There are 4 Kolb Aircraft TWINSTAR MARK III XT aircraft on the U.S. registry that TailWiki has a page for. Every one is built from the public FAA record — year, serial, engine, home base, and registration history — and owners and pilots add photos, trips, and stories on top. The ones listed here were built between 2017 and 2023.
N898QA
2023 Larry Fike TWINSTAR MARK III XT
Evergreen, CO
N224QA
2020 Kolb Aircraft Co MARK III XTRA
Castle Rock, CO
N912MX
2017 Rex Taylor KOLB TWINSTAR M3XTRA
Cedar City, UT
N1622B
Elton Cole KOLB MARK III XTRA
Harper, TX