From its inception, Bisky Team has been aware of the critical importance of having an efficient propulsion system to push its rockets to increasingly challenging heights. The vision of reaching 100 km altitude in the near future highlighted the inherent limitations of commercial solid engines. Motivated by this challenge, the team embarked on a parallel development path, exploring hybrid engine technology—engines that combine different types of fuels, such as solids and liquids, in a single combustion chamber to generate thrust, while continuing to launch rockets equipped with commercial solid engines.

In the near future, Bisky Team’s aspiration is to merge these two development streams, allowing rockets and hybrid engines to integrate and bring to life the first hybrid rocket launched by the team. This approach not only promises to take the team to new heights but also to ensure precise control during flight, adjusting the propulsion according to the specific requirements of each mission. Over several years of dedication, Bisky Team has progressed from modest prototypes with 500 Newtons of thrust to powerful engines of 5000 Newtons, whose ignition is imminent, with significantly extended burn times. Below, a description of the engines developed or in the process of development by the team is presented.


M1 is the first hybrid engine designed by BiSKY Team and never ignited by a student team in Spain.


M1.5 is an improved version of M1 with ignition capability.


M2 is the second iteration of hybrid engines completely designed by BiSKY Team.


M3 will be the team’s first hybrid engine to be incorporated into a rocket designed by us and take flight.