Well x-49 your link was interesting and it lead me to http://www.stormthecastle.com/trebuc...et-physics.htm
which had some really interesting numbers. Ratio of weight of ballast to projectile, 133:1. So to lob our 16 lb bowling ball we a 2128 lb counter weight. Wow. Wonder if our eyes are bigger than our stomach.
There 10 foot Trebuchet would probable work just fine with the 6 PDR Zinc ball I shoot from the "junk yard dog". It looked interesting and might be a very doable project that we can get the Grand daughter involved in. Not to big.
Through various links in that webpage I found this one. A High school physics class project lobbing Golf balls.
That looks very interesting. Maybe more into our appetite. How they set uo to adjust the angle for the release pin is pretty clever.
George, the engineer for ever. At first I was a bit over whelmed by your links especially the Algorithmic link, way way over my head, way over. But right in the middle of his website is the tickler-a bowling ball trebuchet. No links or details, just two pictures. That fellow will get an email.
Looking at bit more at the Virtual Trebuchet link and some things started to click and I can see we can probably use this link for predicting the ballistics of our Machine. Thanks George.
I will have to talk it over with my friend and see what he thinks. We are looking for just a project to keep two retired old guys busy. We both have wives who like to find things for us to do when they think we aren't doing anything.
Keep the ideas coming.