Can anyone explain, or better still post a video, of the technique to use with those "French/Swiss/whatever Arrow" things please?
You loosely wrap the cord with a knot at the end over a little indent on the upper end of the arrow and tie it to your finger on the other end. You draw tension in the cord so the knot end is not tied to the arrow but more like a bond between friction and tension. You then pinch the tip or pointy end of the arrow and throw it by normal means but the taught cord acts like an extended limb similar to an atlatl.
Lol one of the lads we told about them tried doing one with a dart head on the end.. let's just say it failed miserably and he's lucky he's not blind!
Hopefully you can find a video or intelligent diagram to explain them as they were wicked fun and surely a decent way to primitively hunt.
My dad told me they were 'invented' when archers had broken their bow and instead improvised by using the remaining string and their arrows to continue ranged attack. Doubt that's entirely accurate but it made sense of how it might have came about.