Zenith Aircraft Company is based in Mexico Missouri, USA. Kit designs manufactured by the company include the original two-seat STOL CH 701, a high-wing all-metal short take-off and landing design, the larger STOL CH 801 four-place aircraft, the STOL CH 750 light sport utility kit airplane, and the two-seat CH 650, an all-metal low-wing cruiser.
Airmaster produce a range of propellers for these aircraft.