From: HEXX
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Date: 22-Mar-21 |
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If you have been following my experiment with quieting my shot, I have come to the end ( hopefully ). I never tried spray foam in the shaft but I did use 1/4" backer rod foam, styrofoam and backer rod in 4" pieces. Using a sound meter the 1/4" ( sanded and stretched to fit ) showed 3 decibels less and 4FPS slower and added 10 grains to the arrow. The styrofoam weighed more by 3 grains more than the backer rod and 1FPS faster. The backer pieces showed no difference in sound or speed but 2 grains lighter. Four people could tell the difference in the sound that foam makes. I have learned a lot in my off season journey. I think foam would make a greater difference in aluminum as opposed to my carbon. If interested I'am open to questions about the details or just PM me. Thanks.
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From: Frisky
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Date: 22-Mar-21 |
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HEXX- I shouldn't say this, but there's soon (a matter of a few weeks) going to be a way you can drop noise of your shot down to nothing. I mean, where you can't hear the shot! You don't have to add weight to your arrows. I have a new product that gets rid of bow noise. I'll tell you more latter on.
Joe
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From: George D. Stout
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Date: 22-Mar-21 |
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I'm still waiting for Frisky's mythical brush buttons.
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From: Gorbin
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Date: 22-Mar-21 |
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Uh oh. There's something strangely familiar with, "I have a new product... I'll tell you more latter." Replace 'product' with 'system' and you'll see what I mean. LOL!
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From: JusPassin
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Date: 22-Mar-21 |
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Since it's the bow making most of the noise, not the arrow I wouldn't hold my breath.
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From: fdp
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Date: 22-Mar-21 |
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Now Gorbin.......LOL!
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From: Live2Hunt
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Date: 22-Mar-21 |
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I wish Frisky would hurry up, I have a Super K that is loud. String silencers, velcro on the curves, I need something more.
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From: Dartwick
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Date: 22-Mar-21 |
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I think the main thing you should be checking with the viability of foam in arrows is spine.
Id like to see the spine measured on 12 "identical" arrows and then see the spines of all measured on all 12 after foam has been added.
While you at it you should also measure before and after weight and FOC.
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From: HEXX
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Date: 22-Mar-21 |
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Spine did not change ( I heard it did with the spray ). FOC stayed at 11% because the foam was uniform from end to end of the shaft.
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From: fdp
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Date: 22-Mar-21 |
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If overall weight of the shaft increased the FOC measurement would have to change.
It's reads as if the heavier arrow was faster than the lighter arrow?
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From: Frisky
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Date: 22-Mar-21 |
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LOL! I'll tell a little more here. We've long needed better brush buttons. Just over a week ago, I tried new ones I designed. I wasn't hoping for much, as they were not supposed to be as good as they final product. I was shocked! I was stunned! The spare string for my TD was noisy. It's's FF and thin. So, I put my brush buttons on it. I set the bow and string outside, for an hour, as I wanted them to cool down. The colder the BBs are, the noisier. At my first shot, ALL bow noise was gone! Dead silent! I shot one silent shot after another! It was only 54 degrees out, so they might be noisy at 30 degrees. However, my new material should be good down below that. We'll have to see.
Joe
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From: Smokey
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Date: 22-Mar-21 |
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Joe,are they made from the same stuff that made that old model T fly in that old movie........forget the name of the movie.....
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From: Poppy
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Date: 22-Mar-21 |
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Flubber
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From: Frisky
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Date: 22-Mar-21 |
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LOL! They are made of Flubber. Wait until I introduce them!
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From: Cameron Root
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Date: 22-Mar-21 |
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Foam huh. My last set of carbon are 6.5 easton with 100 grains of que tips wrapped in duct tape on the stem 2 wraps on the first 3 on tip end 1 wrap on the rest ha ha always something to stick in a hole. Rooty
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From: HEXX
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Date: 22-Mar-21 |
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fdp, the balance point would not change and the balance point to the front of the shaft would not change. Unless my math or the chrony was off - here are the weights : Hollow shaft = 353.4 grains, 1/4" one length backer rod = 362.7 grains, styrofoam pieces = 364.2 grains, backer rod dia. cut to fit pieces = 361.1 grains. Three arrows of each type shot through chrony to get an average. Am I missing something (?)
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From: fdp
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Date: 22-Mar-21 |
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If the overall weight of the bareshaft changed (got heavier by 10grs.?) with the addition of the foam filler, and the head weight stayed the same, how could the FOC not have changed? It may not have changed significantly, but it had to change.
I'm still confused/curious how the heavier arrow (if my reading what you wrote in first post correctly) was faster than the lighter arrow.
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From: Dan In MI
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Date: 22-Mar-21 |
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I need to see clearer definition of each set up.
Are you saying 1/4” backer rod full length, full diameter backer foam full length (pieced together) and full length stuffed with styrofoam pieces?
Grobin, the thought has me starry eyed.
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From: Sparky
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Date: 22-Mar-21 |
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Smokey - Chitty Chitty Bang Bang maybe
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From: Jeff Durnell
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Date: 23-Mar-21 |
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Part of keeping it simple for me is to shoot bows and arrows that are inherently quiet and don't require such problem solving. But what fun is that? ;^)
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From: olddogrib
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Date: 23-Mar-21 |
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Don't be misled....Frisky's found an ACME ultra-high frequency button transmitter (like the car grill devices) that only deer and dogs can hear. This hopefully renders the deer temporarily deaf, allowing him to finally sneak up and kill one. (Think Frisk E. Coyote) I hope his dog bites him, or make that his cat...if this one hasn't runn'd oft too!
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From: hawkeye in PA
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Date: 23-Mar-21 |
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LOL olddogrib. I'm figuring it's cat hair balls.
Sorry OP for off topic, your experiment has been interesting.
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From: Wild Bill
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Date: 23-Mar-21 |
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OH NO! "star" silencers? Get me outta here!
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From: George D. Stout
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Date: 23-Mar-21 |
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I found a photo of Frisky's laboratory. Credit to Rube Goldberg.
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From: HEXX
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Date: 23-Mar-21 |
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To clarify : I used 1/4" backer rod foam, cut one piece full length of arrow. I cut 4" long pieces cut from center of 3/4" backer rod with a 1716 piece of aluminum shaft ( 7x4=28" ). The styrofoam was cut using the same aluminum shaft with a 2x4 block of styrofoam. See the previous thread " foam update ". hope this helps.
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From: HEXX
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Date: 24-Mar-21 |
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fop, 1FPS is not much and maybe within the +/- of the chrony. My plan now is to start adding !/4" one piece to all my arrows for 3D and hunting. 10 grains per arrow is not much and it may quiet my shot for high strung whitetails. It's work but I don't see any other downside.
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From: fdp
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Date: 24-Mar-21 |
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HEXX the only downside is that you haven't unraveled where this strange noise is coming from that you think might spook critters.
I and may other folks before me have killed lots of animals with aluminum arrows, and shot 1,00's of shots with them, and I have to say that I haven't encountered what you describe.
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From: HEXX
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Date: 24-Mar-21 |
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Deer where I hunt seem never relaxed, probably due to hunting pressure. In 1960 I shot Bear grizzly with a twang when I shot. The deer would be gone when the arrow got there. I tied rubber bands every inch where the string wasn't served. That worked. If you ever watched " Bowhunting October whitetails " you can see how fast a deer can duck an arrow, even from a compound. If you never had this problem, I envy you. I like flat trajectory for 3D ( maybe my range estimation is not that good ). That requires a fast bow and a light arrow. I am trying to find the right balance between the two. Quiet is for hunting and that would be a bonus for me at least.
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