This is a solicitation for white papers leading to potential contracts for propulsion and power technology development for naval air vehicles, with a focus on research supporting Navy objectives. The performance location is not specified. White papers should not exceed 30 pages, with brevity encouraged, and must include a cost estimate. Submissions are due by 30 September 2026. The Government intends to fully fund any resultant contracts, and cost-plus-fixed-fee, cost-sharing, and cost contracts are anticipated.