Radical Evenstar - program supplier guide | Airframer

Radical Evenstar

In production

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Solar-powered stratospheric aircraft (referred to as StratoSats) to improve global connectivity, especially in rural areas.

Lift type

Fixed wing

Assembly

Factory-built

Control

Autonomous

Engine type

Application

Experimental

Design & construction

The aircraft as engineered: what it is built from, the systems it flies with, and its configuration — each box a theme.

Airframe & structure

Pressurisation

Unpressurised

Configuration & certification

Wing position

High

Technical reference compiled with AI research; a value appears only where two independent research passes and a web fact-check agree. Gaps are deliberate.

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Type variants

Variant	Launch / first flight	Production end	Notes
Radical Evenstar	2025 / 2025		Full-scale prototype, 120 ft wingspan and 33 lb payload, also known as S-1 Evenstar.

Airframer

Radical

Information on this page is compiled from a variety of published sources; links do not necessarily imply recommendation or confirmation by the airframe manufacturer.