I am a firm believer in Fast and Flat is where it's At...
A few things run hand in hand with a fast bow... I have heard the more string tension at brace the less hand shock... I know for a fact that good bending fast limbs will give you a nice draw cycle... You can get better feeling draw cycle with limbs bending more towards their base but you will lack in performance...
What I see out there is that 64" seems to be the magic number... If you want longer go with a longer riser and shorter limbs... I draw 29" and 64" works for me... It is 40 lb. bow and gains only .15 lb. at 30"... So it probably starts stacking at 32"... Its all relative and some bows may be drastically different but I did some experimenting and found that a 40 to 50 lb. bow gets the feeling of stacking when it gains .25 to .30 lb. per inch...
My R/D bows are a hair over 64" and take a 62" string... My riser is 19"... I get an average of 184 FPS @ 10 gpp out of my bows... I have gotten as high as 187... I won a 3D event this year against some good shooters... Got a score of 280 out of 30 targets... So the bow shoots well...
I would make the riser as heavy as you can... Maybe use a 1/2" fiberglass I beam and/or some heavy a$$ wood... Depending on you design, make your limbs bend consistent out to about 7 to 8" from the nocks, where they start to stiffen up and the last 3 or so inches should be dead static... My bow is a classic 'D' shape with maybe a hair reflex near the tips...
Fast = Flat = Accurate...
Especially at unknown distances... I suck at judging distance... I know that bow and it's speed buys me points...
Hope this helps...
Topic: Optimal limb length (Read 1262 times)
