Tan flat bands for 200mps shoot?

Discussion in 'General Slingshot Discussions' started by otta88sun, Nov 27, 2012.

  1. otta88sun

    otta88sun New Member

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    I don't know how much fastly Tan flats bands work but i red in this forum that thiner is a band, faster it will work...<br>so, looking to thera band bands color i saw that the TAN (light yellow one) is the more thin.<br>So i apologize that making about 10 (or more) TAN bands per side we could get the faster slinghost ever made...<br>is that theory possible?<br><br>Than u <br>Ottavio<br><br>(my dream is to shoot with a 90cm drawlenght 33g at 280mps) <img src="http://illiweb.com/fa/i/smiles/icon_wink.gif" alt="Wink" longdesc="15"><img src="http://illiweb.com/fa/i/smiles/icon_wink.gif" alt="Wink" longdesc="15">
     
  2. otta88sun

    otta88sun New Member

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    here a video<br><a href="http://www.youtube.com/watch?v=9ePBqzm_Gao" target="_blank" rel="nofollow">http://www.youtube.com/watch?v=9ePBqzm_Gao</a><br>joerg "call" that SS (the first) the fastest one, 8 bands per side with TAN bands, anyone have idea of bullet weight and its speed?
     

  3. Arturo Borquez

    Arturo Borquez Administrator

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    Hello Ottavio, you meat 200mps (meter per second), or fps ??
     
  4. otta88sun

    otta88sun New Member

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    i mean 280 meter per second with a 33g <img src="http://illiweb.com/fa/i/smiles/icon_smile.gif" alt="Smile" longdesc="2"> .its a dream yeah but it is more than 1200J power!
     
  5. Arturo Borquez

    Arturo Borquez Administrator

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    I beleieve that 280 mps is out of the physical limit of any kind of rubber, even hot and dry fired (without ammo) ... the only way for 1200j is a slingshot cannon with a 240 gr ball at 50 mps ... not too much portable weapon ...
     
  6. meeeee!

    meeeee! New Member

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    <table width="90%" cellspacing="1" cellpadding="0" border="0" align="center">
    <tr><td><span class="genmed"><b>Arturo Borquez wrote:</b></span></td></tr>
    <tr><td class="quote">I beleieve that 280 mps is out of the physical limit of any kind of rubber, even hot and dry fired (without ammo) ... the only way for 1200j is a slingshot cannon with a 240 gr ball at 50 mps ... not too much portable weapon ...</td></tr>
    </table>
    <span class="postbody"><br><br>i think the max speed of rubber of 500 to 600 fps. so right now it is not possible, but maybe someone will create rubber that can contract at a greater speed than current rubber! <img src="http://illiweb.com/fa/i/smiles/icon_cheers.png" alt="cheers" longdesc="28"></span>
     
  7. meeeee!

    meeeee! New Member

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    <table width="90%" cellspacing="1" cellpadding="0" border="0" align="center">
    <tr><td><span class="genmed"><b>otta88sun wrote:</b></span></td></tr>
    <tr><td class="quote">I don't know how much fastly Tan flats bands work but i red in this forum that thiner is a band, faster it will work...<br>so, looking to thera band bands color i saw that the TAN (light yellow one) is the more thin.<br>So i apologize that making about 10 (or more) TAN bands per side we could get the faster slinghost ever made...<br>is that theory possible?<br><br>Than u <br>Ottavio<br><br>(my dream is to shoot with a 90cm drawlenght 33g at 280mps) <img src="http://illiweb.com/fa/i/smiles/icon_wink.gif" alt="Wink" longdesc="15"><img src="http://illiweb.com/fa/i/smiles/icon_wink.gif" alt="Wink" longdesc="15">
    </td></tr>
    </table>
    <span class="postbody"><br><br>a slingshot that uses theraband tan would be the fastest compared to the other colors of theraband, but....<br><br>theraband is not the fastest, i think natural latex is the fastest, but not by much. so if you wanted the fastest you would use natural latex, or if there is something faster you would use that. you would want very wide bands with as few layers as possible and an extreme taper. you would want the lightest pouch and ammo possible.</span>
     
  8. Arturo Borquez

    Arturo Borquez Administrator

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    <table width="90%" cellspacing="1" cellpadding="0" border="0" align="center">
    <tr><td><span class="genmed"><b>Arturo Borquez wrote:</b></span></td></tr>
    <tr><td class="quote">I beleieve that 280 mps is out of the physical limit of any kind of rubber, even hot and dry fired (without ammo) ... the only way for 1200j is a slingshot cannon with a 240 gr ball at 50 mps ... not too much portable weapon ...</td></tr>
    </table>
    <span class="postbody"><br>No my first example was short ... 1200j at 50mps needs a 960gr ammo !!!</span>
     
  9. CEZ

    CEZ New Member

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    Rubber itself can contract at a limited speed but with a pulley system you can double that speed. Only problem is that you have to compensate the draw weight which is halved by the system.<br>I think going in that direction you would be able to achieve really high speeds, of course given the fact you could build a system that would be able to withstand the hundreds of kilograms of draw weight. <br>Unfortunately the amount of rubber needed for that would also make it as portable as a cannon. Not to mention how dangerous such a contraption would be:)
     
  10. meeeee!

