CAELI 1st student built monliquid ROCKET ENGINE !!

The Estaca Space Launcher (ESL) program is our long-term vision for space innovation, spanning nine years. For the 2023-2024 cycle, our goals include the launch of the ESL-1 rocket and a hot fire test of the Caeli engine. By 2029, we aim to reach an impressive 60 km altitude. This program follows structured phases: design, manufacturing, testing, and ultimately optimizing the ESL launchers for groundbreaking achievements.

1. What is your project about?

The Caeli Rocket Engine project is an ambitious initiative to design and build a cutting-edge propulsion system that pushes the boundaries of student rocketry. The project focuses on developing a high-efficiency liquid-fueled rocket engine with innovative features like aerospike nozzles, gimbaled thrust vector control (TVC), and advanced cooling systems. Our aim is to demonstrate the potential of student-led engineering and inspire others to take bold steps in aerospace innovation.

This project has grown into more than just a technical challenge. It represents teamwork, resilience, and the pursuit of excellence—values that push us to take on complex engineering problems and execute solutions.

2. Why did you decide to make it?

The project was born out of passion for space systems and frustration with the limitations of the existing NAGA hybrid engine of our association, which faced issues like poor combustion quality and a lack of team motivation. Together with my friend Théo, we decided to create an alternative that could:

Induce competition within our rocketry association to boost innovation and performance.

Overcome NAGA’s inefficiencies and aim for higher thrust and reliability.

Start from scratch with a student-driven initiative to prove that we could create something exceptional.

Initially, we had no funding and very few resources. But with perseverance, we managed to secure sponsors and build a strong team. Today, Caeli is a testament to what’s possible with determination, collaboration, and the right mindset.

3. How does it work?

The Caeli Rocket Engine encompasses every aspect of propulsion engineering:

Injection and Combustion: The engine uses high-efficiency injectors to mix fuel and oxidizer for optimal combustion. Our team is designing the combustion chamber to withstand extreme pressures and temperatures while maintaining reliability.

Cooling: Thermal management is achieved with advanced cooling techniques, ensuring the engine can sustain repeated firings without failure.

Aerospike Nozzle: Unlike traditional bell nozzles, our aerospike design optimizes thrust efficiency at varying altitudes. This innovation allows us to maximize performance throughout the rocket’s flight.

Thrust Vector Control (TVC): The engine is equipped with a gimbaled mounting system to allow precise control of its thrust, ensuring accurate trajectory adjustments mid-flight.

Telemetry and Data Acquisition: An engine control computer monitors real-time pressure, temperature, and flow rates, ensuring safety and optimizing performance during testing.