The Tennis Ball Trebuchet
This 3-foot tall trebuchet can shoot anything from a golf ball to a softball a good distance. It was the first real trebuchet anyone on the team built (circa 1999).
Medieval Postal Service
Team Urban Siege's first competition-scale trebuchet, Medieval Postal Service is a Floating Arm King Arthur (FAKA) trebuchet which can throw 8-10 pound pumpkins well over 1000 feet with a mere 600-800 pound counterweight!
Jeckyl and Hyde
Jeckyl and Hyde is a convertible trebuchet that can throw as either a King Arthur Trebuchet or a Whipper Trebuchet.
The Melon Felon
The Melon Felon was the first machine built by Team Urban Siege, built to throw small watermelons for a competition at RIT. Packing a 300-pound counterweight in a 4-foot frame, this little machine has some tremendous power.