Does arrow mass matter for kinetic energy? Archery Education Video 1 Arrow energy at launch

Video 1 of the archery education series where we break down all things archery! Follow along if you interested in learning more about archery. On this episode we are going to discuss Kinetic energy at launch and how it affects Kinetic energy at launch. Heavy vs Light Arrow
Prime Revex 4 speed, mass, heavy , light, middle
Video 2: • Heavy vs light arrows ...
Arrow Drag,
Penetration,
FOC effects on drag,
FOC effects on penetration,
Arrow geometry and fletching effects on drag and energy,
Bow tuning effects on energy loss
Bow tuning effect on penetration
Arrow impact angle effects
Arrow momentum
Target/animal forces opposing penetration
and more as the questions come in.
Archery testing
Camera gear:
Sony A7c
deity d4 duo mic
tamron 28-200mm
tamron 20-40mm
Sirui tripod
Iphone 13 pro max
#archery #education #hunting #outdoors #physics #testing #howto

[@pennyontrack]

Watched all your videos. Really good stuff

[@Lucas_Palmer_Archery]

Much appreciated! More to come! Thanks for watching!

[@paulheberling2750]

Love the science behind the arrow! Keep ‘em comin’

[@Lucas_Palmer_Archery]

Thank you! Glad you enjoy the videos more are coming.

[@paulheberling2750]

@@Lucas_Palmer_Archery yes! Glad you’re doing this as there’s not much arrow science content out there on the tubes!

[@chrispalffy3511]

Hi Lucas, you'll have to add some distance, like 40 to 60 yards, to see and read what the KE is doing at real-world hunting distances. Another video, I guess?

[@Lucas_Palmer_Archery]

kzbin.info/www/bejne/jKbQi3-ohNqIhMk

[@Lucas_Palmer_Archery]

video 2 might answer your questions.

[@andysmith8295]

it is not just a black and white heavy vs light to get a conclusion. This is just one part of it. Lots of factors to come up with a "perfect" arrow for you and the game your after(assuming we are relating this to a hunting scenario). You are correct- any bow is a kenetic energy machine per it's cam design, DL,DW and BH, so in a proportional test like your- the difference is minimal as the machine(the bow) did not change.

[@Lucas_Palmer_Archery]

Absolutely more videos to come explaining all this and more, there’s lots of questions to answer some we can some we can’t. Thanks for watching.

[@martinjolicoeur1571]

Yes love to see that super cool

[@Lucas_Palmer_Archery]

Thanks glad you enjoyed the video more to come.

[@mgrundy]

any momentum tests coming? preferably at 15+ yds for average hunting distances.

[@Lucas_Palmer_Archery]

What specifically are you looking for %change of momentum between arrow masses? This is covered in video 2 when I discuss drags reduction of energy downrange. The Momentum is also listed although not discussed, however momentum retention is proportional to the velocity retention. So if more energy is retained more momentum is also retained.

[@Lucas_Palmer_Archery]

However, I will be making a video going into more depth of drag and a method of estimating you downrange energy and momentum based on arrow mass and your bows initial energy which can be determined by a chronograph.

[@mgrundy]

I saw the other videos after i posted. Keep em coming!!

[@Lucas_Palmer_Archery]

Thank you for your comment any and all topics you wish to discuss or have a video explanation made please let me know I'd be happy to do so.

[@jonbrown9490]

I think to really understand why mass matters you would need to express the efficiency of energy transfer from the bow to the arrow at a given span of weights( 350, 450, 550, 600, 650 for example). Then you could use that data set to plot the curve. Most of the time I've seen it expressed in momentum, but it could be interesting to see how much energy is lost in the transmission from the bow to the arrow.

[@Lucas_Palmer_Archery]

I do plan to do this in a future video with a bunch of bows to get a general idea of how bo efficiency changes with mass. I plan to graph each bows draw cycle to determine the potential and then measure the actual energy of the arrow to determine an efficiency of each platform. All potential energy not transferred to the arrow is transfer into the bow via vibration or noise. However what I was trying to illustrate with this video is that modern bows are very consistent with energy transfer regardless of arrow weight. So initial energy should be nearly constant especially for a well tuned bow, however this doesn't mean all bows act this way. Thanks for watching.

[@jonbrown9490]

@@Lucas_Palmer_Archery thanks for putting these videos out. The information is really interesting and well thought out. It seems like it could be interesting to see how consistent the energy transmission actually is even in just one bow from the various weights. I'm guessing if you took all of the dampeners off and measured vibration it would provide some valuable insight.

[@anthonyforfare7223]

You should really get yourself a Mathews bow it’s more efficient when going up in arrow weight. Meaning you won’t see the drop in speed like other bows. Just a friendly suggestion 😁👍🤔 You have definitely earned another sub ‼️👍🤩☝️ Looking forward to more great content 🎯🏹😁😎

[@Lucas_Palmer_Archery]

👍My backup bow is a Mathews VXR 28. It’s a very fast bow especially with heavy arrows. Glad you enjoyed the video. More to come.

