This week on Archery 101, I run some test to see just how much speed does an arrow really lose.
Пікірлер: 85
@billehlers76746 жыл бұрын
Greg as always, thanks for the time you put into these to bring us the information. Still being new to the sport I find it all interesting and fun. Thank you!
@TheNockingPoint6 жыл бұрын
Greg. According to Cliff Clavin, It’s a little known fact. That decrease in velocity drop off at 10 yards is due to the arrows having to spin up from the "Helical Fletching" in the first 10 yards. After the initial 10 yards, the arrow is fully spun up and the rotational energy pushes the fletching and it causes propulsion via the fletching. Like a boat prop. ;-) cheers
@Jazzman-bj9fq6 жыл бұрын
Haha, wow... Until I recognized the name Cliff Clavin after the 3rd readthrough, I was about to throw my slide ruler at someone.... Ok, you got me, well done!
@TheNockingPoint6 жыл бұрын
:-)
@ramoverde41335 жыл бұрын
✔👍
@jake41943 жыл бұрын
Wow very cool
@mandostudent6 жыл бұрын
Hey Greg! I'v been following you for many months now and I love your enthusiasm and your love for traditional archery. I have been shooting traditional for approx 30 years and slowly evolved into a not too consistent snap shooter. After seeing your vids on gap shooting I must say after a few months of practice, my accuracy has improved so much its really fun again. thank you again hope to meet you face to face sometime in the future. Joe Butler florida
@TradArchery1016 жыл бұрын
Thank you for the kind words.
@kevinplus3adventures6446 жыл бұрын
Greg great video. Love what you said in the first part. I started laughing. It's very interesting once you get into the difference of fast arrows vs slow arrows. I know it had to be hard shooting through that small of space at 25-30 yards.
@NaturalBowWoman6 жыл бұрын
Really good information and thankyou for the headstart because I was going to be researching into it soon🏹😀
@davesalisbury73616 жыл бұрын
Thanks Greg for doing this as it is interesting to known what an arrow does for real as it travels and not what a machine makes it do. Now you need set the chrono up in one foot increases to find exactly where the arrow starts slowing down using the thinnest and fattiest arrows. ONLY JOKING.
@chuckminick95112 жыл бұрын
As usual every time I watch your channel I learn , thank you .
@jcann3135 ай бұрын
This is a very informative video. I have developed a theory. The fletching is going to spin the arrow. The first 10 yards the arrow goes from 0 rpm spinning to some high rpm. Once the rpm maxes out the drag decreases. At first the spiral fletching catches a lot of wind with no spin. I don't know how you kept the arrows inside the chrono. Great shooting. You could also have some fishtailing causing velocity loss when the arrow is yawed a lot but when the yaw angle is straight the velocity loss would be low. Precise arrow tuning has it's advantages I think.
@nihallee6 жыл бұрын
Great video and idea!!! This is helpful when trying to make purchase decision and also when switching from one bow to another. It gives a general idea of what's going on. Very good info in there! Thanks so much and keep it up Greg!!!
@Fudmottin6 жыл бұрын
I might be getting 150fps out of my short bow. When I'm shooting more consistently, I'll try and chrono it. No surprises on the early loss of velocity. I think you are probably right about why. The arrow should fly more efficiently once the oscillation stops. Also at lower speeds there is going to be less drag. Just for sake of comparison, a .30 caliber 150gr spitzer bullet starts slowing at a rate of about 57g once it exits the barrel of a rifle at around 2800fps. That's according to Hatcher.
@tomgodzik13443 жыл бұрын
That is what kind of information I like to know. Great video. Thanks for sharing it with us.
@gaylinlack7266 жыл бұрын
Really interesting video. I never knew that the first 10 yards of arrow flight had such a significant influence on the speed of the arrow. I agree, good to know real world data and not only lab data. I am glad the engineers do that but agree that most of us can not come close to mimicking that. Thanks
@joesheehy78564 жыл бұрын
I would agree it the initial drag put on the fletching to correct the flight. Take away is, if you really want the speed, take the time a tube your arrows so you can shoot a smaller fletching.
