Summary In this episode of Hangar X Studios, host John Ramstead sits down with Dean Donovan, Co‑Founder and Managing Partner at Diamond Stream Partners, to explore the transformative forces reshaping aerospace today. From revolutionary blended wing body designs and hybrid‑electric propulsion to autonomy, advanced air mobility (AAM), eVTOL developments, and the rise of cargo drones, Dean unpacks the technologies, business models, certification challenges, and market dynamics driving aviation’s next frontier. Whether you’re curious about how cost‑per‑seat‑mile economics enable air‑car substitutions or the promise of beyond‑visual‑line‑of‑sight drone operations, this deep dive offers expert insights and real‑world examples that reveal where aerospace is headed in 2025 and beyond.

Episode Highlights Blended Wing Body Aircraft: Why a 30–50% fuel efficiency gain is a game changer for commercial aviation. Hybrid‑Electric Propulsion: How retrofits and new airframes like the TriFan leverage electric boost to cut costs, emissions, and maintenance. Autonomy Under 500 Miles: The untapped value of right‑sized, unmanned aircraft for missions today flown by over‑sized planes. Advanced Air Mobility (AAM): Technical capabilities, payload‑range trade‑offs, and the critical role of carrier networks for eVTOL success. Cost‑Per‑Seat‑Mile Economics: Hitting the 65¢ mark to outcompete cars and stimulate regional aviation demand. Mid‑Mile Cargo Drones: How containerized UAVs like Elroy Air and Swiss Drones tackle high‑value, time‑sensitive freight. Disrupting a Trillion‑Dollar Industry: Jet Zero’s potential to upend traditional aircraft markets with blended wing body designs. 2025 Outlook: Certification milestones, hybrid aircraft launches, and a surge in BVLOS drone operations. Key Points with Timestamps 00:02:48 – Blended Wing Body Benefits: Lift‑to‑drag improvements, payload range, and passenger experience enhancements. 00:05:32 – Hybrid‑Electric Propulsion: Retrofitting existing fleets and powering new designs to slash cost per seat‑mile. 00:06:50 – Autonomous Missions: Replacing nine‑seat Cessna Caravans for pipeline inspections with 200‑lb unmanned systems.