The Department of Transportation, through the Federal Aviation Administration (FAA), intends to contract on a single source basis with Rail Tec Arsenal (RTA) for climatic wind tunnel testing related to electric vertical take-off and landing (eVTOL) vehicles. The FAA requires specialized testing to investigate operational safety risks associated with eVTOLs in icing environments, and RTA's facility is uniquely equipped with a large test section capable of simulating the necessary conditions for this research. This procurement is critical for advancing the safety and operational understanding of eVTOL technology, and interested parties may direct inquiries to Contracting Officer Harry Lutz at Harry.Lutz@faa.gov by December 10, 2025. Please note that this announcement is for informational purposes only, and no competitive solicitation will be issued.