[@anthonyforfare7223]

@@Lucas_Palmer_Archery heck yeah buddy 😁‼️I’ll be here for the long haul God willing 🙏😇❣️ I just traded my VXR 31.5 for a Bear Kodiak taken down and now I’m fully transitioned to traditional only!🏹☝️keep up the great content 👍😁‼️🎯 God Bless you and your family 🙏😇❤️🇺🇸

[@Lucas_Palmer_Archery]

Thank you! trad is a whole new game that one day I'd like to get back into. God bless you and yours as well.

[@danagillam]

Since during a shot the Energy stored in the spring (bow) gits transferred to the arrow, it makes since that the arrow mass does not matter. No matter what you shoot the bow energy goes into the arrow (ignoring slight difference in efficiency). KE at the bow is the same, however, the KE downrange will be less for the faster/lighter arrow. The work done on the faster flying arrow (Force X Distance) is greater since it is moving faster and air resistance force depends on velocity squared. So double the speed and you 4 times the air resistance. Distance will be the same for heavy and light arrows. Change in momentum down range is trickier since momentum depends on Force and Time. Momentum = Force x Time And both these variable are changing since the heavy arrow moves slower (less air resistance force), and it takes more time. Heavy arrow has less force (air resistance) but more flight time. Although, however, velocity is squared and time is not. The arrow that moves the slowest has the least amount of lost momentum. In gun talk we would say the heavy arrow has a higher ballistic coefficient, and is less effected by air resistance.

[@NitinVarmaManthena]

Can you please share the link to the scale that you are using?

[@Lucas_Palmer_Archery]

www.amazon.com/Back-Lit-Function-Multifunction-Medicine-Collections/dp/B07L8ZVVRM/ref=sr_1_23?crid=1UW0V79O3VYYB&dib=eyJ2IjoiMSJ9.8gP0Bq-qPSMkBGO4Zrdi3LgPAxpU7kxWEEmSGOZEAx-ol6dxAKs7nKXpnpvRqYzqHD0ZuC0i9n_Cl-vUanT4RA.1XiVGob8keDsvHPNAL0TBSn4d5VNyxx6NGhHm7X6ly4&dib_tag=se&keywords=arrow+scale&qid=1704930454&sprefix=arrow+scal%2Caps%2C240&sr=8-23

[@Lucas_Palmer_Archery]

its just an amazon special however it has worked really well and comes with a set weight to confirm accuracy. link below.

[@NitinVarmaManthena]

@@Lucas_Palmer_Archery Thank you for quick response. But you forgot the link

[@Lucas_Palmer_Archery]

Hey sorry I didn't tag you in the comment with the link. here it is again. @@NitinVarmaManthena www.amazon.com/Back-Lit-Function-Multifunction-Medicine-Collections/dp/B07L8ZVVRM/ref=pd_ci_mcx_mh_mcx_views_0?pd_rd_w=sq6rE&content-id=amzn1.sym.225b4624-972d-4629-9040-f1bf9923dd95%3Aamzn1.symc.40e6a10e-cbc4-4fa5-81e3-4435ff64d03b&pf_rd_p=225b4624-972d-4629-9040-f1bf9923dd95&pf_rd_r=G69G1BVFZRQWH74B7W5K&pd_rd_wg=EjUOm&pd_rd_r=980bbbbb-bd2e-4bd4-89db-5b3624941b29&pd_rd_i=B07L8ZVVRM

[@morder1965]

Shouldnt need to over think it on a compound an older guy at my local shop shoots a recurve 27inch 35lb 500 grain arrow and zips through deer when they're broadside he said high foc perfect arrow flight and a scary scarp 2 blade trumps heavy lb

[@Lucas_Palmer_Archery]

Absolutely anyone using a compound, with longer draw weights shouldn’t worry about mass and velocity shorter draw length and weights should maybe consider more especially if they intend to shoot longer distances. More videos to come thanks for watching.

[@photobyTaps]

Thank you. I always wondered how and why an arrow can out penetrate a 7.62 NATO rifle

[@Lucas_Palmer_Archery]

The next video will be all about penetration working on it now. Bullets behave quite differently than arrows the biggest is they expand during penetration to create a large cavity, that’s why some exit wounds are baseballs. Where arrows cut creating a small channel to pass through. Cutting a small channel takes much less energy. Thanks for the comment! Take care

[@christopherwatson283]

I did. Speed kills. Let them lob All They want.

[@stevehunt4660]

No real surprises there....

[@Lucas_Palmer_Archery]

Absolutely although I expected the heavy arrow to make the bow slightly more efficient, however it seems that newer bows don’t experience that like older bows. This video is more to illustrate that Kinetic energy has nothing to do with arrows velocity I.e faster arrow has more KE. That’s only half the equation, the bow shooting the arrow is really the only factor.

[@stevehunt4660]

@@Lucas_Palmer_Archery i think what you've done here is great, there has been quite a bit of discussion on the subject online in recent years however the facts too often seem to be somewhat clouded by the personalities in the debate and the message doesn't quite get across.

[@Lucas_Palmer_Archery]

@@stevehunt4660 Thanks! I like everyone else have bias to what I like but I am trying to remain as neutral as possible. My goal is to simply explain the pros and the cons so that everyone can make an informed decision.