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 is developing the "Cosmic One," a clean-sheet, four-seat, all-electric aircraft, poised to be among the first certified under the FAA's new MOSAIC rule which expands parameters for light sport aircraft to include heavier, faster, four-seat, and electric models.
The aircraft features a unique "embedded wing" architecture with six integrated electric ducted fans, a design chosen from scratch to optimize performance for efficiency, range (250 nm), endurance (2+ hours), and speed (250 knots).
Cosmic Aerospace views the Cosmic One and the MOSAIC certification path as a strategic accelerator to bring its electric propulsion technology to market faster, serving general aviation needs like flight training, and eventually scaling up for larger commercial 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.