Catapult Competition

The Division of Outreach, the School of Engineering, and the CMSE at the University of Mississippi invite Mississippi students and teachers to participate in an exciting science and engineering event!

Catapult Your Way to Victory

The Catapult Competition is hosted by the Division of Outreach, the School of Engineering, and the Center for Mathematics and Science Education at the University of Mississippi. 

  • Why would we do this? Simple. We want to meet the best middle and highschool surgical-tube catapult builders in Mississippi.

How does the Catapult Competition at UM work?

While some aspects of the competition can change year over year. Here's a quick run down of what you can expect. 

  • Teams of 2-4 students in middle school and high school are invited to participate in this exciting event.
  • Teams compete in 5 challenges:
    • Design
    • Skeeball
    • Bowling
    • Siege the Castle, and
    • Art & Aesthetic.
Awards will be given in each category. An overall winner will be determined from the total of the event scores.

Catapults in Action

Students from across Mississippi do their best to make the best catapult in the state!
Students reposition their catapult for another chance.

Students reposition their catapult for another chance.

Students reload their catapult after a direct hit.

Students reload their catapult after a direct hit.

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Students laughing at a better-than-expected hit.

Ready to see what their catapult is made of.

Preparing see what their catapult is made of.

Racing to take down the next column of boxes.

Racing to take down the next column of boxes.

Students waiting to see if their aim is true.

Students waiting to see if their aim is true.

Frequently Asked Questions

Want to know more about the Catapult Competition? Our FAQ can help.
No. Students are designing and building Catapults. A pulley system would be used by a Trebuchet.
Yes, ball bearing are allowed for the competition.
There are no specific restrictions other than it being an elastomeric tubing. This is a key “engineering” decision for the teams. Workout bands are acceptable since they are tubular in shape.

The maximum height from the ground cannot exceed five feet while the throwing arm is in its rest vertical positions.

  • Just to clarity, the catapult will be measured in “rest” position with the surgical bands relaxed. Generally speaking, the 5 feet restriction is the maximum possible height the catapult measure.

For example, if you are using a stop bar to control the launch angle, it would be the maximum angle, the catapult at rest, and measured to the top of the launch cup.

This requirement means that the machine will have one end of the surgical tubing connected to the throwing arm and the other end of the surgical tubing connected to the frame – this will provide the rotation.

As long as they are stretched linearly, it is within the rules.

Exercise bands are acceptable as they are probably more accessible to many than surgical tubing. We are specifically looking for tubular elastomeric materials for the potential energy, not necessarily latex or surgical

Absolutely, any commercially available off the shelf parts should be. We are more concerned with it meeting the safety requirements than necessarily what parts you choose.

As an engineer, we could not in (good conscience) limit your ability to be creative.

We don’t necessarily count against teams for cost, but it is a consideration for designs that are close during judging.

It may be a good idea to separate out the form and function costs. For example – make a value assessment of the catapult with and without the extra cosmetic parts, meaning one assessment with the fancy paints and props and a separate assessment that is the actual catapult (everything the catapult needs to fully function).

Center for Mathematics and Science Education

The Center for Mathematics and Science works to improve mathematics and science education in Mississippi by fostering interaction between academic and K-12 communities, support the implementation of research-based methods in the classroom, and promote interest in the fields of science, technology, engineering and mathematics (STEM).