Quote:Thanks for info! It was exactly what I was hoping to get by posting that message. I have a couple questions. I'm 6'1" with a long reach, what are some longer sling lengths to try? Also with the 2:1 model is that prediction based on the projectile always have correct orientatation, o instead of ()?
Not sure. I'm almost 6'3" and my most-used sling is 34". I have a couple of longer ones, including a dyneema 48" minimum-drag model but I think I'm pretty close to the my limits with the 34" (ie I don't see much if any improvement with longer slings). It seems like for short cords, speed is the limiting factor and strength becomes more important with long ones.
The 2:1 glans is point first. This is pretty easy to acheive with practise and "stiff" cords. The sim cheats a little bit in that it assumes that the projectile flies point first the whole trip. It should actually maintain that attitude at launch (40-45deg) which means that it is pretty much broadside at impact. I haven't been too worried about it since a) the biggest distance gains happen in the first half of the throw b) I'm also not including "gliding flight" which will extend the range a bit (even for tiny lead torpedos). Going to bigger ratios helps up to a point, but the asumptions get a little shakey. A 3:1 flying broadside has a
lot more drag than a poorly thrown 2:1. I think it would be fair to say that starting with spheres will give the most consistent results.
Once you get your chrono you'll have to test a series of lengths. Then you'll need to test a range of projectile weights. Then you'll probably need to do the lengths again and iterate in on a combo most effective for you. Then you'll have to wait a couple of weeks to let your sore arm get back in shape...
Then you'll have to repeat once your technique improves...
Can't wait!
Matthias