    meeeee! New Member

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    <table width="90%" cellspacing="1" cellpadding="0" border="0" align="center">
    <tr><td><span class="genmed"><b>CEZ wrote:</b></span></td></tr>
    <tr><td class="quote">Rubber itself can contract at a limited speed but with a pulley system you can double that speed. Only problem is that you have to compensate the draw weight which is halved by the system.<br>I think going in that direction you would be able to achieve really high speeds, of course given the fact you could build a system that would be able to withstand the hundreds of kilograms of draw weight. <br>Unfortunately the amount of rubber needed for that would also make it as portable as a cannon. Not to mention how dangerous such a contraption would be:)</td></tr>
    </table>
    <span class="postbody"><br><br>how would a pulley system increase the speed of the rubber? it could increase the speed of the ammo but it would only slow down the rubber.</span>
     
  11. CEZ

    CEZ New Member

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    You are right, but it's the speed of the ammo we're after in the end anyway, right? And that will be doubled.
     
  12. meeeee!

    meeeee! New Member

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    <table width="90%" cellspacing="1" cellpadding="0" border="0" align="center">
    <tr><td><span class="genmed"><b>CEZ wrote:</b></span></td></tr>
    <tr><td class="quote">You are right, but it's the speed of the ammo we're after in the end anyway, right? And that will be doubled.</td></tr>
    </table>
    <span class="postbody"><br><br>yup. but the effects are greater for heavier ammo, if you are using light ammo that is traveling at almost the same speed as the bands, a pulley system could just slow down the ammo by slowing down the bands. but it is a great way to get extra speed and power for heavier ammo.</span>
     
  13. Tysonspapa

    Tysonspapa New Member

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    the speed is limited by the contract speed of the rubber. you cant shoot faster than that.
     
  14. Antraxx

    Antraxx #7

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    not really tyson.<br>if you use cams you can change the speed because the traveled lines are different.<br><br>That compound-bow-like looking thing jörg tested for example uses that technique.
     
  15. zwillie

    zwillie New Member

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    Hi,<br>if you want to accelerate a 10mm steel ammo (4,08g) and you have a drawlength of 80cm and 20cm bandlenght you have 60cm acceleration way.<br>We add 1,0g to the ammo for the band and pouche weight.<br>We have to accelerate the mass of 0,00508Kg over a way of 60cm.<br>The acceleration is 33333m/s².<br>You need 170N of power to accelerate this mass.<br>And this is not the drawweight!!!<br>This is the average power over the hole way!<br>The theoretically draweight should be about 340N about 34Kg.<br><br>Zwillie
     
  16. Tysonspapa

    Tysonspapa New Member

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    <table width="90%" cellspacing="1" cellpadding="0" border="0" align="center">
    <tr><td><span class="genmed"><b>Antraxx wrote:</b></span></td></tr>
    <tr><td class="quote">not really tyson.<br>if you use cams you can change the speed because the traveled lines are different.<br><br>That compound-bow-like looking thing jörg tested for example uses that technique.</td></tr>
    </table>
    <span class="postbody"><br><br>yer thats true. i was thinkin about normal slingshots. should have mentioned that. <img src="http://illiweb.com/fa/i/smiles/icon_sad.gif" alt="Sad" longdesc="3"></span>
     
  17. Arturo Borquez

    Arturo Borquez Administrator

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    <table width="90%" cellspacing="1" cellpadding="0" border="0" align="center">
    <tr><td><span class="genmed"><b>Antraxx wrote:</b></span></td></tr>
    <tr><td class="quote">not really tyson.<br>if you use cams you can change the speed because the traveled lines are different.<br><br>That compound-bow-like looking thing jörg tested for example uses that technique.</td></tr>
    </table>
    <span class="postbody"><br><br>So if you want to do such weapon, with cams or some sort of speed multiplier what you need is very strong rubber and very strong/light mechanics, maybe carbon fibre compounds like the Raptor bow which can reach 150+mps with 11mm steel ball, anyway slower than 200+mps ...</span>
     
  18. otta88sun

    otta88sun New Member

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    i ve ordined thera band TAN and BLUE... when them will arrive to me, i'll build bands and test shoots with chrony... i'll update all
     
  19. meeeee!

    meeeee! New Member

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    <table width="90%" cellspacing="1" cellpadding="0" border="0" align="center">
    <tr><td><span class="genmed"><b>Antraxx wrote:</b></span></td></tr>
    <tr><td class="quote">not really tyson.<br>if you use cams you can change the speed because the traveled lines are different.<br><br>That compound-bow-like looking thing jörg tested for example uses that technique.</td></tr>
    </table>
    <span class="postbody"><br><br>that makes no sense.</span>
     
  20. meeeee!

    meeeee! New Member

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    <table width="90%" cellspacing="1" cellpadding="0" border="0" align="center">
    <tr><td><span class="genmed"><b>otta88sun wrote:</b></span></td></tr>
    <tr><td class="quote">i ve ordined thera band TAN and BLUE... when them will arrive to me, i'll build bands and test shoots with chrony... i'll update all</td></tr>
    </table>
    <span class="postbody"><br><br>cool!<br>i was considering buying tan but i gave it up cuz it would be a huge pain having to cut like 40 strips to make one bandset!</span>