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 a new "clean-sheet," premium four-seat, all-electric aircraft by Cosmic Aerospace, designed to be the first certified under the FAA's modernized MOSAIC rule.
The MOSAIC rule streamlines certification for heavier, faster, four-seat, and electric Light Sport Aircraft, enabling Cosmic One's innovative design and accelerated market entry.
It features an "embedded wing" architecture with six integrated ducted fans, targeting high efficiency, a 250 nm range, 2+ hours endurance, and a 250-knot top speed.
Cosmic One aims to serve general aviation and flight training markets with lower operating costs and fast charging, with plans to scale its core technology to larger regional 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.