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Main Boards => The Bowyer's Bench => Topic started by: Jan Westphal on January 27, 2016, 11:57:00 PM

Title: centered glass lam
Post by: Jan Westphal on January 27, 2016, 11:57:00 PM
Black Widow includes a glass lam in the center of their longbows as I just read last night. It adds draw weight of course but what are the advantages? Torsional stiffness? Speed? Anybody tried this?

Jan
Title: Re: centered glass lam
Post by: Bowjunkie on January 28, 2016, 05:23:00 AM
I've done it with core-tuff glass and carbon. All I noticed is that it adds weight and a pinstripe down the side.
Title: Re: centered glass lam
Post by: Robertfishes on January 28, 2016, 08:22:00 AM
Black Widow puts carbon in their longbow limb core and black fiberglass in their recurve limb core. I assume it is for stability. I have owned a dozen or more of their recurves and I really liked the way they shot.
Title: Re: centered glass lam
Post by: jess stuart on January 28, 2016, 11:28:00 AM
Gordon makes a product called uniweft it is a glass with fibers running in both directions.  Regular glass is unidirectional.  It is supposed to increase torsional stability and help your limb resist.
Title: Re: centered glass lam
Post by: Jan Westphal on January 28, 2016, 12:30:00 PM
Yes, there is a bearpaw stuff called Stabil Core also, not sure whether its a copy cat product off Gordon's. Read different statements about it, most guys who used it did not notice any improvements.

I was just thinking if BW uses it, it must be great    :D
Title: Re: centered glass lam
Post by: Krasus on January 28, 2016, 08:25:00 PM
Core tuff will add 10 lbs to your bow so heads up