The objective of Project L75 is developing a liquid propellant rocket engine with liquid oxygen and ethanol as propellants, turbopump fed and capable to generate 75 kN of thrust in vacuum. The purpose of such engine is to be part of an upper stage of any satellite launch vehicle, including VLS-Alfa and VLS Beta.
The project began in 2008. In 2011, a meeting was held for its Preliminary Design Review. In 2012, an agreement was signed between the Brazilian Space Agency (AEB) and the German Space Agency (DLR) for cooperation in the development and testing of the L75 engine. In 2013, an agreement between Fundação de Desenvolvimento da Pesquisa (FUNDEP) and AEB took effect to support the project.
L75 engine Mock-up