@kelchristensen71596 жыл бұрын
Thanks mate. I appreciate your work. Very informative and helpful.
@liedebunker1253 Жыл бұрын
Whoa! You can shoot those arrows! I'm a gun-lover, and I'd never thought anybody could shoot arrows that precisely. Very surprising! 👍👍
@scottnovak43036 жыл бұрын
Great, information as always! Thanks for keeping it ‘real’ world. If any compound Archer’s were to watch this they would probably cry to know their new bow isn’t shooting the advertised FPS. 😁
@rctrix9063 Жыл бұрын
Great experiment. Engineers often forget to ask God if their calculations were right. Drag is obviously a function of velocity because they isn't any when the arrow is stationary. As the arrow is at it's fastest as it leaves the string drag is also at its maximum.
@pensnut083 жыл бұрын
I love this testing and video!! Maybe, and I dont know this, a stiffer spine would reduce the oscillation enough to result in less of an initial drop off. Maybe?
@jkinney46786 жыл бұрын
This makes sense the initial 10 yards is when the feathers are working the hardest, really shows why its important to tune your setup for the cleanest initial arrow flight. Thanks for doing this, I've wanted to but don't have access to a chrono.
@michaelstorm85784 жыл бұрын
You did a nice job. Thanks for the info.
@MrInsaint5 жыл бұрын
Thank you so much sir. Awesome stuff you got there. 👍👌 - Sadly I am not allowed to bowhunting in Norway, but I can travel to Denmark or Sweden for wild boar hunting. (Kenneth Prospecting Norway)
@kevinemard53704 жыл бұрын
I've always wondered about this topic now i have my answer i don't own a chronograph now i can have a rough idea as to the momentum out at 30 yards
@Jazzman-bj9fq6 жыл бұрын
Pretty interesting test. I gotta say though, I was expecting at least a decent Powerpoint presentation of the data :-/
@TheNockingPoint6 жыл бұрын
This is very true. One good slide with graphs would save us from having to watch the whole video. ;-) Surprized that one of your viewers did not write down your numbers and present you with a graph as a present. Present like gift. Not meaning right now. English is so messed up.
@Jazzman-bj9fq6 жыл бұрын
@TheNockingPoint, lol... You and Greg need to do way more vids together, that dialogue!
@TheNockingPoint6 жыл бұрын
I am good with that.
@alanbeaulier57836 жыл бұрын
Greg, good as always. That's good info. to know but my concern is as long as the arrow gets there I'm happy :-). I would like your to comment
@gmivisualsjason37296 жыл бұрын
Fantastic video.....
@dusanpavlovic22013 жыл бұрын
how did you do that intro i mean did you tape a go pro to a camera that's nice
@Leverguns50 Жыл бұрын
So that gets me to thinking now I wonder if your velocity will drop off if you use thumb release and torque. the bow a bit so the arrow doesn’t drag, I think it might not lose as much speed at 10 yards because it doesn’t wobble
@TradArchery101 Жыл бұрын
The arrow (if even close to good tune) should not touch the riser. The feathers will. When you release the string, inertia is what causes the arrow to bend. That bend in turn, ensures the arrow will not hit the riser. The twist used on thumb shooting gives no clearance or performance advantage. The arrow is already off the string before the archer can twist the bow. In fact, it might (I cannot say for sure) do more harm than good. By twisting the bow, the string is no longer traveling in a straight line and this fact would cause it to lose energy. Best way to keep speed? Good form and a clean release. I think the reduction in speed is from friction on the feathers. I think that initial push, combined inertia, bleeds off energy. As it travels, the arrow will flex less and thus bleed off less energy.
@josephd76166 жыл бұрын
Great Video , Good "real life" Science too :)
@freewill82186 жыл бұрын
Greg, If you got problems with 50 meter test. Call greyarcher. ;)
@h0tkoko4 жыл бұрын
Hi Greg @archery101, I was just wondering, how far can an arrow shoot from a 30lb bow. Can you make a video to compare between different arrows?
