The Barrows Bearhawk, now also called the Bearhawk 4-Place, is an American amateur-built aircraft, designed by Bob Barrows and produced by R&B Aircraft of Fincastle, Virginia, AviPro Aircraft and now Bearhawk Aircraft of Austin, Texas. The aircraft is supplied as a kit or as plans for amateur construction.

The Lycoming O-360 is a family of four-cylinder, direct-drive, horizontally opposed, air-cooled, piston aircraft engines. Engines in the O-360 series produce between 145 and 225 horsepower, with the basic O-360 producing 180 horsepower.