Main Discussion Area > English Warbow
Warbow FPS?
Joec123able:
--- Quote from: Heffalump on November 05, 2013, 08:58:39 am ---
--- Quote from: Joec123able on November 05, 2013, 04:37:05 am ---Squirrelslinger there's no freakin way any arrow is going to knock any one down in fact even the heaviest of warbow arrows from the heaviest bow wouldn't even nudge an average man now of course if you shot an unarmoured man with a blunt heavy arrow it would shatter bones that's for sure but wouldn't move him at all.
--- End quote ---
....so by your reckoning Joe, if we were to take a guy in full armour, he wouldn't even notice a series of 1/2" shafted rubber tipped blunts shot at him, they'd be like flies buzzing around outside his steel suit?........
http://youtu.be/_pxHnntyduw
Really? Have you ever even handled a half-inch hardwood shafted 32" long war arrow and considered the associated point loading if shot from a heavy bow? Kinetic energy anyone?! ::) LoL
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Are you serious man ?? I didn't say nothing like that but it surely isn't going to be pushing a guy to the ground haha
WillS:
Apologies for the language version, you'll have to buy the DVD if you want it in English!
http://www.youtube.com/watch?v=nlgM_aYgIMw
Skip to 29 minutes in. Watch Joe and Mark shoot half inchers into the force meter from 120lb bows. Not even full power warbows being used here.
If your Spanish isn't great, he gets a reading of 115lbs off target, and then 300lbs dead on the meter. That's 300lbs of force going straight into you, at 170 feet per second. If you don't think that would knock you on your arse you're crazy!
He goes on to say "you've got a value of 10 newton seconds, which is actually about the mid range of a 44 magnum bullet"
I'm fairly certain (having never been shot before) that a normal bloke walking up hill towards some archers getting hit at that force would fall over. Just my opinion.
(Any warbow fans need to get this DVD by the way. Lots of great archery stuff, and lots of good cameos from EWBS members ;) )
llkinak:
--- Quote ---If your Spanish isn't great, he gets a reading of 115lbs off target, and then 300lbs dead on the meter. That's 300lbs of force going straight into you, at 170 feet per second. If you don't think that would knock you on your arse you're crazy
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Hi, Will
I think you're misinterpreting this a bit. It's not 300 lbs moving at 170fps, it's not even 300 foot pounds of energy. At best a warbow arrow can transmit 100-120 foot pounds into a target, and that's if it sticks into it and doesn't waste some of that energy bouncing off, bending or breaking the arrow, denting the armor, etc, etc, etc. That's a little more than a .25 ACP pistol will do, and those don't knock anybody back when they're shot into a guy wearing a vest. High caliber rifle bullets don't even "knock you on your arse" and they are far, far more powerful than warbow arrows. If the arrow doesn't penetrate the armor and cut some major cables it's not going to be effective, and it won't knock you back unless you're pretty off balance to begin with.
WillS:
Ah ok, I'm with you on the numbers (it's not my thing!) I was quoting the video clip where the guy said it was the same as a 44 mag bullet.
However, surely a bullet is far smaller than an arrow? So even with the same force and speed behind it, a bullet is more likely to make a clean hole straight through, while an arrow has more surface area so will deliver a harder punch? I am terrible with physics, but if the arrow doesn't penetrate, isn't that more likely to deliver blunt force to the target? All the energy that should be used to punch through the armour is being spent/wasted on the area around it, like a great meaty fist thumping into the chest?
Or have I got that totally wrong?
Del the cat:
Yeah... but bullets and even a shotgun blast won't throw you over... that's just Hollywood bull >:(.
If you look at real war footage, people just drop where they stand when shot.
If you make a few comparisons with cricket or tennis balls, they don't knock people over.
Or consider a golf ball (about 1.6 oz) people hit with one of those travelling at a heck of a speed get hurt but not lifted off their feet.
Say a 1/4 pound arrow is doing 130mph and if all the momentum is maintained (which of course it isn't as most of the energy would be dissipated in armour,tissue etc.) and it hits a body weighing 12stone... ( that's 168pounds).
That's going to leave the combined weight travelling at approx 130/16.258 or about 0.77mph which isn't much.
If someone was off ballance they may get toppled, but certainly not thrown over by the impact.
Back to the shotgun. If you shoot one, you need to lean into it a bit, and it would topple you if you were off balance and really didn't know what you were doing. The shot can't possibly hit you with any more force that the recoil of the gun (according to that nice Mr Newton)
Del
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