Steve Trimble
July 21, 2025

A TL-Ultralight-3000 Sirius Aircraft.

Credit: Björn Wylezich / Alamy

OSHKOSH—A pending regulatory change could recast the portfolio of Czech light sport aircraft (LSA) manufacturer TL-Ultralight for the mainstream market, a company executive said here on July 21. The experimental Backcountry, a proposed short-takeoff-and-landing variant of the Sirius, might qualify…

Steve Trimble

Steve covers military aviation, missiles and space for the Aviation Week Network, based in Washington DC.

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Czech LSA Manufacturer Has Big Hopes For Mosaic Rule Change is published in The Weekly of Business Aviation, an Aviation Week Intelligence Network (AWIN) Market Briefing and is included with your AWIN membership.

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