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Storm the Castle

Division: B – Middle School

NC Essential Standards Alignment:

Event Rules: See National Rules

Event Score Sheet: 2023 Storm the Castle Scoresheet

National Event Page: Here


12/21/22: The device will be measured in the “launch mode” or the “Ready to Fire” position.


Prior to the competition, teams will design, construct, and calibrate a single device capable of launching projectiles onto a target and collect data regarding device parameters and performance.


High score wins. Final Score = Best Light LS + Best Heavy LS + CS.


We will be modeling our counterweights after these directions. We have found the end caps at Lowe’s are flatter than the ones at Home Depot, which help with the size.

Event Resources:

Here is a basic Youtube Video describing how you can build a catapult from PVC.