At the Singapore Airshow today, AVIC Avionics inked a Letter of Intent for Cooperation regarding the Avionics Core Processing System for the C929 project with COMAC. This collaboration means AVIC Avionics will equip the C929 with a cutting - edge, independently - developed core avionics processing system. AVIC Avionics, a 50 - 50 joint venture between AVIC and GE Aerospace, has already established itself as the avionics system supplier for the C919.

**Explanation of optimizations**: - **Title**: - “The 'Brain'” is a somewhat informal and metaphorical way of referring to the core avionics system. “Core Avionics System” is a more straightforward and professional term in the aviation industry context. - “Confirmed” gives a rather passive impression. “Unveiled” is more active and implies the revealing of an important development. - **Paragraph**: - “signed” is replaced with “inked”. “Inked” is a more vivid and commonly used verb in business and aviation - related news for signing agreements. - “for the Avionics Core Processing System for the C929 Project” is rephrased to “regarding the Avionics Core Processing System for the C929 project” for smoother flow. - “brand - new” is a common but relatively simple term. “cutting - edge” is more descriptive and emphasizes the advanced nature of the system. - “joint venture equally owned” is rephrased to “50 - 50 joint venture” which is a more concise and commonly understood way of expressing the ownership structure in the business world.