Main Discussion Area > Arrows
Spine/paradox etc.
TSA:
this is a video i have posted a few times.
IMHO the best one out there.
what i really like, is how easy it is to see in the well tuned setup, that the arrow does not touch the bow at all- bar the first inch or two upon release.
That naturally leads to questioning the theories about how a tapered shaft " clears the riser better"
https://www.youtube.com/watch?v=96KGWC0PB6s
joachimM:
TSA, good video. Still, that seems to be a centershot bow, no?
J
Del the cat:
I believe the string slipping sideways off the fingers starts the sideways motion at the nock and the acceleration then causes the arrow to bend.
There is some slo-mo vid on my Youtube chanel... mostly flight arrows which are a underspined because of the low weight and very low point weight.
"shot 2" shows the start of the flexing nicely :)
https://www.youtube.com/watch?v=ZAHRLIekjVU
https://www.youtube.com/watch?v=8iTWSITIHR8
There is also some footage from the shooting machine...
https://www.youtube.com/watch?v=SOcrM7FMQSI
Del
DC:
I'm still going through the videos trying to see what is happening. I'm changing my mind on a few things. One is when the arrow is too bendy. I previously thought that with the arrow bending too much it just gets launched sideways. What it's looking like to me now is that it bends too much and recovers soon enough for the rear of the arrow to smack the handle. This kicks the back of the arrow off to the left. Del's second video, second arrow shows what I think I'm seeing. I noticed the same thing on Puujousi's (Tuomo) videos. I thought this is what happened when the arrow was too stiff. Some of it is very puzzling as two things can cause the same results. Like poor release can seem to mimic low spine. This will keep my brain ticking over :D
willie:
always an interesting study of a number of factors that make for a well tuned set up.
Joachim, Tuomo has quite a bit of footage uploaded to his channel
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