2009 Sonex SonexExperimental Aircraft • Knox, IN, USA

This 2009 Sonex, serial number 0826, is being offered for sale by its builder-owner for $21,500. Based at KOXI in Knox, Indiana, the aircraft has always been hangared and is powered by a 2100D Revmaster engine with 815 total time on the airframe and engine (TTAE) and 645 hours since top overhaul (STOH). It features a VFR steam gauge panel, a Terra 760D com radio, and an ACK E-01 ELT. The Prince Q-tip propeller is paired with an electronic/magneto ignition system, and the fuel burn is reported at less than 5 gallons per hour.

The seller notes the last condition inspection was completed in March 2026, and the aircraft qualifies for...