2006 3Xtrim website accessed 23 Sep 2006 Rainbow Sport Aviation website accessed 23 Sep 2006 3Xtrim 3x55 & 3X47 aircraft line brochure 2006 External links 1990s Polish civil utility aircraft 1990s Polish ultralight aircraft 1990s Polish civil trainer aircraft Light-sport aircraft High-wing aircraft Single-engined tractor aircraft Aircraft first flown in 1996