4-Seat All-Electric Cosmic One Embodies New Era of Light Sport Aircraft

FAA’s MOSAIC rule opened up a world of possibilities for LSAs, and Cosmic Aerospace is exploring almost all of them.

Jack Daleo

Friday, September 11, 2026 at 09:00 AM ET

Verified

Edited By:

Zach Vasile

Cosmic Aerospace’s clean-sheet, all-electric four-seater, Cosmic One, is designed for a unique embedded wing propulsion system. [Credit: Cosmic Aerospace]

Key Takeaways:

Cosmic Aerospace's Cosmic One is a pioneering four-seat, all-electric aircraft being developed as a "clean-sheet" design to be the first certified under the FAA's new MOSAIC rule, which expands Light Sport Aircraft (LSA) categories to include electric propulsion, higher speeds, and increased seating capacity.
The aircraft features a unique "embedded wing" architecture with integrated ducted electric fans, allowing for optimal performance, efficiency, a targeted 250 nm range and 2+ hours endurance, and a 250-knot top speed.
Cosmic One aims to serve the general aviation market, including flight training, by offering advantages like lower operating costs, rapid charging, and improved pilot visibility, while also acting as a scalable technology demonstrator for future, larger electric aircraft.

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There has never been an aircraft quite like Cosmic One.

The model—a “premium four-seater [full] electric aircraft” according to Christopher Chahine, co-founder and CEO of Colorado-based manufacturer Cosmic Aerospace—is still in the preliminary design stage. But it is a candidate to be the first clean-sheet, four-seat, all-electric aircraft certified under the FAA’s refreshed Modernization of Special Airworthiness Certifications (MOSAIC) rule.