This document provides a literature review on aluminium-based metal matrix composites for aerospace applications. It discusses factors that affect the properties of Al-MMCs, including reaction at the interface, wettability, distribution of reinforcing materials, strengthening mechanisms, grain size, and fabrication methods. It also reviews studies on hybrid aluminium composites reinforced with multiple materials. The conclusion is that Al-MMC shows promise for aerospace due to its high strength-to-weight ratio, good ductility, corrosion and wear resistance. Proper consideration of interface reactions, reinforcement properties, and fabrication process is important to achieve optimal mechanical properties.