• The US Air Force has awarded nine companies contracts for the Collaborative Combat Aircraft program.
• The contracts are for the 'Concept Refinement' phase of Increment 2.
• The program aims to field drone wingmen that can fly alongside manned aircraft in battle.
• The Air Force plans to down select for 'production awards' after concept refinement and prototyping stages.

The selection of a diverse range of designs may indicate the Air Force's desire to explore different approaches to drone wingmen, potentially prioritizing cost-effectiveness while maintaining operational effectiveness. The involvement of multiple services in the program could lead to interoperability and coordination between the military branches, enhancing combat effectiveness. However, the exact timeline and structure of the program's next stages remain unclear.