@TradArchery1014 жыл бұрын
Well over 100 yards. I can hit a Olympic archery target at 100 yards with my 30 pound bow. Seen a girl do it with a 20 pound bow too.
@TheNockingPoint6 жыл бұрын
Greg do you have the same 3 haters giving thumbs down on all your videos?
@TradArchery1016 жыл бұрын
Haters gonna hate. If you give a thumbs down, at least be a big enough person to say why
@TheNockingPoint6 жыл бұрын
I hear you! If someone does not like me, fine. if it is the content or delivery that I can change, That would be good to know.
@miikey-san80576 жыл бұрын
I don't care what that KZbin body cam shows,,,it wasn't me!!
@martinhodge31195 жыл бұрын
Interesting as always.
@sansdecorum46006 жыл бұрын
Interesting. Were I to try that, I'd either get no usable data or be forced to start shoppin' for new chronograph.
@TradArchery1016 жыл бұрын
That is why I put the board in front of it, just in case
@frankie19566 жыл бұрын
Great video Greg interesting information, hope you Bugged out of there 😂👍👍👍
@knifesharpeningnorway2 жыл бұрын
Im looking at the black sheep nova recurve bow its supposed to be similar to samick sage. Will it be a good bow that shoots good and straight for someone completely new to archery? Im thinking 35 pound is right for me
@1alexcody6 жыл бұрын
always felt that people who give the speed of the arrow as it leaves the bow is meaningless at least for hunters I want to know the speed at 20+yards where the rubber meets the road
@h0tkoko4 жыл бұрын
Hi Greg @archery101, I have only one bow. I measured my pull at 24-26lb. I use fibreglass arrows. Yes, cheap stuff. What are your opinions about fiberglass arrows?
@TradArchery1014 жыл бұрын
Khaizal Ozlen As long as you get good arrow flight, it really does not matter
@outofthebox7 Жыл бұрын
Hi! I want to know, if the speed of an arrow increases at the instant it leaves the spring or does it maintain that speed till it starts to lessen? Are there forces that act upon the arrow that make it go faster than the speed potential created by the spring? Does oscillation of the body of the arrow affect its speed? Thank you for you time.
@TradArchery101 Жыл бұрын
I cannot see how an arrow can increase in speed once it leaves the string. There is no more power transfer. From what I have seen in testing, the drop off in speed is noticeble at 10 yards.
@outofthebox7 Жыл бұрын
@@TradArchery101 Thanks. Such an experiment would be helpful.
@Notarealusersname6 жыл бұрын
No graphs? : (
@Backin_Theday4 жыл бұрын
Hey Greg I appreciate the chrono work but I am wondering what the overall weight of your arrows are for the purpose of calculating energy? I tried to reverse engineer what they might be through my own research. I am guessing they are around 413 grains?
@TradArchery1014 жыл бұрын
with the 200 grain points, they weigh in at 500 grains.
@Backin_Theday4 жыл бұрын
@@TradArchery101 Thank you. so for this video where you were using 145 grain points, 200 -145 = 55 grain. 500 - 55 = 445 grain total.
@TradArchery1014 жыл бұрын
@@Backin_Theday I was using full length arrows, with 200 grain field points. They came out to 498 grains total weight.
