WACO Classic Aircraft is the world's preeminent manufacturer of Sport Biplanes. The company currently builds the three-seat biplane, the WACO YMF-5D, based upon the original manufacturing plans, updated to modern safety and avionics systems, and also the Great Lakes 2T-1A-2. 

The aircraft are constructed on the airport at the W.K. Kellogg Regional Airport (KBTL) in Battle Creek, Michigan. WACO Classic Aircraft also operates a repair and restoration subsidiary that specializes in historically significant vintage aircraft. In 2010, the company announced the improved YMF-5D version, powered by a Jacobs 300 h.p. engine and featuring numerous updates. 

The 'F' series was popular with private owner pilots for sporting and other uses and continued in production through the late 1930s. The tandem cockpit UPF-7 version was adopted by the Civilian Pilot Training Program and continued to be built in numbers (over 600) until 1942. 

The YMF of 1934, which had a modified wider and longer fuselage, was returned to production in March 1986 by WACO Classic Aircraft of Lansing Michigan as the YMF-5. Over 100 YMF-5s have been completed by WACO Classic Aircraft and the type remained in low-rate production to customer order in 2012. WACO Classic Aircraft Corp. is a family-owned American company, with owners Peter Bowers and Jon Bowers, and a talented team of craftsmen continuing the tradition of building the finest sport biplane in the world.