Rex Alexander has over four decades of military aviation, general aviation, and commercial aviation experience, and is a globally recognized subject matter expert on helicopter, vertical lift and eVTOL infrastructure. He is the founder and president of the aeronautical consulting firm Five-Alpha (5α)
and has served as Infrastructure Advisor to the Vertical Flight Society since January 2019. Rex is co-chair of the US Helicopter Safety Team (USHST) Infrastructure Working Group, Chair of the National Fire Protection Association (NFPA) 418, Standard for Heliports, a member of ASTM International F38 WK59317. New Specification for Vertiport Design, a member of the Vertical Aviation Safety Team (VAST) Technology Working Group, a member of the Illuminating Engineering Society (IES) Airport and Heliport Lighting Committee, a member of the Helicopter Association International (HAI) Vertical
Flight Infrastructure Sub-Working Group, and serves as a platform instructor to the U.S. D.O.T.
Transportation Safety Institute (TSI) where he helped develop and teaches their Heliport
Evaluation Course and Heliport Accident investigation Techniques for the Advanced Rotorcraft
Accident investigation course. He is an alumnus of Parks College of Aviation and a former US
Army Warrant Officer and ‘Aeroscout’ Helicopter Pilot, Instructor Pilot and Standardization
Instructor, having served both on active duty and in the Indiana Army National Guard.