NASA is seeking information from U.S. industry, academia, and government organizations on technologies and concepts for potential cost-shared research, development, and flight testing under its Aeronautics Flight Accelerator (AFA) initiative. The goal is to mature revolutionary technologies across all flight regimes—subsonic, supersonic, and hypersonic—leading to flight testing within the next three years, specifically targeting flights as early as FY26 and no later than FY28. NASA intends to use this input to shape a future competitive solicitation for partnerships, which may involve mechanisms like Funded Space Act Agreements and assume some level of cost-sharing from respondents. The initiative aims to accelerate U.S. competitiveness by promoting rapid flight experimentation, strengthening the aerospace industrial base, and enabling domestic manufacturing. Responses are for planning purposes only and must address specific topics including technology overview, market potential, technical objectives, and desired NASA collaboration.