@Backin_Theday4 жыл бұрын
@@TradArchery101 I was confused then because at 4:27 minutes, you stated 145 grain. I was in my driveway with my chrony yesterday, shooting my Martin Saber that scales at 43.5 pounds (my 30 inch draw length) trying to replicate the fps with various weight arrows. With a 555 grain arrow I was able to get 148 fps max. With a 457 grain arrow I was able to get 160 fps max. With a 406 grain arrow I was able to get 170 fps. I finally dropped to a 303 grain arrow and was able to get 200 fps max. My bag target was so frozen that arrow bounced back out of its hole. I used a variety of arrows and tips that I had and scaled each set up before I shot repeatedly looking for the max number. All of this was done at a full arrow length from the front of my chronograph and I shot many multiple times to eliminate the errors and look for the consistencies. So I figured since my bow scales between your 38 and 48 I should get numbers approximately in between. I'm not trying to argue either just wanted to be able to add your findings into mine to get a better average data stream to use for theoretical calculations. UPDATE: I was able to make a 525 grain arrow and the results are consistent with yours. kzbin.info/www/bejne/rl6xdmR6rMyUlas
@TradArchery1014 жыл бұрын
@@Backin_Theday One thing I have found is that bows perform in no set manner. Here is a prime example: I have a Black Hunter Recurve, 30 Pounds and a Stealth Hunter Recurve, 30 Pounds. Using the exact same arrows, the Stealth Hunter is consistently 10 to 15 fps faster. All you can really do is "guesstimate".
@samojolbo79073 жыл бұрын
Also 12 fps out of 162fps isnt 14%. More like 7,4%.
@gopalsinghtanwar12024 жыл бұрын
I am also left handed
@skuteralwarez82436 жыл бұрын
Great test now make please same with 3and4 featchers to see difrends
@kmarchery6 жыл бұрын
bugs bugs bugs , cheers
@alanbeaulier57836 жыл бұрын
Sorry about that fat fingers. My comment is you need to point your toes out more when you speed up your film then you will look like Charley Chapman :-). Thank you. Alan
@outdoorsman93844 жыл бұрын
How many grain arrow are you shooting ?
@TradArchery1014 жыл бұрын
Depends on what I'm doing. Anywhere form 350 to 500.
@8283124 жыл бұрын
10 grain per pound.
@krs486 жыл бұрын
You said you have a 30 inch draw length in one video how tall are you ?
@TradArchery1016 жыл бұрын
5'9". I dont not anchor at the side of my mouth, but past it.
@TheNockingPoint6 жыл бұрын
Greg, what length of arrows are you currently using?
@sean70586 жыл бұрын
I like real world test thay always show the truth
@nontimebomala22676 жыл бұрын
Ok 12/168 = .071= *SEVEN PERCENT* Both bows dropped *SEVEN PERCENT* in the first ten yards. Just touching on the math. The rest of your measurements don't make sense to me. The big drop during the paradox is probably the most important take away.
@TradArchery1016 жыл бұрын
You do know that an arrow is not and can not be in Paradox. The paradox is something that the archer sees. And that it only occurs on bows not cut to or past center. As for my measurements, It is just to give archers an idea of when an arrows losses speed (which can also be read as energy bleed off).
@pl16764 жыл бұрын
that's stupid that you show arrow velocity and fast forward the video at the same time
@TradArchery1014 жыл бұрын
P L Okay, so you want me to waste time showing me walking to and from over and over?
@pl16764 жыл бұрын
@@TradArchery101 i meant the time of actually shooting arrow. The walking part could be cut out entirely. If i wanted to see people walking around i would just go outside anywhere. i'm not trying to insult you, honestly, i appreciate the video, i'm just trying my best at giving constructive feedback, but i'm an asshole by nature at the same time.
@TradArchery1014 жыл бұрын
@@pl1676 I understand but you also have to realize is that I had other people complain about wasting time showing every shot, and other people complain that I do not show all the shots. This was just a comprise.
@pl16764 жыл бұрын
@@TradArchery101 "showing me walking to and from over and over" So the walking over and over part is that said compromise ?
@TradArchery1014 жыл бұрын
@@pl1676 One of them and that is also why I sped it up.
@samojolbo79073 жыл бұрын
Dude chill u are awesom ofc. ur margin of error is what makes ur data usfull.
@richardwooten76573 жыл бұрын
Do you talk like that at the drive through window ? ANY WAY, I ASKED MY NIEGHBOR ABOUT THIS STUFF , HE TOLD ME TO SHUT UP- THAT HE WAS A CHIROPRACTOR , AND DIDNT KNOW ANYTHING !