1998 Baum Steve Allen Osprey GP-4Single-Engine Piston Aircraft • Rising Star, TX, USA

This 1998 Baum Osprey GP-4, registration N7224A, serial number 8, is offered for sale by AirSpace Auctions and presented as a fast, two-seat experimental amateur-built aircraft. The airframe has accumulated 1,387 total hours. Power comes from a Lycoming IO-360-A1A engine rated at 200 horsepower, with 1,140 hours since major overhaul (TSMOH of 1,868 hours), and a Hartzell two-blade constant-speed propeller that was recently resealed, static balanced, bench checked, and refinished as of January 2026. The aircraft cruises at 240 MPH, has an 1,100-mile range, a 740-pound useful load, and a gross weight of 2,000 pounds, with fuel burn noted at...