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Built with durable materials
the F15-4 provides an exciting step up from standard classroom engines
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project centerpiece
C5-3 Engines 2126 Built with durable materialsThe Estes C5 3 engine is a reliable choice for educational rocketry programs that require consistent performance, controlled recovery timing, and moderate thrust. With a total impulse of 10. 00 N sec and a thrust duration of 1. 85 seconds, this engine provides a smooth, sustained boost that supports safe, observable flight paths for mid weight classroom rockets. Its 3 second delay makes the C5 3 ideal for rockets that reach peak altitude quickly or