The "Novitzkenegger" Slingshot Challenge!


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JoergS
August 21, 2010, 12:07 PM
The "Butterfly" shooting style brings the power of slingshots into new dimensions.

With a "wingspan" of about 1,60 meters, Jörg Sprave can break the 60 ft/lbs (80 Joule) projectile energy that the US military considers as lethal for humans.

So what would happen if a guy with the arm span of Dirk Novitzki (2,30 meters) and the power of Arnold Schwarzenegger (in his days) could achieve with a forward extended slingshot, giving him a 3 meter draw?

http://img251.imageshack.us/img251/7013/novegg2.jpg

http://img839.imageshack.us/img839/6053/novegg1.jpg

http://img842.imageshack.us/img842/8784/novegg3.jpg

To find that out, a new slingshot crossbow has been designed, with a total draw length of said 3 meters. A trigger based locking mechanism allows a normal person to cock and shoot like Novitzkenegger!

The results are quite impressive. 75 m/s with a 36 gramm, 19 mm lead ball (576 gr, .75"). 102 Joules, over 80 ft/lbs!

Here is the video (the last one from the old house, my wife packs the boxes right now):

http://www.youtube.com/watch?v=kUvm6az46bg

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TimboKhan
August 21, 2010, 03:52 PM
I gotta say Joerg, you never fail to come up with interesting stuff. I am not a huge slingshot guy, but I always enjoy your posts.

PTK
August 21, 2010, 04:20 PM
Amazing! I quite enjoy your videos, such fun. :)

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