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Other Hurling Teams


A newer team that formed in 2008, Team Shenanigans has progressively scaled up their Floating Axle King Arthur (FAKA) trebuchet to the point where it is becoming a serious contender to win the trebuchet division!

American Chucker

This team of engineers from Ohio has proven they can shoot far. As rookies to the WCPC in 2009, they came within 150 feet of Yankee Siege's World Record shot.

Merlin/King Arthur

Chris Gerow is a long-time competitor who pioneered innovation among the trebuchets. His King Arthur set the mark for trebuchets for many years, and with the unveiling of his new machine, Merlin, in 2007, he aims to regain that top spot among trebuchets.

Launch-Ness Monster

Relative newcomers to the trebuchet scene, and one of the youngest teams at that, this team brings solid engineering and a brand-new design to the table that promises to be a very strong competitor in the coming years.

Yankee Siege

Now retired, the mighty Yankee Siege competed 6 times at the World Championships, taking home a total of 6 first-place trophies. They got it done purely through brute force, but what a beautiful trebuchet.

Hokie Hurler

The little whipper that could garnered 2 consecutive 4th-place finishes with one of the smallest trebuchets in competition. Who knows what Mark will bring in the future!

Pumpkin Hammer

Competing since 2002, Pumpkin Hammer ran off several 2nd-place and 3rd-place finishes before finally winning in 2010. With one of the largest whippers in the world, their full potential has yet to be realized.


The team that started the torsion movement. Bob Carbo's Onager is nothing like it's first form, but can throw those pumpkins well over 2000 feet!


Team Chucky was a joke early on, but no one laughs at them now. With several shots over 3000 feet with their torsion machines, and a new machine that is poised to shoot even further, Team Chucky might be the first mechanical team to win the overal competition, unseating the air cannons.

Team Tormentum

A long-time team, Team Tormentum is most known for their giant ballista, Mista Ballista, which looks like a giant crossbow. The last couple of years have seen them start to finally realize some of the potential in their machine.


World Championships of Punkin Chunkin

The big one, the one that is shown on television every year, the World Championships have taken place for 25 consecutive years on the first weekend in November in Southern Delaware. With over 110 machines and well over 80,000 spectators over a 3-day event, this is by far the largest hurling competition in the world.

Burlington & Snomish

The biggest West-Coast USA competitions. The Burlington event used to be larger, but space restrictions have turned it into more of a target shooting event, but it is a very cool event! Snomish has taken care of the West Coast distance event, and has seen the monsterous Trebarbaric and crowd-pleasing Gourdinator among others blast past the 1000-foot mark.

European Championships

A growing event, the European Championships take place every fall in Belgium, usually in late September. This event is home to Excalibur, a massive whipper trebuchet that holds the unofficial world record for trebuchets.

Vermont Festival

The Vermont Pumpkin Chunk. They run a smaller event that is more suited to general participants. With total weight restrictions and other features, this is a very competitive event that is something that even a new team can win without big money (unlike the World Championships!).

Clarence, NY: Great Pumpkin Farm

Another limited-size event, but a popular one for Western NY schools. Team Urban Siege might go some year and run demos of some of our stuff.

Trebuchet/Catapult Design Information

The Hurl Forums

The convening place of many of the world's experts in the art of hurling devices. Anything from catapults to trebuchets and even spring-a-pults is discussed here. Have some questions about designs, building, or whatever, then stop by and stay a while! Everyone loves to help as much as they can. This new forum replaces the old forums at that had to shut its doors in November 2013.

Siege Engine

The website of Team Tormentum, a long-time competitor at the World Championships of Punkin Chunkin. Their website contains a lot of information about torsion machines and their parts. It is a must-see for anyone new to building torsion machines (onagers, magonels, ballistas, etc).

Ripcord's Trebuchet Stuff

A must-see for a new hurler. Ripcord has some very good information on how to get your new machine up and running. He also has a very good set of plans for a 3-foot trebuchet, the same as we have here on this site in fact.

Knight's Armory

A site with some great information on torsion machines, along with some other medieval hobbies...

Thomas's "Trebs on the Web"

Thomas from The Hurl runs this site. It has a bunch of good information on PVC trebuchet frames among other features of trebuchets.

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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!

Have fun hurling, but please KEEP IT SAFE!!!