons between Angel ASB and the BCY 450+ or DynaFlight97 ? I picked the two BCY fibres from their web site due to the stand strength and longevity. Are there any similar tests on the ASB, and do they have a web site?
Response:
The string on my single cam Browning is due for replacment and instead of buying a pre-made one i want too have ago at making my own, thing is theres so many materials too choose from. The string i use at the moment is fastfight but it seems to have stretched (creeped) an awful lot so one that does’nt would be good. Some materials i have heard of are Fastflite S4, Martin TX6 Pro Braid, BCY Streamline and BCY 450 Plus. Please can i have some opinions on these and any others that might be suitable. I also need a very grippy serving thread thats hard wearing, as the serving seperates at the point at which it meets the sharp radius on the cam, it doesn’t seem to effect the performance but i would be happier if it didn’t. many thanks stef.
Response:
: All string material will stretch. Fastflight does tend to strectch more : than 450 Plus, S4 and other’s you’ve mentioned, but even these strings will : have an initial creep. : To a certain point, they will stop stretching and stay at that level : including fast flight. I tend to find that fast flight creeps up to 1/2 an : inch and then stops .. at which point you take the string off .. twist it to : make it a little shorter, and reinstall it. 450 Plus I think creeps about : 1/8 to 1/4 … less but still there is some creep This must be on a target recurve. The force and string length of a single cam compound can result in much greater stretch (lots of energy going into a 100 inch or so string). The BCY web page has a good comparison of stretch. Fast Flight stretched 5x as much as the 450+ in 24 weeks of test. -Scot — *** ANTI-SPAM ALERT *** Note the "removethis." in the return address. *** Scot E. Heath, P.E. "Nothing beats turning clay to dust." Fort Collins, CO
Response:
All string material will stretch. Fastflight does tend to strectch more than 450 Plus, S4 and other’s you’ve mentioned, but even these strings will have an initial creep. To a certain point, they will stop stretching and stay at that level including fast flight. I tend to find that fast flight creeps up to 1/2 an inch and then stops .. at which point you take the string off .. twist it to make it a little shorter, and reinstall it. 450 Plus I think creeps about 1/8 to 1/4 … less but still there is some creep Han Su Kim
