Cropmaster Aircraft Pty Ltd
Amalgamation of Yeoman Aircraft Pty. Ltd. and Yeoman Aviation Pty. Ltd. which, in 1959, began building prototype Yeoman YA1, first flown January 1960. This one/two-seat agricultural low-wing monoplane started production in 1964 as YA1 Cropmaster. A projected tricycle landing-gear YA5 Fieldmaster was not built, and in 1967 production rights in the YA1 were sold to the Cameron-Gray Aircraft Company of the U.S.A.