C-Class Model Rocket Engine
An C-class model rocket engine is a single-use engine designed to launch a model rocket. C-class rocket engines have the following properties:
- Total Impulse of 5.01-10.00 Newton-seconds
- Length of 2 3/4"
- Diameter of 1/2" (to fit inside a BT-5 rocket, or engine mount kit). Exception - the Estes C11-3 and C11-7 have a diameter of 1"