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

FAA’s MOSAIC rule opened up a world of possibilities for light-sport aircraft. 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 One is an innovative premium four-seater, all-electric aircraft being developed by Cosmic Aerospace as a clean-sheet design.
It is a candidate to be the first of its kind certified under the FAA's new Modernization of Special Airworthiness Certifications (MOSAIC) rule, which allows for heavier, faster, four-seat, and electrically powered light sport aircraft.
The aircraft features a unique "embedded wing" architecture with six ducted fans, designed for optimal efficiency, a 250-knot top speed, and a 250 nm range, with ambitions to serve general aviation and flight training markets.
Cosmic Aerospace believes the MOSAIC rule provides a crucial, streamlined certification path for their advanced electric propulsion technology, which they plan to scale to larger regional aircraft in the future.

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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.