Here's the link to the Power Point shown in class (with info on the various jobs you can apply for). Remember, job narrative paragraphs are due on Friday at the beginning of class.
Here are some documents with helpful info on trebuchet design. They come from a website that no longer appears to be online called Backyard Artillery.
Sling Prongs and Release Pins
Slings and Pouches
Throwing Arm and Sling Adjustments