May 1, 2010 -- Janus and Melon Felon Perform at Imagine RIT
Janus and Melon Felon fire for hundreds or possibly thousands of spectators at the all-day Imagine RIT event. Janus has some trouble early on with a bending release pin, and after that is fixed suffers another set back, ending its day. Janus fired some very nice shots though, powering the 1.25 pound ice balls well over 600 feet with only 100 pounds of counterweight and a rather lengthy sling.
March 20 & 27, 2010 -- Janus Gets Its First Tests
Janus fires its first couple of test shots on March 20, 2010. These shots were mainly intended to verify the cocking and triggering methods, and as such were only at 50 pounds of counterweight with a baseball as the projectile. The second day of testing, a week later, is with 1 pound projectiles and a 100 pound counterweight. Top distance exceeded 900 feet!
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Use "common sense" when operating trebuchets and catapults. Even little ones can be dangerous. Do not place anything you are not willing to lose in the plane of the arm rotation (this includes yourself, body parts, car windshields, cameras, etc). These catapults and trebuchets are capable of throwing just as far backwards as forwards, and the use of a backstop of some sort is recommended, though the use of one does not make the region behind it safe.
Also, just because the throw got away safely downrange does not mean the end of the danger. The arm is likely still swinging wildly along with the counterweight, and there is a sling whipping around. One thing many people fail to take into account is this sling; some people put a metal ring on the slip end of the sling and this ring can HURT when whipping around!